The document discusses the major components of a generator stator frame, including an introduction to steam turbines, the working principles of steam turbines, the components of steam turbines, and procedures for fabricating a generator stator frame such as the shop weld plan, test plan, and quality control plan. It provides details on the fabrication of a generator stator frame for a project in Mahagenco.
The document describes the key components of a steam power plant, including:
1. The coal handling plant which includes unloading, conveying, and crushing coal.
2. The boiler, which uses water tubes or fire tubes to generate high pressure steam.
3. Turbines which convert the thermal energy of steam into rotational motion using impulse or reaction blades.
4. Condensers which cool the steam from the turbines before it returns to the boiler via feed pumps to repeat the Rankine cycle that powers the plant.
The document summarizes the operating principles and classifications of steam turbines. It discusses how steam turbines convert thermal energy from steam into mechanical energy by directing high velocity steam onto buckets attached to a rotating shaft. Steam turbines can be classified based on exhaust conditions, stage design, steam flow patterns, and number of stages. Condensing turbines exhaust steam to a condenser, while back pressure turbines maintain a higher exhaust pressure. Impulse turbines use nozzles to impart velocity on steam, while reaction turbines rely on expansion within buckets. Governors control steam flow to regulate turbine speed.
This document provides information about steam turbines, including:
- Steam turbines convert the thermal energy of steam into rotational mechanical energy through a series of stages, with modern turbines invented by Charles Parsons in 1884.
- About 90% of electricity in the US is generated using steam turbines, as the rotary motion produced is well-suited to drive electrical generators.
- Steam turbines come in a wide range of sizes, from small <0.75 kW units for pumps and compressors, to large 1,500 MW turbines for electricity generation. They can be classified in various ways such as by flow direction, number of stages, steam pressure, or governing method.
1. The document discusses steam turbines, including their basic definition and classification as either impulse or reaction turbines. It describes the key components and operating principles of each type.
2. Compounding is discussed as a way to reduce the extremely high rotational speeds of impulse turbines by expanding steam in multiple stages. The three main types of compounding are described.
3. The document outlines some of the main advantages of steam turbines, including their higher thermal efficiency compared to steam engines. Uniform power output and lack of initial condensation losses are also cited as advantages.
The document discusses the major components of steam turbines, including the casing, nozzles, blades, rotor, bearings, governors, and safety devices. It describes the functions of key parts like the nozzle, blades, governors, and oil pumps. It also classifies steam turbines based on the method of steam expansion, flow direction, final pressure, number of stages, and pressure. The document provides information on standards, parameter ranges, troubleshooting, and starting procedures for steam turbines.
Steam turbines work by converting the energy of expanding steam into rotational motion. They have several key components and come in two main types: impulse and reaction. Impulse turbines use nozzles to direct high velocity steam onto turbine blades for impulse, while reaction turbines utilize both fixed and moving blades to expand steam. Common problems in steam turbines include stress corrosion cracking, corrosion fatigue, thermal fatigue, and pitting due to chemical attack from corrosive elements in the steam. Proper lubrication and preventing blade deterioration are important for optimizing steam turbine performance and lifespan.
The document describes the key components of a steam power plant, including:
1. The coal handling plant which includes unloading, conveying, and crushing coal.
2. The boiler, which uses water tubes or fire tubes to generate high pressure steam.
3. Turbines which convert the thermal energy of steam into rotational motion using impulse or reaction blades.
4. Condensers which cool the steam from the turbines before it returns to the boiler via feed pumps to repeat the Rankine cycle that powers the plant.
The document summarizes the operating principles and classifications of steam turbines. It discusses how steam turbines convert thermal energy from steam into mechanical energy by directing high velocity steam onto buckets attached to a rotating shaft. Steam turbines can be classified based on exhaust conditions, stage design, steam flow patterns, and number of stages. Condensing turbines exhaust steam to a condenser, while back pressure turbines maintain a higher exhaust pressure. Impulse turbines use nozzles to impart velocity on steam, while reaction turbines rely on expansion within buckets. Governors control steam flow to regulate turbine speed.
This document provides information about steam turbines, including:
- Steam turbines convert the thermal energy of steam into rotational mechanical energy through a series of stages, with modern turbines invented by Charles Parsons in 1884.
- About 90% of electricity in the US is generated using steam turbines, as the rotary motion produced is well-suited to drive electrical generators.
- Steam turbines come in a wide range of sizes, from small <0.75 kW units for pumps and compressors, to large 1,500 MW turbines for electricity generation. They can be classified in various ways such as by flow direction, number of stages, steam pressure, or governing method.
1. The document discusses steam turbines, including their basic definition and classification as either impulse or reaction turbines. It describes the key components and operating principles of each type.
2. Compounding is discussed as a way to reduce the extremely high rotational speeds of impulse turbines by expanding steam in multiple stages. The three main types of compounding are described.
3. The document outlines some of the main advantages of steam turbines, including their higher thermal efficiency compared to steam engines. Uniform power output and lack of initial condensation losses are also cited as advantages.
The document discusses the major components of steam turbines, including the casing, nozzles, blades, rotor, bearings, governors, and safety devices. It describes the functions of key parts like the nozzle, blades, governors, and oil pumps. It also classifies steam turbines based on the method of steam expansion, flow direction, final pressure, number of stages, and pressure. The document provides information on standards, parameter ranges, troubleshooting, and starting procedures for steam turbines.
Steam turbines work by converting the energy of expanding steam into rotational motion. They have several key components and come in two main types: impulse and reaction. Impulse turbines use nozzles to direct high velocity steam onto turbine blades for impulse, while reaction turbines utilize both fixed and moving blades to expand steam. Common problems in steam turbines include stress corrosion cracking, corrosion fatigue, thermal fatigue, and pitting due to chemical attack from corrosive elements in the steam. Proper lubrication and preventing blade deterioration are important for optimizing steam turbine performance and lifespan.
The document provides an overview of the major components of a steam power plant, including:
1. The boiler, which heats water into steam, and includes accessories like air preheaters, superheaters, and economizers.
2. The steam turbine, which is spun by the steam to drive an electrical generator.
3. The condenser, which condenses the steam from the turbine.
4. The feedwater pump, which pumps water back to the boiler to repeat the steam cycle.
This document presents a summary of a dynamic model developed for simulating the operation of a steam turbine in a full scope power plant. It describes the basic components and types of steam turbines, including impulse and reaction turbines. It also discusses compounding methods used in steam turbines. The dynamic model accounts for thermal and rotational inertia effects during startup and shutdown. The model is used to analyze casing temperature variations over time during turbine operation. Simulation results from the model match actual plant operating data closely.
A steam turbine is a prime mover in which the potential energy of the steam is transformed into kinetic energy and later in its turn is transformed into the mechanical energy of rotation of the turbine shaft
STUDY AND ANALYSIS OF STEAM TURBINE AND TURBINE LOSSESMohammed Sameer
This document provides an abstract for a mini-project presentation on studying and analyzing steam turbines and turbine losses at a thermal power plant (KTPS). The abstract introduces the objectives of studying steam turbine performance and evaluating turbine losses. It also briefly discusses the basic components and working of a steam turbine power plant. The document further includes sections on turbine theory, classifications, construction, components, losses, data collection and calculations for turbine efficiency.
This document discusses steam turbines, including their working principles and different types. It describes how potential energy from steam is converted to kinetic energy and then mechanical energy in a turbine. There are two main types of turbines - impulse turbines and reaction turbines. Impulse turbines expand steam fully in nozzles before it hits moving blades, while reaction turbines feature continuous expansion over fixed and moving blades. The document also discusses methods of compounding turbines to reduce rotor speed, including velocity, pressure, and pressure-velocity compounding.
This document discusses different types of steam turbines based on their operating principles and design. Steam turbines can be classified based on how steam expands through the turbine (impulse, reaction, or a combination), the number of pressure stages, the direction of steam flow, the number of cylinders, the method of governing steam flow, the steam conditions, and their application in stationary or non-stationary systems. Common types include impulse, reaction, and mixed-flow turbines. The document compares impulse and reaction turbines and discusses methods for reducing turbine speed under varying loads.
This document presents information about steam turbines. It begins by defining a turbine as an engine that converts the energy of fluid into mechanical energy. It then describes the basic principles and components of steam turbines, including that steam energy is converted to mechanical work through expansion in a series of fixed and moving blades called stages. It provides details on the main types of steam turbines - back pressure and extraction condensing - and discusses their advantages and disadvantages. The document also provides specifications for 500MW and 600MW steam turbines and describes the basic principles and diagrams of impulse and reaction steam turbines. It concludes by listing some common problems that can occur in steam turbines like stress corrosion cracking, corrosion fatigue, and vibration issues.
The document discusses the basics of steam turbines. It explains that steam turbines convert the potential energy of high-pressure, high-temperature steam into kinetic energy and then mechanical energy. This mechanical energy can be used to drive rotating equipment. Steam turbines are preferred in process plants because waste heat from reactions generates high-pressure steam. The document describes the main types of turbines and compares impulse and reaction turbines. It also outlines key components, safety devices, starting procedures, maintenance checks, and losses within steam turbine systems.
This document is a technical seminar report submitted by a student to fulfill requirements for a Bachelor of Technology degree in Mechanical Engineering. The report discusses the history and working principles of steam turbines, including their advantages and disadvantages. It describes different types of steam turbines such as impulse and reaction turbines. It also covers topics like compounding, steam supply and exhaust conditions, turbine components, operation principles, applications, and thermodynamics of steam turbines. The document contains detailed information presented over multiple sections and references.
The document summarizes key aspects of steam turbines. It begins by explaining that a steam turbine converts the heat energy of steam into kinetic energy and then rotational energy to generate power. It then describes the basic Rankine cycle used in steam turbine power plants.
The main body explains the principles of operation for impulse and reaction turbines. In an impulse turbine, steam expands within nozzles and does not change pressure as it moves over blades, while in a reaction turbine steam pressure gradually drops as it expands over fixed and moving blades.
Finally, it discusses methods to improve efficiency, such as compounding and reheat, where dividing the expansion process into multiple stages separated by reheaters increases overall efficiency compared to a single stage by
This document discusses the key aspects of a 134 MW steam turbine. It begins by defining a steam turbine as a device that extracts thermal energy from pressurized steam and converts it into mechanical energy. It then provides specific design data for a 134 MW turbine, including its rated output, speed, steam conditions, number of extractions and stages. The document goes on to classify turbines based on their steam flow, type of energy conversion, compounding, cylinder arrangement, and exhaust conditions. It describes impulse, reaction, and combined impulse-reaction turbines as well as tandem and cross-compound cylinder arrangements.
In this presentation study on the basic parts of the steam turbine as following turbine casting, turbine rotors, turbine blades, shrouds, turbine bearing device, turbine seals, turbine couplings, governor and lubrication system.
This document provides information about the 660MW turbo-generator and its associated systems for Stage-I of the Sipat Super Thermal Project. It summarizes key details about the steam turbine, its auxiliaries and rated operating conditions. The steam turbine is a K-660-247 model with 59 stages manufactured by LMZ. It operates at rated conditions of 660MW with steam pressure and temperature of 247KSC and 537°C respectively at the high pressure inlet. The document also outlines the turbine governing, lube oil, seal steam and control fluid systems along with specifications for materials, protections and auxiliaries.
The steam turbine was developed to address limitations of the reciprocating steam engine. Sir Charles Parsons developed the first workable steam turbine in 1884 by addressing a key challenge - controlling the high speeds of steam flow. He slowed the steam speed by causing it to expand gradually in multiple stages, with each stage consisting of rings of fixed and rotating blades that extracted energy from the steam. This principle of dividing the expansion into stages is the basis for efficient turbine design today. Parsons' turbine utilized both the impulse and reaction of steam to drive the rotating blades.
The document discusses different types of impulse turbines. It begins by introducing impulse turbines and explaining that they rely on the dynamic action of steam passing through nozzles and imparting force on turbine blades. It then describes three main types of impulse turbines: simple impulse turbines where pressure remains constant; pressure compounded turbines which step down pressure in multiple stages; and velocity compounded turbines which step down velocity through alternating fixed and moving blades. Finally, it discusses pressure-velocity compounded turbines which consider both pressure and velocity changes in a multi-stage design.
The document discusses steam turbines, including:
- Their basic principle of converting steam energy into rotational energy through fixed and moving blades in stages.
- The two main types: impulse turbines which use nozzles to direct steam onto rotor blades, and reaction turbines which use fixed blades to expand steam before it hits moving blades.
- Key components like the casing, rotor, blades, valves, bearings and gearbox.
- Common problems like stress corrosion cracking, corrosion fatigue, and thermal fatigue.
- Impulse turbines use pressure drops in nozzles while reaction turbines utilize expanded steam from fixed blades.
This document discusses steam turbines. It begins by outlining the session objectives which are to classify steam turbines, discuss compounding of steam turbines, and cover forces, work done and efficiency. It then provides information on steam properties, the steam power plant process, types of steam turbines including impulse and reaction turbines, and losses that occur in steam turbines. It also discusses velocity triangles used to understand flow in turbine blades.
This document discusses steam nozzles and turbines. It begins by providing background on the development of steam turbines, including early innovators like de Laval and Parsons. It then covers key topics like the flow of steam through nozzles, different nozzle shapes, impulse and reaction turbines, compounding techniques, and applications of steam turbines. It includes diagrams of velocity diagrams and impulse turbine stages. It concludes with solved problems calculating steam velocities through nozzles using thermodynamic properties.
The document discusses the working principles of steam turbines. It explains that steam turbines extract thermal energy from pressurized steam to produce rotary motion. It describes the ideal Rankine cycle that steam turbines follow, involving isentropic compression, heating, expansion, and cooling processes. There are two main types - impulse turbines that convert steam pressure to velocity and reaction turbines that use both pressure and the reaction force of steam. The document classifies steam turbines and discusses their applications in power generation.
The document discusses process planning, which involves translating design requirements into manufacturing process details. It describes process planning as a bridge between design and manufacturing. The document then discusses several key aspects of process planning including analyzing part requirements, selecting materials and operations, interpreting designs, choosing equipment, and creating work instructions. Finally, it compares manual and computer-aided process planning (CAPP) methods, with CAPP helping to reduce time/costs and increase consistency and accuracy compared to experience-based manual methods. CAPP approaches include variant, generative, and automatic planning.
Bureau Veritas is a global leader in testing, inspection, and certification services established in 1828. It has over 52,000 employees working across more than 940 offices and 340 laboratories in 140 countries. The company provides quality, health, safety, and social responsibility services to over 400,000 clients ranging from individual consumers to large corporations. Bureau Veritas has experienced steady revenue and profit growth over the past decades as it has expanded its portfolio and global footprint.
The document provides an overview of the major components of a steam power plant, including:
1. The boiler, which heats water into steam, and includes accessories like air preheaters, superheaters, and economizers.
2. The steam turbine, which is spun by the steam to drive an electrical generator.
3. The condenser, which condenses the steam from the turbine.
4. The feedwater pump, which pumps water back to the boiler to repeat the steam cycle.
This document presents a summary of a dynamic model developed for simulating the operation of a steam turbine in a full scope power plant. It describes the basic components and types of steam turbines, including impulse and reaction turbines. It also discusses compounding methods used in steam turbines. The dynamic model accounts for thermal and rotational inertia effects during startup and shutdown. The model is used to analyze casing temperature variations over time during turbine operation. Simulation results from the model match actual plant operating data closely.
A steam turbine is a prime mover in which the potential energy of the steam is transformed into kinetic energy and later in its turn is transformed into the mechanical energy of rotation of the turbine shaft
STUDY AND ANALYSIS OF STEAM TURBINE AND TURBINE LOSSESMohammed Sameer
This document provides an abstract for a mini-project presentation on studying and analyzing steam turbines and turbine losses at a thermal power plant (KTPS). The abstract introduces the objectives of studying steam turbine performance and evaluating turbine losses. It also briefly discusses the basic components and working of a steam turbine power plant. The document further includes sections on turbine theory, classifications, construction, components, losses, data collection and calculations for turbine efficiency.
This document discusses steam turbines, including their working principles and different types. It describes how potential energy from steam is converted to kinetic energy and then mechanical energy in a turbine. There are two main types of turbines - impulse turbines and reaction turbines. Impulse turbines expand steam fully in nozzles before it hits moving blades, while reaction turbines feature continuous expansion over fixed and moving blades. The document also discusses methods of compounding turbines to reduce rotor speed, including velocity, pressure, and pressure-velocity compounding.
This document discusses different types of steam turbines based on their operating principles and design. Steam turbines can be classified based on how steam expands through the turbine (impulse, reaction, or a combination), the number of pressure stages, the direction of steam flow, the number of cylinders, the method of governing steam flow, the steam conditions, and their application in stationary or non-stationary systems. Common types include impulse, reaction, and mixed-flow turbines. The document compares impulse and reaction turbines and discusses methods for reducing turbine speed under varying loads.
This document presents information about steam turbines. It begins by defining a turbine as an engine that converts the energy of fluid into mechanical energy. It then describes the basic principles and components of steam turbines, including that steam energy is converted to mechanical work through expansion in a series of fixed and moving blades called stages. It provides details on the main types of steam turbines - back pressure and extraction condensing - and discusses their advantages and disadvantages. The document also provides specifications for 500MW and 600MW steam turbines and describes the basic principles and diagrams of impulse and reaction steam turbines. It concludes by listing some common problems that can occur in steam turbines like stress corrosion cracking, corrosion fatigue, and vibration issues.
The document discusses the basics of steam turbines. It explains that steam turbines convert the potential energy of high-pressure, high-temperature steam into kinetic energy and then mechanical energy. This mechanical energy can be used to drive rotating equipment. Steam turbines are preferred in process plants because waste heat from reactions generates high-pressure steam. The document describes the main types of turbines and compares impulse and reaction turbines. It also outlines key components, safety devices, starting procedures, maintenance checks, and losses within steam turbine systems.
This document is a technical seminar report submitted by a student to fulfill requirements for a Bachelor of Technology degree in Mechanical Engineering. The report discusses the history and working principles of steam turbines, including their advantages and disadvantages. It describes different types of steam turbines such as impulse and reaction turbines. It also covers topics like compounding, steam supply and exhaust conditions, turbine components, operation principles, applications, and thermodynamics of steam turbines. The document contains detailed information presented over multiple sections and references.
The document summarizes key aspects of steam turbines. It begins by explaining that a steam turbine converts the heat energy of steam into kinetic energy and then rotational energy to generate power. It then describes the basic Rankine cycle used in steam turbine power plants.
The main body explains the principles of operation for impulse and reaction turbines. In an impulse turbine, steam expands within nozzles and does not change pressure as it moves over blades, while in a reaction turbine steam pressure gradually drops as it expands over fixed and moving blades.
Finally, it discusses methods to improve efficiency, such as compounding and reheat, where dividing the expansion process into multiple stages separated by reheaters increases overall efficiency compared to a single stage by
This document discusses the key aspects of a 134 MW steam turbine. It begins by defining a steam turbine as a device that extracts thermal energy from pressurized steam and converts it into mechanical energy. It then provides specific design data for a 134 MW turbine, including its rated output, speed, steam conditions, number of extractions and stages. The document goes on to classify turbines based on their steam flow, type of energy conversion, compounding, cylinder arrangement, and exhaust conditions. It describes impulse, reaction, and combined impulse-reaction turbines as well as tandem and cross-compound cylinder arrangements.
In this presentation study on the basic parts of the steam turbine as following turbine casting, turbine rotors, turbine blades, shrouds, turbine bearing device, turbine seals, turbine couplings, governor and lubrication system.
This document provides information about the 660MW turbo-generator and its associated systems for Stage-I of the Sipat Super Thermal Project. It summarizes key details about the steam turbine, its auxiliaries and rated operating conditions. The steam turbine is a K-660-247 model with 59 stages manufactured by LMZ. It operates at rated conditions of 660MW with steam pressure and temperature of 247KSC and 537°C respectively at the high pressure inlet. The document also outlines the turbine governing, lube oil, seal steam and control fluid systems along with specifications for materials, protections and auxiliaries.
The steam turbine was developed to address limitations of the reciprocating steam engine. Sir Charles Parsons developed the first workable steam turbine in 1884 by addressing a key challenge - controlling the high speeds of steam flow. He slowed the steam speed by causing it to expand gradually in multiple stages, with each stage consisting of rings of fixed and rotating blades that extracted energy from the steam. This principle of dividing the expansion into stages is the basis for efficient turbine design today. Parsons' turbine utilized both the impulse and reaction of steam to drive the rotating blades.
The document discusses different types of impulse turbines. It begins by introducing impulse turbines and explaining that they rely on the dynamic action of steam passing through nozzles and imparting force on turbine blades. It then describes three main types of impulse turbines: simple impulse turbines where pressure remains constant; pressure compounded turbines which step down pressure in multiple stages; and velocity compounded turbines which step down velocity through alternating fixed and moving blades. Finally, it discusses pressure-velocity compounded turbines which consider both pressure and velocity changes in a multi-stage design.
The document discusses steam turbines, including:
- Their basic principle of converting steam energy into rotational energy through fixed and moving blades in stages.
- The two main types: impulse turbines which use nozzles to direct steam onto rotor blades, and reaction turbines which use fixed blades to expand steam before it hits moving blades.
- Key components like the casing, rotor, blades, valves, bearings and gearbox.
- Common problems like stress corrosion cracking, corrosion fatigue, and thermal fatigue.
- Impulse turbines use pressure drops in nozzles while reaction turbines utilize expanded steam from fixed blades.
This document discusses steam turbines. It begins by outlining the session objectives which are to classify steam turbines, discuss compounding of steam turbines, and cover forces, work done and efficiency. It then provides information on steam properties, the steam power plant process, types of steam turbines including impulse and reaction turbines, and losses that occur in steam turbines. It also discusses velocity triangles used to understand flow in turbine blades.
This document discusses steam nozzles and turbines. It begins by providing background on the development of steam turbines, including early innovators like de Laval and Parsons. It then covers key topics like the flow of steam through nozzles, different nozzle shapes, impulse and reaction turbines, compounding techniques, and applications of steam turbines. It includes diagrams of velocity diagrams and impulse turbine stages. It concludes with solved problems calculating steam velocities through nozzles using thermodynamic properties.
The document discusses the working principles of steam turbines. It explains that steam turbines extract thermal energy from pressurized steam to produce rotary motion. It describes the ideal Rankine cycle that steam turbines follow, involving isentropic compression, heating, expansion, and cooling processes. There are two main types - impulse turbines that convert steam pressure to velocity and reaction turbines that use both pressure and the reaction force of steam. The document classifies steam turbines and discusses their applications in power generation.
The document discusses process planning, which involves translating design requirements into manufacturing process details. It describes process planning as a bridge between design and manufacturing. The document then discusses several key aspects of process planning including analyzing part requirements, selecting materials and operations, interpreting designs, choosing equipment, and creating work instructions. Finally, it compares manual and computer-aided process planning (CAPP) methods, with CAPP helping to reduce time/costs and increase consistency and accuracy compared to experience-based manual methods. CAPP approaches include variant, generative, and automatic planning.
Bureau Veritas is a global leader in testing, inspection, and certification services established in 1828. It has over 52,000 employees working across more than 940 offices and 340 laboratories in 140 countries. The company provides quality, health, safety, and social responsibility services to over 400,000 clients ranging from individual consumers to large corporations. Bureau Veritas has experienced steady revenue and profit growth over the past decades as it has expanded its portfolio and global footprint.
This document discusses the study and manufacturing of an alternator. It begins by introducing the importance of electricity in economic development and the need to increase power generation capacity. It then describes the main components of a turbo generator including the rotor, stator, and exciter. The principles of electromagnetic induction and operation of generators are explained. Details are provided on the construction of the stator core and winding, as well as insulation systems and vacuum pressure impregnation. Finally, the document briefly discusses the different types of exciters used.
The document provides details about the manufacturing of turbo generators at BHEL Haridwar. It begins with an overview of BHEL, its vision and key business sectors. It then focuses on the two main manufacturing units in Haridwar - Heavy Electrical Equipment Plant and Central Foundry Forge Plant. The key products manufactured include steam turbines, gas turbines, turbo generators and other power equipment. The document further describes the manufacturing process and key blocks/sections involved in manufacturing different components like stator bars, rotor bars, core assembly etc. It provides technical details of various manufacturing steps and significance.
The document discusses project quality management. It describes quality management as including the processes required to ensure a project satisfies its intended needs. There are three key quality processes: plan quality, perform quality assurance, and perform quality control. Planning quality involves determining quality policies and standards. Quality assurance ensures adherence to quality standards. Quality control monitors whether quality standards are being met. The document provides details on various tools and techniques used for each quality process.
This document provides guidelines for welding duplex and superduplex stainless steels. It discusses joint preparation, preheat and interpass temperature requirements. For root welding, it recommends using TIG with a superduplex filler to ensure corrosion resistance. For filling runs, it describes suitable welding processes like TIG, MMA, MIG, FCAW and SAW. Post weld heat treatment and dissimilar welding combinations are also covered.
E2M - Full 3D Black Box Navigation Application for AndroidTerry Kim
Product Introduction of Full 3D Black Box Application for Android. With E2M, your smart phone becomes Black Box Navigation.
-Automatic Video Recording functions for Car Accident and your Video can be shared through SNS(Facebook, Twitter, etc), SMS, Email
Not only accident but you can also record a nice driving/travel with your friend/ family!!
-Location Sharing with your friend: Current Location, Destination
-Voice Search, Word Completion
Este documento presenta una guía de buenas prácticas ambientales para la producción porcina en Honduras. La guía fue desarrollada como parte del apoyo técnico del Proyecto Manejo Integrado de Recursos Ambientales de la Agencia de los Estados Unidos para el Desarrollo Internacional a Honduras para cumplir con los compromisos ambientales del Tratado de Libre Comercio entre Centroamérica y Estados Unidos. La guía contiene información sobre el proceso productivo porcino, los principales impactos ambientales y recomendaciones
This document contains a resume for Mónica Andrea Gómez Virgüez. It lists her personal and contact information, professional profile with experience in floriculture and marketing, work history including positions in childcare, production, sales, and customer service. It also outlines her education including technical training in human resource management from SENA and skills approved. References are provided.
50 Highlights der 37. Auktion am 18. April 2015 - 50 Highlights of Scripophil...Matthias Schmitt
Catalogue with the 50 highlights for the 37th auction of old stocks and bonds (Scripophily, Historische Wertpapiere, Nonvaleurs). The auction takes place in Würzburg, Germany. Old stock and bond certificates are collected. Start now your own collection.
Este documento es una carta de cumpleaños de un padre a su hijo, donde expresa su orgullo y amor por él. El padre desea protección y cuidado de Dios para su hijo, y agradece que haya crecido siguiendo los principios que le enseñaron. También dice que su hijo es una de las cosas más maravillosas que le ha pasado y una bendición, y que a pesar del tiempo siempre será su pequeño ángel.
This document contains Haris Hamza's curriculum vitae. It summarizes his education, which includes a diploma in computer science, MCSA and CCNA certifications. It lists his work experience in IT roles from 2011 to present at various companies in Ras Al Khaimah, UAE, including duties like user account management, email configuration, server maintenance, and network support. It also includes a 2012 project involving networking for a nuclear power plant and part-time hardware engineering work in 2009 in India. Personal details are provided like nationality, date of birth, and contact information.
Un gusano perdió su cola cuando una serpiente se la cortó. El gusano emprendió un viaje para encontrar su cola perdida, preguntándole a varios animales del bosque si la habían visto. Ninguno pudo ayudarlo hasta que habló con un toro sabio, quien le contó que la serpiente se comió su cola. Triste, el gusano regresó a su madre, pero ella lo consoló diciéndole que su cola volvería a crecer.
The document describes InstantFiler, an automatic paper filing system that allows documents to be filed electronically by faxing them to the system and dialing an index number, such as an ID or account number. The system uses SDR units connected to organization's fax machines to route incoming faxes to the centralized InstantFiler server. Documents are scanned, OCR is performed, and documents are filed according to the indexed number. The system generates searchable electronic files and is suitable for various organizations like insurance companies, banks, and government offices to efficiently file documents.
Graph databases come with enhanced connectivity of data and whiteboard friendly paradigm. Some, like Neo4j, also brings a gremlin in your code : it is one of the most powerful graph query langage. It brings a refreshing look at how we store web of data and search for it. Gremlin provides an abstract layer that make it easy to express your business logic without fighting with the code. It may even change your mind on object oriented programming.
Ort business breakfast mailer deloitte finalekagan
An international business breakfast will be held on August 16th at 7:30 am featuring renowned Israeli politician and author Professor Moshe Arens. Professor Arens, who has held positions as Israeli Minister of Defence and Foreign Affairs, will be interviewed by David Shapiro. Attendees can RSVP by contacting Tracy Rosin by email or phone by August 16th. Professor Arens has an impressive background as a businessman, politician, author, and engineer graduating from MIT and Caltech.
El documento describe los diferentes tipos de foros y listas de distribución que se pueden usar para comunicarse y compartir información en línea. Explica que los foros permiten debates sobre varios temas, mientras que las listas de distribución envían mensajes a un grupo de direcciones de correo electrónico. También proporciona enlaces a sitios web donde se pueden crear foros y grupos gratuitos.
The document provides information about the Barh Thermal Power Station located in Patna, Bihar, India. It is owned by NTPC Limited and has a total installed capacity of 3,300 MW produced across 5 units of 660 MW each. The power plant uses coal as its fuel and employs a steam turbine generator configuration. It began operations in 1999 and was established to supply electricity to the state of Bihar at a total project cost of over 26,000 crore rupees.
ppt on NTPC kahalgaon ,bhagalpur ( bihar) BY AKHILESH & PRIYESHAKHILESH KUMAR
This document provides an overview of a summer training presentation on the National Thermal Power Plant in Kahalgaon, Bihar, India. It was submitted by an engineering student to their professor. The presentation covers the plant's coal handling system, boiler and auxiliary systems, turbine system, ash handling system, and off-site maintenance departments. It includes descriptions of the equipment used in coal handling, the boiler maintenance department, turbine maintenance, and ash handling. It also provides background on NTPC, the company that operates the plant, and details on the plant's layout and specifications.
This document is a project report on the impact of scaling on turbine blades. It discusses steam turbine theory, including the basic principles of how steam turbines convert heat energy to kinetic energy. It describes different types of steam turbines and their applications. The document outlines the key components of steam turbines, including casings, rotors, and anchor points. It provides details on steam parameters typically used for turbines with capacities of 200 MW and above. Overall, the project report examines how scale formation on turbine blades can impact turbine performance and efficiency.
This document provides an overview of a training that was conducted at Bharat Heavy Electricals Limited (BHEL) in Haridwar, India. It discusses what BHEL is and its various manufacturing divisions. It then focuses on the Heavy Electrical Equipment Plant in Haridwar, describing its 8 blocks and their roles in manufacturing turbo generators. Details are provided on the steam turbine manufacturing process, including the different types of turbines and their specifications.
The document provides information about hydropower technology. It discusses different types of hydropower turbines including impulse turbines like Pelton wheels and reaction turbines like Francis turbines. It describes components of hydropower plants such as dams, diversion facilities, and pumped storage. It also covers topics like site selection, classification of hydropower plants based on various factors, and technologies used in large, small, and micro hydropower systems.
This document provides information about the Parali Thermal Power Station located in Beed district, Maharashtra, India. It has a total installed capacity of 1130 MW across 6 units built between 1971-2005. Key components of the power plant include the coal handling plant, water handling plant, boiler system, turbine, generator, and transformer. Coal is used as the primary fuel source due to its relatively low cost compared to other fuels. The document describes the basic processes of energy conversion from coal to electricity at the thermal power station.
This document provides an overview of the Badarpur Thermal Power Station (BTPS) owned and operated by NTPC Limited, the largest power generation company in India. It summarizes that BTPS was established in 1973 and transferred to NTPC in 1978. It now has a total installed capacity of 720 MW from 5 units. The document then describes the basic working principles of a steam power plant using the Rankine cycle. It provides diagrams of the typical processes and components involved, including the boiler, turbines, condenser, reheater, and others. Finally, it gives more details on some of the key components and maintenance departments at BTPS.
This document provides an overview of the Badarpur Thermal Power Station (BTPS) owned and operated by NTPC Limited, the largest power generation company in India. It summarizes that BTPS was established in 1973 and transferred to NTPC in 1978. It now has a total installed capacity of 720 MW from 5 units. The document then describes the basic working principles of a steam power plant using the Rankine cycle. It provides diagrams of the typical processes and components involved, including the boiler, turbines, condenser, reheater, and others. Finally, it gives more details on some of the key components and maintenance departments at BTPS.
The document provides information about the Saba Power Plant located in Shaikhupura, Pakistan. It details that the plant has a total generation capacity of 134 MW from its steam turbine generator and 4x0.9 MW from natural gas engines. It also lists the major components of the plant including the 413 ton main boiler, 134 MW steam turbine, 170 MVA generator, cooling tower, and demineralization plant. The document includes specifications, diagrams, and details about the various systems and processes within the power plant.
1) The document summarizes Divesh Kacolia's practical training at the Kota Super Thermal Power Station from July 21st to August 4th 2008.
2) Key aspects of the power station covered include its four stages with a total capacity of 1045MW, the coal handling process, pulverization, boiler, turbine, generator and other components.
3) Detailed information is provided about the energy generated, electricity generation process, coal handling plant, pulverizing plant, boiler, turbine, DC system, economizer, generator, transformer, chimney, cooling tower and water treatment systems.
Ntpc kahalgaon project by bhanu kishanBHANUKISHAN1
This document provides an overview of a summer training presentation on the National Thermal Power Plant in Kahalgaon, Bihar, India. It discusses the various departments and systems within the power plant, including coal handling, the boiler and its maintenance, the turbine system, and ash handling. The power plant has a total installed capacity of 2340 MW and uses coal from local mines to generate electricity through steam turbines.
The document provides information about the Sanjay Gandhi Thermal Power Station located in Birsinghpur, India. It has a total installed capacity of 1340 MW distributed across 5 units ranging from 210-500 MW each. The power plant uses coal as its primary fuel sourced from local mines via rail. Water for the plant is sourced from the nearby Johila River and Dam. The plant has conventional systems for coal handling, steam generation in the boiler, power generation in the turbine, and effluent management. It provides key specifications and details of the various units and systems to run the thermal power generation process.
This industrial training report summarizes the process for manufacturing generating transformers at BHEL Bhopal. It discusses the key steps which include design and drawing, core building by stacking laminated silicon steel sheets, winding manufacturing using horizontal and vertical winding machines, coil assembling, power assembly by mounting the core and coils, case fitting to connect accessories like bushings and radiators, vapor phase drying to remove moisture, testing including routine and type tests, and final dispatch after successful testing. The report provides details on the types of materials, winding configurations, and tests used at each stage of manufacturing large power transformers.
This document provides an overview and report on a vocational training project conducted by Tarun Kumar at the Kanti Thermal Power Station. It includes sections on acknowledging those who supported the training, an abstract describing the thermal power generation process, a table of contents, and sections covering topics like the power plant overview, generation process, boiler components, turbines, and control systems. The document aims to provide insight gained from Tarun Kumar's month-long industrial training placement at the thermal power facility.
This document provides an overview of the NTPC-FGUTTP power plant. It discusses the company NTPC Limited, the evolution of NTPC, and the generation growth of NTPC. It then introduces the specific FGUTTP plant, including its location, installed capacity, production inputs, requirements, and environmental aspects. The document proceeds to describe various systems and components within the plant, including units, cycles, the switchyard, circuit breakers, generators, transformers, boilers, ESP systems, coal handling parts, and advantages of coal handling.
The document is a training report submitted by Amit Kumar describing his one month training at the Kanti Bijlee Utpadan Nigam Limited power plant in Muzaffarpur, Bihar, India. It provides an overview of the plant, describing that it has two 110MW coal-fired generating units. It then summarizes the key components and processes involved in thermal power generation, including converting coal to steam in the boiler, using steam to power the turbine for mechanical energy, and generating electricity through the generator. It concludes by outlining the sections to be covered in the full report.
The document summarizes the author's 6-week training experience at the Badarpur Thermal Power Station (BTPS) run by NTPC Limited. The author visited various divisions of the plant including the Electrical Maintenance Department I (EMD-I), Electrical Maintenance Department II (EMD-II), and Control and Instrumentation Department (C&I). The training provided valuable insights into how electricity is generated at the plant from coal and distributed to consumers.
The document provides information about the SRI Damodaram Sanjeeviah Power Station operated by APGENCO in Andhra Pradesh, India. It discusses the layout of a typical thermal power plant and the principle of the Rankine cycle used. It also provides details about the different components of a steam turbine, including the high pressure turbine, intermediate pressure turbine, and low pressure turbine. The steps involved in the design of a steam turbine are also summarized.
The document provides details about Ranjan Kumar's summer practical training at the National Thermal Power Corporation (NTPC) plant in Kahalgaon, Bihar, India. It discusses the various departments and systems at the plant including coal handling, ash handling, the boiler and turbine systems, water treatment, the cooling tower, electricity generation equipment, transformers, the switchyard, and control and instrumentation. The NTPC Kahalgaon plant has a total installed capacity of 2340 MW and uses coal from nearby mines to generate electricity through its steam turbine units.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
4. PROJECT NAME: MAHAGENCO-3.
PART NAME: STATOR FRAME.
DROWING NO: A11M430
STAGE FOR PRODUCTION: FABRICATION
MANUFACTURE: L&T HAZIRA, SURAT
MATERIAL: SS 400 JIS
IS 2062 gr A/B
L&T MHI TURBINE GENERATORS
6. Introduction
To
Steam Turbine
L&T MHI TURBINE GENERATORS
7. INDEX
•Steam Turbine Basics
• Main component/assemblies/ systems of steam turbine
•Major Sources of Producing Electricity
• Principles of Electricity generation
•Working principal of steam turbine
•Supercritical technology
•Turbine by-pass system
•Major Components used In Turbine
•Shop weld plan
•Test plan
•Quality control plan
•Bill of material
•Stator frame model fabrication sequence procedure
•Box plot plan of generator stator frame
•Process planning sheet
•Some specific terms used in WPS
•WPS
•Functions of generator stator frame
L&T MHI TURBINE GENERATORS
13. Electricity is the
key ingredient for the
development of a nation
L&T MHI TURBINE GENERATORS
14. Hydro Power Plant Thermal Power Plant
Prime mover is Hydro Turbine
Prime mover is Steam Turbine
Rotated by energy of flowing
Rotated by steam produced in
Water supplied from Dam
boiler by burning fossil fuels
/ reservoir
L&T MHI TURBINE GENERATORS
15. Nuclear Power Station Gas based Power Station
Prime-mover is Steam Turbine rotated Prime- mover is Gas Turbine run by
by steam produced in Steam Generator air gas mixture ignited in combustion
by Nuclear fission in the reactor. chamber
L&T MHI TURBINE GENERATORS
16. World Power generation scenario
Thermal Power Plant are most popular way for producing
electricity on large scale and will remain major source of
power generation in foreseeable future due to relatively
•Low capital cost
•Shorter gestation time
•Easy availability of fuel
•Competitive generating cost
•Reasonable high level of operating
availability
L&T MHI TURBINE GENERATORS
17. Power generation scenario in India
11
3
Thermal
Hydro
Nuclear
27 58 Gas
.
Major share in installed capacity and planned in future is thermal
L&T MHI TURBINE GENERATORS
20. Working Principal Of Steam Turbine
Nozzle Plate
Force
‘F’
F
CHANGE IN MOMENTUM = m x v – m x 0
=mxv
L&T MHI TURBINE GENERATORS
21. Working Principal Of Steam Turbine
V
Force ‘F’
-V
CHANGE IN MOMENTUM = (m x v) – (- m x v)
= 2 x (m x v)
Force ‘F’ α 2 x (m x v)
L&T MHI TURBINE GENERATORS
22. Working Principal Of Steam Turbine
v v sinθ
θ
v cosθ
F
-v cosθ CHANGE IN MOMENTUM = (mvcosθ) – (- mvcos θ)
θ -v
= 2 x (mvcos θ)
-v sinθ
Force ‘F’ α 2 (mvcos θ)
L&T MHI TURBINE GENERATORS
23. WORKING PRINCIPLE OF STEAM TURBINE
ROTATING •Steam at high pressure & temperature is made to pass
BLADE ROW through a set of fixed blade mounted on stationary
body in Casing.
•There will be drop in pressure of the steam across the
fixed blade resulting to very high steam velocity at the
FIXED
exit of fixed blade
BLADE
ROW •The high velocity steam then passes through another
DRIVING row of blades mounted on the rotor shaft
STATIONARY FORCE
BODY/CASING
•The impingement of high velocity steam generates
driving force on these rotating blades which rotate the
rotor.
• A set of fixed blades and rotating blades mounted on
rotor is called stage of turbine. Depending on steam
condition and power output, number of stages in
steam turbine is decided
L&T MHI TURBINE GENERATORS
ROTOR
24. Main Components of Steam Turbine
1 2 3 4 5 6 7
1
1
8
1. Fixed/Guide Blades 5. Gland seals 9. Governing System
2. Moving Blades 6. Bearing & bearing Pedestal 10.Lub. System
3. Casing 7. Coupling 11.Drain system
4. Rotor 8. Stop & Control Valves 12. C&I System
L&T MHI TURBINE GENERATORS
25. Rotor is vital element involved in
conversion of kinetic energy of
steam into mechanical energy of
rotation.
Run at high speed depending upon
grid frequency (50Hz,60 Hz).
Subjected to sever stresses i.e.
Centrifugal forces, thermal
L&T MHI TURBINE GENERATORS
28. SHOP WELD PLAN
Welding engineering department issues shop weld plan to Planning,
Shop floor where actual job is going on.
The name self indicate that it is a welding plan of actual job – vessel and
it guides to shop floor supervisor and welder that which WPS/PQR shall
use for particular seam.
Shop welding plan is related to the welding of the job. It provided all the
information regarding weld seam to the welder, as he must well aware of
all required conditions of the welding each seam.
If company is working under ISO-9000. It has to keep all the activities to
be documented Hence the required documents are made.
L&T MHI TURBINE GENERATORS
29. SWP gives the following information regarding the job as related they all seem
to be welded.
◦ Seam numbers
◦ Base metal / P-Number
◦ Joint Detail
◦ Weld process
◦ Layer
◦ WPS No.
◦ PQR No.
◦ F - Number
◦ Pre heat temperature
◦ Inter pass temperature
◦ Position
◦ Customer
◦ Inspection agency
◦ Mfg. Code
◦ Post weld heat treatment
◦ Special notes.
L&T MHI TURBINE GENERATORS
30. TEST PLAN
Welding engineering department issues test plan to planning, NDT, and
shop floor for a particular job which is under production.
In testing plan list of test for particular seam number is given with
reference of ASME and customer specification and also given detail of
production weld test coupon such as type of testing (destructive & Non-
destructive), quantity thickness, For which seam no. required the PTC that
is also described.
After completion of welding of all seams particular test is carried out as per
testing plan.
With reference of Test plan the shop supervisor is offered the seam for
testing to NDT department.
L&T MHI TURBINE GENERATORS
31. The following manners are given in the test plan:
• Seam wise stage no. and stage description. For testing.
• Extent
• Specification
• Acceptance standard
• Production Test Coupon
o Seam No,
o Thickness
o NDT
o Chem. Analysis.
o Transverse tensile’
o All weld tensile
o Impact test
o Micro/Macro test
• Hardness
• Inspection agencies
Hydraulic/pneumatic/leak test and other tests TURBINE GENERATORS
L&T MHI
32. QUALITY CONTROL PLAN
QUALITY CONTROL PLAN
Order: MODEL Drawing No.: Control No.: RJ/GEN/QAP-043
Part No: As per drawing Part Name: GENERATOR STATOR FRAME Dt. 10.06.211
QC Flow Chart Type : Project Items Project Name : Generator Stator Frame Ref. Doc.: Nil
Manufacturing Relevant
Sr. L&T MHI
and Inspection Control Item Document And Frequency Supplier QC Sign Quality Record Remarks
No. TG
Process Procedure
T-Side Block Assy (A42B327)
1 Receiving Mill Sheet Visual Purchase 100% W R/W Mill TC Material All plates shall be
inspection and & Dimension Specification As identification UT tested as
material per drawing JV record mentioned in JV
conformation Standard std. &
identification (P.
No etc. must be
there)**
2 Fit-up & Groove shape, As per drawing 100% W W Fit Up Report All line items as
marking Angle, per drawing no.
inspection Misalignment, A42B327 shall be
Cleaning (Groove inspected at this
Surface) stage.
3 Welding Welder, Welding ASME Sec. IX 100% W … … Welding spatters,
electrode, A35G107 A- under cut etc.
Preheating, KOSHI-R04702 must not be there.
Current/voltage
4 PT test of Flaw detection A-SIKI- 100% W W PT Report For PT, Solvent
completed weld method, ROWB007 removal method
Situation of flaw shall be applied
detection surface
5 Dimensional & Visual, As per drawing 100% W W Dimensional
visual Dimension, Report
inspection Surface
roughness L&T MHI TURBINE GENERATORS
33. E-Side Block Assy (A42B326)
6 Receiving Mill Sheet Visual Purchase 100% W R/W Mill TC Material All plates shall be
inspection and & Dimension Specification identification UT tested as
material As per record mentioned in JV
conformation drawing JV std. &
Standard identification (P.
No etc. must be
there)**
7 Fit-up & Groove shape, As per 100% W W Fit Up Report All line items as
marking Angle, drawing per drawing no.
inspection Misalignment, A42B327 shall be
Cleaning (Groove inspected at this
Surface) stage.
8 Welding Welder, Welding ASME Sec. IX 100% W … … Welding spatters,
electrode, A35G107 A- under cut etc.
Preheating, KOSHI- must not be
Current/voltage R04702 there.
9 PT test of Flaw detection A-SIKI- 100% W W PT Report For PT, Solvent
completed method, Situation ROWB007 removal method
weld of flaw detection shall be applied
surface
10 Dimensional & Visual, As per 100% W W Dimensional
visual Dimension, drawing Report
inspection Surface
roughness
L&T MHI TURBINE GENERATORS
34. Centre Block Assy (A35F896)
11 Receiving Mill Sheet Visual Purchase 100% W R/W Mill TC Material All plates shall be
inspection and & Dimension Specification identification UT tested as
material As per record mentioned in JV
conformation drawing JV std. &
Standard identification (P.
No etc. must be
there)**
12 Fit-up & Groove shape, As per 100% W W Fit Up Report All line items as
marking Angle, drawing per drawing no.
inspection Misalignment, A42B327 shall be
Cleaning (Groove inspected at this
Surface) stage.
13 Welding Welder, Welding ASME Sec. IX 100% W … … Welding spatters,
electrode, A35G107 A- under cut etc.
Preheating, KOSHI- must not be
Current/voltage R04702 there.
14 PT test of Flaw detection A-SIKI- 100% W W PT Report For PT, Solvent
completed method, Situation ROWB007 removal method
weld of flaw detection shall be applied
surface
15 Dimensional & Visual, As per 100% W W Dimensional
visual Dimension, drawing Report
inspection Surface
roughness
L&T MHI TURBINE GENERATORS
35. Frame Block Docking Assy (A35G121)
16 Receiving Mill Sheet Visual & Purchase 100% W R/W Mill TC Material All plates shall be
inspection and Dimension Specification As identification UT tested as
material per drawing JV record mentioned in JV
conformation Standard std. &
identification (P.
No etc. must be
there)**
17 Fit-up & Groove shape, As per drawing 100% W W Fit Up Report All line items as
marking Angle, per drawing no.
inspection Misalignment, A42B327 shall be
Cleaning (Groove inspected at this
Surface) stage.
18 Welding Welder, Welding ASME Sec. IX 100% W … … Welding spatters,
electrode, A35G107 A- under cut etc.
Preheating, KOSHI-R04702 must not be there.
Current/voltage
19 PT test of Flaw detection A-SIKI- 100% W W PT Report For PT, Solvent
completed weld method, Situation ROWB007 removal method
of flaw detection shall be applied
surface
20 Final Visual, Dimension, As per drawing 100% W W Dimensional
Dimensional & Surface roughness Report
visual
inspection
21 Surface coating Type of coat, As per drawing 100% W R Painting Report
& painting coating thickness and
Specification
Abbreviation :- W- Witness R- Review
This quality control flow chart & QCL shall be revised as an when required.
Prepared By Checked By Approved By
L&T MHI TURBINE GENERATORS
36. BILL OF MATERIAL
BILL OF MATERIAL
PROJECT NAME:- GENERATOR STATOR FRAME
Unit Total
Sr Part THK in Qty
Description Material Weight Weight Remarks
No. No. mm unit
(Kg) (Kg)
1 001 Shell Plate 5 SS400P 4 11.50 46.00
2 002 Cooler Adapter 10 SS400P 2 4.8 9.50
3 003 Lead box 10 SS400P 1 5.40 5.40
4 004 Frame Foot 10 SS400P 4 1.25 5.00
5 005 Frame Foot Support 1 8 SS400P 8 0.075 0.06
6 006 Frame Foot Support 2 8 SS400P 12 0.042 0.50
7 007 End Plate 10 SS400P 2 2.5 5.00
8 008 Rib Plate 10 SS400P 2 1.75 3.50
9 009 Flange 10 SS400P 6 0..67 0.40
10 010 Trunion 10 SS400P 4 0.25 1.00
11 011 Man hole 10 SS400P 4 1.25 5.00
12 012 support 10 SS400P 4 2.5 10.00
13 013 Bore Ring 8 SS400P 6 0.083 2.50
14 014 Boring Support 10 SS400P 4 0.025 0.10
15 015 Lifting Lug 10 SS400P 4 0.0375 0.15
Total Weight 97.24
L&T MHI TURBINE GENERATORS
37. STATOR FRAME MODELFABRICATION SEQUENCE
PROCEDURE
Stator Frame Model fabrication Sequence Procedure
Sr.
Description Planned Date Actual Date Remarks
No.
1 Material Selection 5/3/2012 6/3/2012
2 Marking Of Shell 6/3/2012 8/3/2012
3 Long Seam Marking 7/3/2012 10/3/2012
4 Long Seam Welding On Shell 7/3/2012 10/3/2012
5 Circ. Seam Marking 8/3/2012 10/3/2012
6 Circ. Seam Welding On Shell 8/3/2012 11/3/2012
7 Gas Cutting Of T-Side And E-Side 9/3/2012 12/3/2012
8 Grinding Of Cutting Parts 10/3/2012 13/3/2012
9 Cnc Cutting Of E-Side And T-Side Parts 12/3/2012 153/2012
10 Grinding Of E-Side And T-Side Parts 13/3/2012 15/3/2012
11 Cnc Cutting Of Flanges, Manhole, Trunnion 14/3/2012 16/3/2012
12 Grinding Of Flanges, Manhole, Trunnion 14/3/2012 18/3/2012
13 Marking Of Bore Ring And Rib Plates 15/3/2012 19/3/2012
14 Cnc Cutting Of Bore Ring And Rib Plates 16/3/2012 20/3/2012
15 Grinding Of Bore Ring And Rib Plates 19/3/2012 21/3/2012
L&T MHI TURBINE GENERATORS
38. 16 Set-Up And Assembly Of E-Block Parts 20/3/2012 22/3/2012
17 Welding Of E-Block Parts 21/3/2012 23/3/2012
18 Set-Up And Assembly Of T-Block Parts 22/3/2012 24/3/2012
19 Welding Of T-Block Parts 23/3/2012 24/3/2012
20 Full Welding Of E-Block With Shell 24/3/2012 24/3/2012
21 Full Welding Of T-Block With Shell 24/3/2012 27/3/2012
22 Marking Of outer Components On Shell 26/3/2012 27/3/2012
23 Gas Cutting Of Components 27/3/2012 28/3/2012
24 Assembly Of Bore Ring And Rib Plates 28/3/2012 28/3/2012
25 Horizontal Docking Of Structure 29/3/2012 29/3/2012
26 Tack Weld Of Structure 29/3/2012 29/3/2012
27 Full Welding Of Structure With Shell 29/3/2012 30/3/2012
28 Fit-Up Of Outer Components 30/3/2012 30/3/2012
29 Welding Of Components 31/3/2012 2/4/2012
30 Marking Of Frame Foot And Its Supports 31/3/2012 2/4/2012
31 Welding Of Frame Foot And Its Supports 31/3/2012 3/4/2012
32 End Plate Fit-Up 2/4/2012 3/4/2012
L&T MHI TURBINE GENERATORS
40. BOX PLOT PLAN OF GENERATOR STATOR FRAME
Drawing Material CNC cutting of Fit-up
E-BLOCK
Fabrication 7/3/2012 Selection parts and assembly
8/3/2012 grinding 16/3/2012
14/3/2012
BOX PLOT PLAN OF
GENERATOR
T-BLOCK Fit-up STATOR FRAME MODEL
Fabrication Drawing Material CNC cutting
Selection assembly
7/3/2012 of parts and
8/3/2012
17/3/2012
grinding
14/3/2012
Full Welding of
Gas cutting Final Fit-up Outer Parts
C-BLOCK Material of Shell, of E and T- Full Welding 28/3/2012 Support
Fabrication Drawing Selection Marking of 24/3/2012 cutting and
Grinding on block
7/3/2012 8/3/2012 E and T cutting part welding
18/3/2012
block side 17/3/2012 7/4/2012
12/3/2012
Inner side Marking of Vertical
Fabrication Drawing Borering CNC cutting Assembly of Final Fit Of
of Borering and 7/3/2012 and Rib of Borering Borering and Parts
Rib plate plate and Rib plate 18/3/2012 Blasting
8/3/2012 Rib plate 9/4/2012
16/3/2012
Flanges/ manhole/ CNC
Material Marking on
trunnion Drawing cutting of shell Fit-up on Painting
Selection
Fabrication 7/3/2012 external 9/4/2012
8/3/2012 21/3/2012 shell
items 22/3/2012
16/3/2012
Frame foot/End Material
Drawing Selection CNC cutting Marking, Fit-up Packing
plate
7/3/2012 8/3/2012 of external Set-up 24/3/2012 10/4/2012
Fabrication
items 22/3/2012
19/3/2012
FABRICATION HRS: 34 DAYS Dispatch
TOTAL WEIGHT: 97.24 KGS 10/4/2012
L&T MHI TURBINE GENERATORS
41. PROCESS PLANNING SHEET
Process Planning Sheet PPS. No. Methods Eng. ref. Rev. No. Page No.
No.
FAB 0 0 Total:
Client Part Name Rev. NO. Drawing No. Material Facility
Projec Stator frame model 0 SS400 Nil
t
Order Process Description Process No. MHI/MELCO Date Estimated Time
No. Reference No.
1 Fabrication. 01# 0 24-Feb-10 34 days
Opn. Process IMAGES Target day Remarks
No.
1 Documentation
Fabrication Drawings 5 REF.OF ACTUAL
DRG.
Inspection record formats
2 Technical standards & work procedures
WPS 1
QCL AND QAP 1
3 MARKING OF SHELL
Marking of Centre line of shell by using the 1
divider and punch mark. LONG SEAM
MARKING and CIRC. SEAM MARKING
4 Cutting & edge preparation
Gas cut the of shell as per e-block and t-block 1
dimensions
5 CNC CUTTING OF E-SIDE AND T-SIDE
PARTS
Cutting as per design requirement and grinding 2
of all cut-out of parts after cutting.
L&T MHI TURBINE GENERATORS
42. 6 CNC CUTTING OF FLANGES, MANHOLE, TRUNNION
Cutting as per design requirement and grinding of all cut-out of parts after 2
cutting.
7 MARKING OF BORE RING AND RIB PLATES
Marking of the rib plate as per the design and cut-out the plate in CNC 2
machine then grinding the all parts.
8 SET-UP AND ASSEMBLY OF E-BLOCK PARTS
all cut-out parts are set-up properly and assemble the structure of E-block 2
9 WELDING OF E-BLOCK PARTS
All parts in joint by the GTAW process as per the welding design
10 SET-UP AND ASSEMBLY OF T-BLOCK PARTS 3
All cut-out parts are set-up properly and assemble the structure of T-block
11 WELDING OF E-BLOCK PARTS
All parts is joint by the GTAW process as per the welding design 1
12 FULL WELDING OF E-BLOCK WITH SHELL
The E-block structure is welded with shell by using GMAW process. 1
13 FULL WELDING OF T-BLOCK WITH SHELL
The T-block structure is welded with shell by using GMAW process. 1
14 FIT-UP OF OUTER COMPONENTS
Fit-Up THE FLANGES, MANHOLE, TRUNNIONS IN THE OUTER SIDE OF 1
SHELL
15 WELDING OF COMPONENTS
Full welding of components by using GTAW process. 1
L&T MHI TURBINE GENERATORS
43. 16 MARKING OF FRAME FOOT AND ITS
SUPPORTS
MARKING OF FRAME FOOT AND ITS SUPPORTS 1
ON THE SHELL
17 WELDING OF FRAME FOOT AND ITS
SUPPORTS
All cut-out parts of frame foot and supports 1
welded by GMAW welding process.
18 END PLATE FIT-UP AND WELDING
Leveling of shell and end plate with respect of 1
design and full welded
19 VISUAL INSPECTION
After all welding complete visual check 1
inspection
20 DISTORTION REMOVAL
Remove all NDT points by grinding and chipping 1
hammer.
21 MARKING OF SUPPORTS
LEVELLING OF STATOR FRAME
Marking and leveling of supports then full
welding
22 CLEANING AND SURFACE PREPARATION
CLEANING AND SURFACE PREPARATION OF ALL 1
WELDED PARTS AND COMPLETE SHELL.
23 BLASTING
BLASTING USING SMALL PRESSURE APPLIED 1
24 PAINTING
PAINTING OUTER AND INNER SIDE 1
BYMANUALLY.
25 DISPATCH 1
26 PACKING 1
L&T MHI TURBINE GENERATORS
44. SOME SPECIFIC TERMS USED IN WPS
Welding Variables
◦ Essential variables.
◦ Supplementary essential variable.
◦ Non-essential variables.
P – Numbers:
◦ To reduce the number of welding procedure qualification required, base
metals have been assigned P – Numbers.
F – Numbers:
◦ F Numbers are used for filler metal designation and grouping of electrodes &
welding rods.
◦ It is based essentially on their usability characteristics.
A – Numbers:
◦ A – Numbers are used to identify the weld metal chemical composition of
ferrous metals.
L&T MHI TURBINE GENERATORS
45. CONT…
Joints
• The WPS describe some variable like groove design ,backing etc.,
Base Metals
• It is essential variables for all welding processes.
• A change in a base metal thickness beyond the range qualified in
table (As per qw-4541) requires the requalification of WPS.
Filler Metal
• Filler metal should be selected which is compatible to base metal
chemical composition (Sec.II_A/B). They must have same/similar
chemical composition.
• For filler metal chemical composition, we have the refer ASME SEC-II
C.
L&T MHI TURBINE GENERATORS
46. CONT…
Position
• Position is supplementary essential variable.
• 1G, 2G, 3G, etc., are different types of welding positions (as per QW-461
Sec IX)
Preheat
• It can be determine from ASME SEC VIII, Division – 1, Appendix – R.
PWHT
• ASME SEC – VIII, DIV- I, Per. UCS-56 describes PWHT temperature and
time range for specific material with respect to P – Number.
L&T MHI TURBINE GENERATORS
47. CONT…
Gases
• Three types of gases are described in WPS.
o Shielding gas.
o Backing gas.
• Trailing gas
Electrical Characteristics
• ELECTRICAL CHARACTERISTICS (QW – 409)
• We have to write Current, Polarity, and Voltage as electrical
characteristics.
Technique
• It is determined manually with respect to joint design, material type
material thickness etc
L&T MHI TURBINE GENERATORS
48. WPS
QW-482 WELDING PROCEDURE QUALIFICATION (WPS)
Supporting
WPS NO: 1 DATE: 12-3-2012 -
PQR No(s)
Welding
Revision: RO SMAW
Process
Date: 12-3-2012 Type MANUAL
JOINTS (QW-402)
Groove Design As per Drg.
Backing: (Yes/No) Yes
Backing Material (type) Base metal/Weld metal
Other -
BASE METALS (QW-403)
MATERIAL 1 MATERIAL 2
P. No. 1 P. No. 1
Group No. 1 Group No. 1
Specification/Grade - Specification/Grade -
Thickness Range: (mm):5 to 200 mm
Base Metal: ss-400 Groove: all Fillet ANY
Deposited weld thickness: 200 mm MAX SMAW 6 Fillet ANY
Other: 13 mm maximum weld deposition in single pass
L&T MHI TURBINE GENERATORS
49. FILLER METALS(QW-404)
Process SMAW
F. No. 4
A. No. 1
SFA
Spec No.
5.1
AWS No. (class) E 7018
Φ 2.5,
Size of filler metals (mm) 3.15,
4,
Electrode Flux (class) NA
Flux Trade name NA
Consumable Insert NA
Chemical composition NA
Other NA
POSITIONS (QW-405)
Process(es): SMAW
Position of Groove: ALL F-Flat
Welding Progression: uphill
Position of Fillet: ALL H-Horizontal
V-Vertical
Other None
O-Overhead
PREHEAT (QW-406)
Preheat Temp. (Min):ºC 150 ºC
Interpass Temp. (Max):ºC 350 ºC
Preheat Maintenance: During Welding
L&T MHI TURBINE GENERATORS
Other NA
50. POST WELD HEAT TREATMENT (QW-407) ELECTRICAL CHARACTERISTICS(QW-409)
Type of PWHT Current(AC or Dc) DC
TEMP. Range: ºC Polarity (EN or EP) EP
Amps (Range) 70-155 A
Soaking/Holding Time
Voltage (Range) 20-30 V
Rate of Heating Tungsten Type & Size NA
Rate of Cooling Mode of Metal Transfer NA
NA
Others: Electrode wire feed
GASES (QW-408)
Flow
% Composition
Rate(LPM)
Shielding Gas NA NA
Backing/Purging Gas NA NA
Trailing Gas NA NA
Other NA NA
TECHNIQUE (QW-410)
String/Weave Bead Gas Cup Size NA
Travel Speed (range) Cont. Tube Work Dist. NA
Multiple/Single Electrode Multi/Single Pass (per side) Multi Pass
Oscillation NA
Closed to out chamber NA
Cleaning By wire brush
Method of Gouging/Back chip By grinding
Other NA
L&T MHI TURBINE GENERATORS
51. Filler Metal Current
Max Min
Flux Travel Speed
Weld Dia Volt heat Bead
Process Trade Range
Type & Amp. Range input
Layer Class (mm Name Length
Polarity Range (mm/min)
) (KJ/mm) (mm)
2.5 NA DCEP 70-90 20-30 - - -
ALL PASS
E-7018 3.15 NA DCEP 100-140 20-30 - - -
SMAW
4 NA DCEP 155-190 20-30 - - -
L&T MHI TURBINE GENERATORS
52. QW-482 WELDING PROCEDURE SPECIFICATION (WPS)
Supporting PQR
WPS NO: 3 DATE: 12-3-2012 -
No(s)
Revision: RO Welding Process GMAW
Date: 12/3/2012 Type Machine
JOINTS (QW-402)
Groove Design As per Drg.
Backing: (Yes/No) with and without
Backing Material (type) Base metal/Weld metal
Other -
BASE METALS (QW-403)
MATERIAL 1 MATERIAL 2
P. No. 1 P. No. 1
Group No. 1 Group No. 1
Specification/Grade SS-400 Specification/Grade SS-400
Thickness Range: (mm)
5mm to 200
Base Metal: Groove Fillet ANY
mm
5 mm to 200
Deposited weld thickness GMAW Fillet ANY
mm
Other: None
L&T MHI TURBINE GENERATORS
53. FILLER METALS(QW-404)
Process GMAW
F. No. 6
A. No. 1
Spec No. 5.28
AWS No. (class) ER 70S 6
Size of filler metals (mm) Φ 1.6
Electrode Flux (class) Na
Flux Trade name NA
Consumable Insert NA
Chemical composition NA
Other NA
POSITIONS (QW-405)
Process(es): GMAW
Position of Groove: all
F-Flat
Welding Progression: NA
Position of Fillet: F,H,V,O H-Horizontal
V-Vertical
Other None
O-Overhead
PREHEAT (QW-406)
Preheat Temp. (Min):ºC 150*
Interpass Temp. (Max):ºC 350*
Preheat Maintenance: During welding
Other NA
L&T MHI TURBINE GENERATORS
Prepared By Reviewed By Approved By
54. WPS No:
POST WELD HEAT TREATMENT (QW-407) ELECTRICAL CHARACTERISTICS(QW-409)
Type of PWHT - Current(AC or Dc) DC
TEMP. Range: ºC - Polarity (EN or EP) EP
- Amps (Range) -
Soaking/Holding Time
- Voltage (Range) -
Rate of Heating - Tungsten Type & Size NA
Rate of Cooling - Mode of Metal Transfer SPRAY
- NA
Others: Electrode wire feed
-
GASES (QW-408)
Gas % Composition Flow Rate(LPM)
Shielding Gas Ar-Co2 80% to 20% 14 to 24
Backing/Purging Gas NA NA NA
Trailing Gas NA NA NA
Other NA NA NA
TECHNIQUE (QW-410)
String/Weave Bead String Gas Cup Size NA
30-200 Cont. Tube Work
Travel Speed (range) 15-22mm
mm/min Dist.
Multi/Single
Multiple/Single Electrode Single Multi pass
Pass (per side)
Oscillation None
Closed to out chamber None
Cleaning With wire brush
Method of Gouging/Back chip -
Other - L&T MHI TURBINE GENERATORS
55. V
Filler Metal Current o Min
Flux lt Travel Speed Max
Weld R Bead
Process Trade Range heat input
Layer Dia a Length
Name Type & Amp. (mm/min)
Class n (KJ/mm)
(mm) Polarity Range
g (mm)
e
1
8
ER 70S 30-
- GMAW 1.6 - DCEP 180-280 - -
6 200mm/min
3
0
Prepared by Reviewed by Approved by
L&T MHI TURBINE GENERATORS
56. QW-482 WELDING PROCEDURE SPECIFICATION (WPS)111
DATE: 12-3- Supporting PQR
WPS NO: 5 -
2012 No(s)
Revision RO Welding Process GTAW
Date 12-3-2012 Type Manual
JOINTS (QW-402)
Groove Design As per Drg.
Backing: (Yes/No) No
Backing Material (type) NA
Other -
BASE METALS (QW-403)
MATERIAL 1 MATERIAL 2
P. No. 4 P. No. 4
Group No. 1,2 Group No. 1,2
Specification/Grade - Specification/Grade -
Thickness Range: (mm)
Base Metal: Groove (5-200mm) Fillet ANY
Deposited weld thickness GTAW (5-200mm) Fillet ANY
Other: None
L&T MHI TURBINE GENERATORS
57. FILLER METALS(QW-404)
Process GTAW
F. No. 6
A. No. 1
Spec No. 5.18
AWS No. (class) ER 70S-2
Size of filler metals (mm) Φ 1.6, 2.4
Electrode Flux (class) NA
Flux Trade name NA
Consumable Insert NA
Chemical composition NA
Other NA
POSITIONS (QW-405)
Process(es): GTAW
F-Flat
Position of Groove: ALL
Welding Progression: Uphill H-Horizontal
Position of Fillet: ALL
V-Vertical
Other None O-Overhead
L&T MHI TURBINE GENERATORS
58. PREHEAT (QW-406)
Preheat Temp. (Min):ºC -
Interpass Temp. (Max):ºC -
Preheat Maintenance: -
Other -
WPS No:
POST WELD HEAT TREATMENT (QW-407) ELECTRICAL CHARACTERISTICS(QW-409)
Type of PWHT - Current(AC or Dc) DC
TEMP. Range: ºC - Polarity (EN or EP) EN
- Amps (Range) -
Soaking/Holding Time
- Voltage (Range) -
Rate of Heating - Tungsten Type & Size EWTh-2
Rate of Cooling - Mode of Metal Transfer NA
Other - Electrode wire feed NA
GASES (QW-408)-
Gas % Composition Flow Rate(LPM)
Shielding Gas Argon 99.995% 8-12
Backing/Purging Gas NA NA NA
Trailing Gas NA NA NA
Other NA NA NA
L&T MHI TURBINE GENERATORS
59. TECHNIQUE (QW-410)
String/Weave Bead String Gas Cup Size Φ 6.0-10.0mm dia
Travel Speed (range) NA Cont. Tube Work Dist. NA
Multi/Single Pass (per
Multiple/Single Electrode Single Multi Pass
side)
Oscillation None
Closed to out chamber None
Cleaning With wire brush
Method of Gouging/Back chip By grinding
Other -
Filler Metal Current
Flux Travel Max Min
Trad Speed heat
Weld Volt Bead
Process Dia e Type & Amp. Range input
Layer Class Range Length
(mm) Nam Polarity Range (mm/mi (KJ/mm
e n) ) (mm)
Root GTAW ER 80S-G 2.4,2.5 NA DCEN 80-120 10-18 - - -
Rest GTAW ER 80S-G 2.4,2.5 NA DCEN 110-180 10-18 - - -
All SMAW - - NA - - - - - -
All SMAW - - NA - - - - - -
Prepared by Reviewed by Approved by
L&T MHI TURBINE GENERATORS
63. BORE RING
• bore ring is mainly use for the supporting the core bolt and
balancing the rotor All fabrication process complete after send to
assembly shop.
Clamping
arrangement
Outer ring
Inner ring
L&T MHI TURBINE GENERATORS
64. After Leveling & centering of bore ring do tack weld elastic plate to bottom Frame plate.
Then place new Frame Plate Above it. Do leveling & centering of same frame plate. Do tack weld
it with elastic plate below it. Additional temporary support can also be utilize.
Then place next `Bore ring + Elastic Plate` and repeat the above process.
And so on complete the Centre block assembly fit-up. L&T MHI TURBINE GENERATORS
65. FRAME FOOT
• Frame foot is use for the foundation of the generator.
L&T MHI TURBINE GENERATORS
66. LEAD BOX
• Lead box mainly use the Supply the lead outside inside
L&T MHI TURBINE GENERATORS
67. PROCESS
Marking frame plate
Setting end plate (T side)
Mounting ribs of T side block (1st set)
Mounting frame plate of T side block
Mounting ribs of T side block (2nd set)
Mounting 1st frame plate of center block
Partial welding ribs of T side block (1st set)
Mounting shell plate of T side block
Gas cutting hole for lead box adapter
Mounting of 1st bore ring
L&T MHI TURBINE GENERATORS
68. CONT…
Mounting of 2nd frame plate of center block
Welding inside frame
Cleaning welding portion, Painting of angle, pipe and flexible beam
support
Mounting shell plate of center block
Welding shell plate center block
Mounting lead box adapter
Welding lead box adapter
L&T MHI TURBINE GENERATORS
69. TRUNNION
• Lifting the generator
L&T MHI TURBINE GENERATORS
70. COOLER ADAPTER
• Cooler adapter is mainly use to cooling the steam.
L&T MHI TURBINE GENERATORS
71. PROCESS
Marking frame plate
Setting end plate (E side)
Mounting ribs of E side block (1st set)
Mounting frame plate of E side block
Mounting shell plate of E side block
Mounting ribs of E side block (1st set)
Gas cutting hole for cooler adapter
Welding inside frame in flat position
Turnover
Welding inside frame in flat position
L&T MHI TURBINE GENERATORS