This document provides an overview of boiler maintenance and operation. It discusses the importance of maintaining proper feed water quality, boiler water quality, fuel quality, and combustion. It outlines daily, weekly, monthly, quarterly, half-yearly, and yearly maintenance tasks. Key aspects covered include cleaning filters, blowdowns, lubricating parts, checking safeties, and monitoring combustion efficiency. The document also discusses best practices for data management and offers specialized maintenance services from Thermax such as equipment health checks, remaining life assessments, and annual service contracts.
The Presentation describes the basics about the Efficiency and performance of a steam based power plant. It also describes how the heat rate of the power plant is important from the point of view of fuel savings.
The Presentation discusses the Air-Heater Performance Indices and the Boiler Performance calculation. One can Calculate the air ingress in the air-heater and the boiler and losses incurred thereby. The presentation also describes in details about the boiler efficiency and its calculation.
This document describes the methodology for conducting an energy audit of a turbine cycle. It discusses collecting data on steam and water cycle parameters, measuring turbine efficiency, identifying factors that affect heat rate, and evaluating the performance of feedwater heaters. The key steps involve collecting design specifications and operational data, measuring temperatures, pressures, flows, and outputs, calculating turbine efficiency using enthalpy methods, identifying reasons for deviations from design performance, and analyzing factors like steam conditions, condenser performance, heat exchanger fouling that affect the heat rate.
This document contains:
1) A block diagram of the plant Rankine cycle showing the main steam, high pressure turbine, intermediate pressure turbine, and low pressure turbine.
2) Heat and mass balance diagrams for the high pressure and low pressure sections of the plant, showing temperatures, pressures, enthalpies, and mass flows throughout the system.
3) A section on important heat rate formulas, defining heat rate as the heat input required to produce a unit of electrical output, and providing the specific guaranteed and actual heat rates for the plant.
This document discusses cogeneration and improving energy efficiency in sugar mills. It provides information on:
1) Cogeneration involves the combined production of electrical power and useful thermal energy from a common fuel source. This allows for better utilization of resources and independence in power and steam.
2) Major advantages of cogeneration include lower production costs, quick return on investment, and ability to use biomass fuels. It also provides a solution to power problems when hydropower availability is low.
3) Case studies show potential energy savings through retrofitting with high-pressure boilers, improving control systems, reducing downtime, and acquiring best available technologies for new projects.
La recupercion de Energia termica que eliminan los gases de escape a la atmotfera de las turbinas o generadores de combustion interna. Pueden ser aprovechadas para producir vapor de media presion y ser utilizadas en la industria. La cogeneracion es una importante alternativa para generar grandes ahorros de combustible. Te invito a investigar y tomar las mejores decisiones para tus proyectos de ahorro energetico.
Improve plant heat rate with feedwater heater controlHossam Zein
This document discusses improving thermal efficiency in power plants by optimizing feedwater heater performance and control. It contains the following key points:
1. Small deviations in heat rate can have large impacts on annual fuel costs, so precise control of feedwater heater levels is important for efficiency. Poor level control leads to heat losses.
2. Feedwater heaters use extraction steam to preheat feedwater and improve boiler efficiency. Accurate level control ensures optimal heat transfer. Instrument errors can degrade performance.
3. Two case studies show how unreliable level controls increased annual fuel costs by $243,000 in one plant and led to excessive heater bypasses in another. Updating controls provided paybacks of 1
The Presentation describes the basics about the Efficiency and performance of a steam based power plant. It also describes how the heat rate of the power plant is important from the point of view of fuel savings.
The Presentation discusses the Air-Heater Performance Indices and the Boiler Performance calculation. One can Calculate the air ingress in the air-heater and the boiler and losses incurred thereby. The presentation also describes in details about the boiler efficiency and its calculation.
This document describes the methodology for conducting an energy audit of a turbine cycle. It discusses collecting data on steam and water cycle parameters, measuring turbine efficiency, identifying factors that affect heat rate, and evaluating the performance of feedwater heaters. The key steps involve collecting design specifications and operational data, measuring temperatures, pressures, flows, and outputs, calculating turbine efficiency using enthalpy methods, identifying reasons for deviations from design performance, and analyzing factors like steam conditions, condenser performance, heat exchanger fouling that affect the heat rate.
This document contains:
1) A block diagram of the plant Rankine cycle showing the main steam, high pressure turbine, intermediate pressure turbine, and low pressure turbine.
2) Heat and mass balance diagrams for the high pressure and low pressure sections of the plant, showing temperatures, pressures, enthalpies, and mass flows throughout the system.
3) A section on important heat rate formulas, defining heat rate as the heat input required to produce a unit of electrical output, and providing the specific guaranteed and actual heat rates for the plant.
This document discusses cogeneration and improving energy efficiency in sugar mills. It provides information on:
1) Cogeneration involves the combined production of electrical power and useful thermal energy from a common fuel source. This allows for better utilization of resources and independence in power and steam.
2) Major advantages of cogeneration include lower production costs, quick return on investment, and ability to use biomass fuels. It also provides a solution to power problems when hydropower availability is low.
3) Case studies show potential energy savings through retrofitting with high-pressure boilers, improving control systems, reducing downtime, and acquiring best available technologies for new projects.
La recupercion de Energia termica que eliminan los gases de escape a la atmotfera de las turbinas o generadores de combustion interna. Pueden ser aprovechadas para producir vapor de media presion y ser utilizadas en la industria. La cogeneracion es una importante alternativa para generar grandes ahorros de combustible. Te invito a investigar y tomar las mejores decisiones para tus proyectos de ahorro energetico.
Improve plant heat rate with feedwater heater controlHossam Zein
This document discusses improving thermal efficiency in power plants by optimizing feedwater heater performance and control. It contains the following key points:
1. Small deviations in heat rate can have large impacts on annual fuel costs, so precise control of feedwater heater levels is important for efficiency. Poor level control leads to heat losses.
2. Feedwater heaters use extraction steam to preheat feedwater and improve boiler efficiency. Accurate level control ensures optimal heat transfer. Instrument errors can degrade performance.
3. Two case studies show how unreliable level controls increased annual fuel costs by $243,000 in one plant and led to excessive heater bypasses in another. Updating controls provided paybacks of 1
Heaters are used in refineries to raise the temperature of process fluids. There are different types of heaters classified by design and firing method. Key components include tubes, burners, and sections for convection and radiation. Proper draft, excess air, and complete combustion are important for safe and efficient operation. Regular checks help ensure heaters are functioning properly and identify any issues.
The document outlines the steps to safely shut down a 210 MW power generation unit for overhaul and maintenance. It involves gradually reducing boiler steam parameters and turbine load over several steps by cutting mills and heaters, before finally tripping the turbine. Key steps include maintaining temperature differences, ensuring availability of emergency equipment, monitoring parameters, and opening drains. The shutdown is completed by venting the boiler drum and stopping auxiliary systems once drum pressure is reduced.
The document describes the control system of a gas turbine. It discusses the various control loops for startup control, speed control, temperature control and shutdown control. It explains how fuel control is done through fuel stroke reference signals and describes the liquid and gas fuel control systems. It also discusses temperature reference selection, inlet guide vane modulation and dual fuel control functionality.
Boiler recommissioning procedure after capital overhaul Manohar Tatwawadi
In a thermal power plant, boiler overhauling is generally done yearly. The presentation highlights the procedure for the re-commissioning of the boiler after capital overhaul.
The document discusses Heat Recovery Steam Generators (HRSGs). HRSGs recover heat from gas turbine exhaust to produce steam. They operate in either combined cycle mode, where steam drives a turbine, or cogeneration mode where steam is used for industrial processes. HRSGs contain evaporator, economizer, and superheater sections to produce steam. They can also include reheaters, deaerators, and preheaters. HRSGs come in natural circulation, forced circulation, or once-through designs and can be unfired, fired, supplementary fired, or exhaust fired depending on heat input. HRSGs vary in operation pressure as either single or multi-pressure. Post-combustion emission controls like
Heat rate is the pulse rate of a power plant to know the health of the plant.
Net heat rate is the single parameter that encompasses total performance indices of a power plant.
This document provides an energy audit of the condenser and condenser cooling water system for a power plant. It includes specifications and measurements for the condenser, cooling towers, cooling water pumps, and related components. The audit involves collecting operational data, evaluating performance against design parameters, investigating issues, and exploring energy conservation opportunities. Recommendations focus on improving condenser vacuum, effectiveness and heat rate; optimizing cooling water flow; upgrading pumps and drives; improving cooling tower performance; and tracking system metrics over time.
The document discusses a student project on thermal power plants. It includes:
1) An introduction of the students and professor overseeing the project.
2) The objectives of the project which are to study how power is generated in thermal plants, the components like boilers and causes of boiler tube failures.
3) An outline of topics to be covered like the power generation principle, boilers, failures and case studies.
The book describes the basics of heat rate, how it is to be calculated, the mass balance of the Thermal power station and the requisite data to be collected, the boiler efficiency, turbine efficiency and everything related to the heat rate of the Power Plant.
Centrifugal compressor: Casing and inlet. ImpellersYashChanne2
1. A centrifugal compressor uses radial acceleration from an impeller to compress gas, with multiple stages providing greater compression. Air passing through the impeller gains velocity and pressure before entering the diffuser.
2. The diffuser converts the velocity into pressure as the air slows down. Multiple components including the impeller and diffuser work together to increase the pressure.
3. Centrifugal compressors come in single stage for lower compression ratios up to 3:1, and multistage versions for higher compression using backward leaning blades for better efficiency. They are used widely in industries like oil/gas, food processing, and refrigeration.
This document provides information about boilers. It defines a boiler as a closed vessel that heats fluid, typically water, which is then used for various heating applications. It describes the basic working principle of boilers, which involves using heat energy to convert water into steam. It also discusses different boiler types, components like burners, pumps, and safety devices, and explains the basic sequence of operations for a boiler.
This document discusses heat rate audits in thermal power plants. It aims to identify causes of efficiency losses that increase heat rate. Some key points:
- Heat rate is the amount of heat input (fuel) required per unit of power generated and impacts generation costs. Lower heat rates reduce costs.
- Losses occur in the boiler, turbine, condenser/feedwater systems, circulating water system, and from electrical/steam auxiliaries.
- Common causes of higher heat rates include incomplete combustion, turbine erosion, condenser tube fouling, and electrical auxiliary inefficiencies.
- Tracking plant parameters and conducting monthly performance tests can identify losses and guide improvement efforts to lower heat rates.
GMR Warora Energy monitors boiler performance using online and offline tools to identify losses and improve efficiency. Key performance indicators like dry flue gas loss and unburnt carbon are tracked. Corrective actions include optimizing excess air, mill performance, air preheater cleaning, and chemical treatment. This approach helps reduce fuel costs and improve availability. Monitoring tools help detect issues and 1% increased efficiency saves $82 million annually for a 600 MW plant.
National average auxiliary power consumption in thermal power plants is around 8-12%, and reducing it by even 0.5-1.0% can result in huge savings. There are many opportunities to reduce auxiliary power consumption, including optimizing air and flue gas systems, steam and feedwater systems, fuel and ash handling systems, electrical and lighting systems, cooling water systems, compressed air systems, and other areas like improving cooling tower performance. Specific opportunities mentioned include replacing oversized fans, reducing leakages, optimizing pump operations, improving coal quality, reducing idle running, improving condenser performance, and installing more efficient equipment.
Boiler maintenance is important to ensure safe, available, and efficient operation. It involves checking water levels, pressures, and water chemistry daily and cleaning components weekly. Monthly maintenance includes inspecting refractories and safety valves. Quarterly, filters and tanks should be cleaned. Semiannually, valves and pumps are inspected. Yearly, the smoke side and combustion chamber are cleaned and mountings inspected. Proper maintenance prevents downtime and costly repairs.
The document provides information on assessing the energy performance of boilers through testing. It discusses how boiler efficiency and evaporation ratio can decrease over time due to various factors like poor combustion, fouling, and deteriorating fuel/water quality. The purpose of performance testing is to determine the actual efficiency and compare it to design values in order to identify areas for improvement. Both direct and indirect testing methods are described as well as the necessary measurements, instruments, standards, and considerations involved in conducting the tests. Formulas are also provided for calculating efficiency using the indirect method by establishing heat losses from the boiler.
Heaters are used in refineries to raise the temperature of process fluids. There are different types of heaters classified by design and firing method. Key components include tubes, burners, and sections for convection and radiation. Proper draft, excess air, and complete combustion are important for safe and efficient operation. Regular checks help ensure heaters are functioning properly and identify any issues.
The document outlines the steps to safely shut down a 210 MW power generation unit for overhaul and maintenance. It involves gradually reducing boiler steam parameters and turbine load over several steps by cutting mills and heaters, before finally tripping the turbine. Key steps include maintaining temperature differences, ensuring availability of emergency equipment, monitoring parameters, and opening drains. The shutdown is completed by venting the boiler drum and stopping auxiliary systems once drum pressure is reduced.
The document describes the control system of a gas turbine. It discusses the various control loops for startup control, speed control, temperature control and shutdown control. It explains how fuel control is done through fuel stroke reference signals and describes the liquid and gas fuel control systems. It also discusses temperature reference selection, inlet guide vane modulation and dual fuel control functionality.
Boiler recommissioning procedure after capital overhaul Manohar Tatwawadi
In a thermal power plant, boiler overhauling is generally done yearly. The presentation highlights the procedure for the re-commissioning of the boiler after capital overhaul.
The document discusses Heat Recovery Steam Generators (HRSGs). HRSGs recover heat from gas turbine exhaust to produce steam. They operate in either combined cycle mode, where steam drives a turbine, or cogeneration mode where steam is used for industrial processes. HRSGs contain evaporator, economizer, and superheater sections to produce steam. They can also include reheaters, deaerators, and preheaters. HRSGs come in natural circulation, forced circulation, or once-through designs and can be unfired, fired, supplementary fired, or exhaust fired depending on heat input. HRSGs vary in operation pressure as either single or multi-pressure. Post-combustion emission controls like
Heat rate is the pulse rate of a power plant to know the health of the plant.
Net heat rate is the single parameter that encompasses total performance indices of a power plant.
This document provides an energy audit of the condenser and condenser cooling water system for a power plant. It includes specifications and measurements for the condenser, cooling towers, cooling water pumps, and related components. The audit involves collecting operational data, evaluating performance against design parameters, investigating issues, and exploring energy conservation opportunities. Recommendations focus on improving condenser vacuum, effectiveness and heat rate; optimizing cooling water flow; upgrading pumps and drives; improving cooling tower performance; and tracking system metrics over time.
The document discusses a student project on thermal power plants. It includes:
1) An introduction of the students and professor overseeing the project.
2) The objectives of the project which are to study how power is generated in thermal plants, the components like boilers and causes of boiler tube failures.
3) An outline of topics to be covered like the power generation principle, boilers, failures and case studies.
The book describes the basics of heat rate, how it is to be calculated, the mass balance of the Thermal power station and the requisite data to be collected, the boiler efficiency, turbine efficiency and everything related to the heat rate of the Power Plant.
Centrifugal compressor: Casing and inlet. ImpellersYashChanne2
1. A centrifugal compressor uses radial acceleration from an impeller to compress gas, with multiple stages providing greater compression. Air passing through the impeller gains velocity and pressure before entering the diffuser.
2. The diffuser converts the velocity into pressure as the air slows down. Multiple components including the impeller and diffuser work together to increase the pressure.
3. Centrifugal compressors come in single stage for lower compression ratios up to 3:1, and multistage versions for higher compression using backward leaning blades for better efficiency. They are used widely in industries like oil/gas, food processing, and refrigeration.
This document provides information about boilers. It defines a boiler as a closed vessel that heats fluid, typically water, which is then used for various heating applications. It describes the basic working principle of boilers, which involves using heat energy to convert water into steam. It also discusses different boiler types, components like burners, pumps, and safety devices, and explains the basic sequence of operations for a boiler.
This document discusses heat rate audits in thermal power plants. It aims to identify causes of efficiency losses that increase heat rate. Some key points:
- Heat rate is the amount of heat input (fuel) required per unit of power generated and impacts generation costs. Lower heat rates reduce costs.
- Losses occur in the boiler, turbine, condenser/feedwater systems, circulating water system, and from electrical/steam auxiliaries.
- Common causes of higher heat rates include incomplete combustion, turbine erosion, condenser tube fouling, and electrical auxiliary inefficiencies.
- Tracking plant parameters and conducting monthly performance tests can identify losses and guide improvement efforts to lower heat rates.
GMR Warora Energy monitors boiler performance using online and offline tools to identify losses and improve efficiency. Key performance indicators like dry flue gas loss and unburnt carbon are tracked. Corrective actions include optimizing excess air, mill performance, air preheater cleaning, and chemical treatment. This approach helps reduce fuel costs and improve availability. Monitoring tools help detect issues and 1% increased efficiency saves $82 million annually for a 600 MW plant.
National average auxiliary power consumption in thermal power plants is around 8-12%, and reducing it by even 0.5-1.0% can result in huge savings. There are many opportunities to reduce auxiliary power consumption, including optimizing air and flue gas systems, steam and feedwater systems, fuel and ash handling systems, electrical and lighting systems, cooling water systems, compressed air systems, and other areas like improving cooling tower performance. Specific opportunities mentioned include replacing oversized fans, reducing leakages, optimizing pump operations, improving coal quality, reducing idle running, improving condenser performance, and installing more efficient equipment.
Boiler maintenance is important to ensure safe, available, and efficient operation. It involves checking water levels, pressures, and water chemistry daily and cleaning components weekly. Monthly maintenance includes inspecting refractories and safety valves. Quarterly, filters and tanks should be cleaned. Semiannually, valves and pumps are inspected. Yearly, the smoke side and combustion chamber are cleaned and mountings inspected. Proper maintenance prevents downtime and costly repairs.
The document provides information on assessing the energy performance of boilers through testing. It discusses how boiler efficiency and evaporation ratio can decrease over time due to various factors like poor combustion, fouling, and deteriorating fuel/water quality. The purpose of performance testing is to determine the actual efficiency and compare it to design values in order to identify areas for improvement. Both direct and indirect testing methods are described as well as the necessary measurements, instruments, standards, and considerations involved in conducting the tests. Formulas are also provided for calculating efficiency using the indirect method by establishing heat losses from the boiler.
This document discusses maintenance schedules and strategies for electrical substation equipment like power transformers and distribution transformers. It provides daily, monthly, quarterly, half-yearly, and annual maintenance tasks for checking equipment operation and performance. Key tasks include checking oil levels, insulation resistance, dissolved gases in oil, and cleaning/replacing oil filters. The document also summarizes common equipment defects like leaks, loose connections, and winding issues; and stresses on equipment from electrical, thermal, mechanical, and environmental factors that cause deterioration over time.
The document discusses efficient steam systems and generation. It provides information on fuel prices and calorific values, boiler efficiency and cost of steam for different fuels. It discusses optimal steam generation systems and factors to consider like steam demand, fuel selection, and cogeneration feasibility. Graphs show measured losses from boilers and comparisons of efficiency methods. The document emphasizes the importance of monitoring boiler parameters, automation, and intelligent control systems to improve efficiency. It also covers steam distribution, insulation, venting, metering and trapping to reduce losses across the steam system.
This document provides details on routine testing and maintenance services for transformers. It lists various tests and services conducted before and after overhauling a transformer to improve its performance and efficiency. These include routine testing of components like Buchholze relays, OTI/WTI meters, radiators, conservator tanks and maintenance of parts like the main tank, core and windings. The aim is to check operation and insulation, calibrate instruments, replace gaskets and clean components to enhance the transformer's lifespan.
Astm method for distillation of petroleum products at atmospheric pressureStudent
This document summarizes an experiment to determine the boiling range of kerosene using ASTM distillation. The experiment involves heating a 100mL gasoline sample in a distillation flask and measuring the temperature and volume percent distilled at intervals. A plot of the results shows the boiling range is 54-180°C. The document discusses how boiling range indicates a fuel's composition and properties, and how it affects safety, performance, and tendency to be explosive. Factors like vapor losses and condenser efficiency can impact the accuracy of the results.
This document discusses the validation of various sterilization processes including steam, dry heat, ethylene oxide, and radiation sterilization. It provides details on qualification and calibration of equipment used, selection and calibration of biological indicators, and heat distribution and penetration studies. The key steps in validating dry heat, ethylene oxide, and radiation sterilization cycles are also summarized.
The document provides standard operating procedures for a boiler and steam turbine in a waste heat recovery unit. For the boiler, it describes startup and shutdown procedures, monitoring parameters, maintenance schedules, and safety precautions. For the steam turbine, it outlines startup steps including gradually increasing rpm over time, monitoring key parameters like oil pressure and temperature, and checks to perform before startup. The overall purpose is to safely and efficiently operate the boiler and turbine system to recover heat from waste gases.
ASTM Distillation D86: A Standard Test Method for Distillation of Petroleum P...IRJESJOURNAL
Abstract :- This test method covers the atmospheric distillation of petroleum products and liquid fuels using a laboratory batch distillation unit to determine quantitatively the boiling range characteristics of such products as light and middle distillates, automotive spark ignition engine fuels with or without oxygen. This test method is designed for the analysis of distillate fuels; it is not applicable to product containing appreciable quantities of residual material .This test method covers both manual and automated instruments. The distillation characteristics of hydrocarbons have important effects on their safety and performance especially in the case of fuel and lubricants .The boiling range gives information on the composition, properties, and behavior of the fuel during storage and uses.
This document presents a case study and methods to re-establish a condemned boiler. It includes an introduction, contents listing, acknowledgements, abstract on the Hindustan Storage & Distribution Company where the boiler is located, specifications and diagrams of the boiler, scope of dismantling and repair work, results of dismantling, scope of work after renovation including flue gas analysis and boiler tuning.
The document discusses different methods for extracting secondary metabolites and essential oils from plants, including distillation methods like water distillation, water and steam distillation, and steam distillation. It also discusses solvent extraction and other methods like enfleurage. Key points include how each extraction method works, advantages and disadvantages of different distillation techniques, ideal properties of solvents used, and the basic steps involved in solvent extraction and enfleurage.
1. The performance of boilers decreases over time due to factors like poor combustion, fouling, and improper maintenance. Regular efficiency testing helps identify efficiency losses and issues in need of corrective action.
2. The purpose of a performance test is to determine the actual efficiency and evaporation ratio of a boiler and compare it to design specifications. It tracks variations in efficiency over time and the impact of energy efficiency improvements.
3. Boiler efficiency can be tested via the direct method, which compares energy output in steam to energy input in fuel burned, or the indirect method, which calculates efficiency as 100% minus the sum of measured heat loss factors. Both methods require measuring various operational parameters.
The document discusses the validation of various sterilization methods and water supply systems used in pharmaceutical manufacturing. It provides details on:
1. The key properties of sterile products and various sterilization methods like heat, gas, radiation.
2. The validation process for steam, dry heat and ethylene oxide sterilization including qualification of equipment and instruments, heat distribution studies, biological indicators, and establishing a monitoring program.
3. Types of water systems used, water treatment techniques, equipment components, design considerations for storage and distribution, and the concept of validation involving engineering design, operating procedures, maintenance and testing under all conditions.
How to Maintain Your Temperature Calibration Equipment WebinarTranscat
In this informative webinar with Fluke Calibration you will learn tips for keeping your calibration baths and temperature calibrators operating at their peak.
You’ve invested a lot of money in your temperature calibration lab. Preventative maintenance is critical to keeping your calibration baths and temperature calibrators running at their best. A few minutes spent now in maintaining your equipment can also save you costly repairs and downtime later.
flash point petroleum and gas lab experiment report, The flash point is the lowest temperature at which there will be enough flammable vapor to induce ignition when an ignition source is applied.Flash points are determined experimentally by heating the liquid in a container (cup) and then introducing a small flame just above the liquid surface. The temperature at which there is a flash/ignition is recorded as the flash point. The closed-cup test PMA 5 contains any vapors
produced and essentially simulates the situation
in which a potential source of ignition is
accidentally introduced into a container. In this
test a test specimen is introduced into a cup and
a close-fitting lid is fitted to the top of the cup.
The cup and test specimen is heated.
Subsequently, apertures are opened in the lid to
allow air into the cup and the ignition source to
be dipped into the vapors to test for a flash.
The closed cup is mostly used in product specifications and regulations due to
its better precision. The following table shows the comparative flash points
measured in open and closed cup apparatus for some common pure liquids.
This is the powerpoint file of the reactor design that was assigned to me during my final year design project. I solved the rate equations in MATLAB to calculate the reactor volume.
Thermodyne boilers can help you by saving upto 30% of the fuel cost by providing high efficiency boilers, Energy consultancy and customized heating solutions. Fuel saving are not only important for margins, but also for environment. Industry can count on Thermodyne because we believe in Enhancing Energy Efficiency.
Maximizing Generator Lifespan Key Strategies For Effective MaintenanceLeddy Power Systems Inc
Ensuring the longevity of your generator requires regular inspections, fluid system maintenance, load testing, and clean fuel management. Focus on key components like fuel lines, belts, and electrical connections. Use proper tools and seek professional help for fluid replacements. Regularly clean or replace fuel filters and monitor coolant levels to keep your generator running efficiently and reliably.
Energy conversion engineering lab manual fullFarhan8885
This document contains information about experiments to determine properties of fuels and lubricants in an aircraft energy conversion laboratory. It includes the syllabus, list of experiments, and procedures for determining flash point and fire point using Abel's and Pensky Martens apparatus, calorific value using a Junker's calorimeter, and viscosity using a Redwood viscometer. The experiments provide methods for evaluating properties essential for aircraft fuel and lubricant performance and safety.
This document provides guidance on maintaining and inspecting transformers. It discusses:
1) The importance of safety during inspections and establishing inspection programs in advance.
2) Types of inspections, including internal, under service interruption, and daily/periodic maintenance.
3) Procedures for different types of inspections, such as checking equipment is disconnected, taking measurements, and being careful of foreign materials inside transformers.
4) Recommended frequencies for periodic inspections of different transformer components, from every 3 years for bushings to every 10 years for internal inspections.
5) Criteria for evaluating insulating oil deterioration based on measurements of dielectric strength and acid value.
Similar to Boiler Maintenance and Safety PPT.pdf (20)
The document discusses the concept of smart cities, outlining key elements like smart governance, smart mobility, smart living, and using technologies like IoT, GPS and ICT to improve services, infrastructure, and sustainability in urban areas. It provides examples of smart city initiatives in areas like waste management, water supply, and transportation from cities in India and abroad. The presentation evaluates challenges in implementing smart city projects and emphasizes the importance of public participation.
This document provides information about different types of valves, their components, and testing procedures. It discusses the main types of valves including gate valves, globe valves, ball valves, butterfly valves, and check valves. For each type it provides details on their design, advantages, and disadvantages. It also covers common valve components, connections, materials, and how to read a trim chart. Finally, it describes the various testing methods for valves outlined in API 598 including shell tests, backseat tests, and high and low pressure closure tests. It provides guidelines for test pressures, fluids, durations, and acceptable leakage rates.
This document provides a method statement for installing an air handling unit (AHU). It outlines the responsibilities of the project manager, quality engineer, site engineer, surveyor, and safety officer to ensure installation is completed safely according to approved plans and specifications. Equipment like mechanical hand tools, a mobile crane, and forklift will be used. The AHU will be stored properly and transported to the installation site using a crane or forklift. It will then be set in place, connected to ductwork and electrical lines. Personal protective equipment and safety measures will be implemented during installation to protect worker health and safety.
The document discusses different types of pumps, including centrifugal and reciprocating pumps. It explains that pumps are mechanical devices that use energy to force fluids from one position to another by overcoming head losses. It also covers key pump concepts such as net positive suction head (NPSH), cavitation, discharge pressure, pump characteristics curves, and examples of pump sizing calculations.
1) The document discusses fire classes, types of portable fire extinguishers, their operating procedures, capabilities and limitations.
2) It explains basic firefighting concepts including R.A.C.E. (rescue, alarm, contain, extinguish) and P.A.S.S. (pull, aim, squeeze, sweep).
3) The main types of portable fire extinguishers covered are pressurized water, carbon dioxide, dry chemical, halon, wet chemical, and those for combustible metals.
This document provides information on various piping drawings used in piping design and installation. It discusses process flow diagrams (PFDs), piping and instrumentation diagrams (P&IDs), piping isometrics, plot plans, and general arrangement drawings. PFDs show the major equipment and process flows at a high level, while P&IDs provide more detailed piping information along with instrumentation and control schemes. Piping isometrics are used for fabrication and show piping runs at an angle for clarity. General arrangement drawings indicate equipment locations and piping layouts from a plan view. Together these drawings provide the necessary information for proper piping system design, installation, and operation.
1. Control valves regulate fluid flow through a pipe in response to a controller signal, manipulating fluid to keep process variables close to set points.
2. Control valves have two major parts - a valve actuator that provides mechanical power to move valve body components, and a valve body containing mechanical elements to influence fluid flow.
3. Within the valve body, components called trim perform the work of throttling or stopping fluid flow in response to actuator movements.
SCADA systems gather data from widely distributed processes and provide limited control capabilities over distant facilities. They consist of field instruments that collect data and control loops that regulate processes. Remote Terminal Units (RTUs) gather information from field devices and send it to a Master Terminal Unit (MTU) via communications networks. The MTU allows operators to monitor and control the system through a human-machine interface. SCADA systems are used to supervise critical infrastructure like pipelines and power grids over large areas.
The document discusses compressors and their performance measurement. It describes how a compressor works by sucking in air at lower pressure and delivering it at higher pressure. The performance of a compressor is measured by parameters like capacity and pressure. Capacity is measured in units of volume per unit of time, known as Free Air Delivery (FAD), at standard temperature and pressure conditions. Pressure is also an important parameter and can be measured in units like bars, psi, etc. The document then discusses the different types of compressors - positive displacement compressors and dynamic compressors - and provides examples like reciprocating compressors, screw compressors, centrifugal compressors. It explains the working principles of reciprocating, screw and centrifugal compressors
This document lists the names, websites, and regions served for over 200 technology companies. It provides a listing of global technology companies and their locations. The document gives an overview of the worldwide presence of many software and internet companies across different regions.
This document appears to be a presentation about building management systems (BMS) and HVAC systems. It includes sections on the introduction to BMS, HVAC control, building automation and BMS, direct digital control, control theory, control concepts, modes of control, HVAC automation, and HVAC instrumentation. Some key points discussed include the objectives of BMS like energy management and maintenance reporting, different types of HVAC systems like central and unitary systems, and concepts related to HVAC control like temperature, humidity and pressure control loops. It also discusses digital control systems, control algorithms, and various control modes like on/off, proportional and PID control.
David Schurk performed measurements of carbon dioxide (CO2) levels on two United Airlines flights to assess cabin air quality. On the first 2-hour flight from Asheville to Chicago, CO2 levels started at 1511 parts per million (ppm) and remained elevated throughout the flight. Using a modeling tool, he estimated the equivalent ventilation rate was around 7.5 cubic feet per minute (cfm) per person, which is low. On a shorter connecting flight, CO2 levels were lower, between 1149-1400 ppm, perhaps due to a newer plane or better ventilation. While a single test, it showed the potential for elevated CO2 in plane cabins without sufficient fresh air ventilation.
Vermigold produces organic waste digesters that use worms and microorganisms to convert organic waste into nutrient-rich compost on-site. Their award-winning products address the need for sustainable waste management and have been recognized by the UN and Government of India. The digesters use a shredder and organic digester to break down waste into compost with daily collection of fertilizer. They are precisely constructed using stainless steel and galvanized parts for long service with minimal maintenance.
Sign up now for our fall semester classes starting in September. We offer a wide range of undergraduate courses in subjects like business, engineering, arts and sciences. Financial aid is available for eligible students, so don't delay - apply today and start your journey towards a college degree.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
3. Boiler Maintenance
What is the need to maintain a boiler?
How do we maintain a boiler?
The Need:
1.To ensure 100% safe to operate the boiler.
2.To ensure 100% availability for the Production
Requirement.
3.To ensure the boiler runs at its Best efficiency.
4.To ensure the operation to be cost effective.
4. How do we maintain a boiler?
How……………
Requirements
1.Corrects Inputs
a.Quality of Water-Feed water & Boiler Water
b.Quality of Fuel
c.Input Voltage
2.Quality of Combustion
3.Operation
a.Right Manpower(Certified Operator)
b.Good Engineering Practices-Regular Servicing,Log book etc.
5. Feed Water Quality
BFW NORMS AS PER IS 10392-1982.
Parameter 0-20
(kg/cm2
)
20-40
(kg/cm2
)
Purpose
pH 8.5-9.5 8.5-9.5 Corrosion Control
Oxygen ND ND Pitting Control
Total Hardness <10 ND Scaling Control
Organics ND ND Foam Control
6. Boiler Water Quality
Parameter 0-20
(kg/cm2
)
20-40
(kg/cm2
)
Purpose
pH 11-12 11-12 Corrosion
Total Hardness ND ND Scale
Total Alkalinity (20% of TDS) 700 400 Foam
Phenolphthalin Alkalinity (10%
of TDS)
350 200 Foam
Silica (40% Caustic Alkaly) 140 80 Scale
TDS 3500 2000 Corrosion
Phosphates 20-40 10-30 Corrosion
Sulphite 30-50 20-40 Oxygen
Hydrazine 0.1 0.1-0.5 Oxygen
BOILER WATER NORMS AS PER IS 10392-1982
7. Heavy scales formed in
Water tubes in a water tube Boiler.
Caused due to very high
Hardness
Leads to damage of the
tubes
Effects of Bad water Quality
8. Effects of Bad water Quality
Oxygen pitting marks on the
tube surface in a Fire tube Boiler
9. Dosing System
It is a requirement to maintain the Feed
water qualities,mainly to take care of
the following.
a.Oxygen Scavenger.
b.ph Booster
c.Corrosion Inhibitor (Antiscalant)
10. Different Kinds of Fuels
Solid Fuels:
Husk,coal,Wood,Groundnutshell,Bagasse,
Briquettes, De oiled Cake etc.
Liquid Fuels:
Furnace Oil, LDO,HSD,LSHS etc
Gaseous Fuels:
Natural Gas, Bio gas, Hydrogen Gas etc.
13. Combustion
3 T’s of Combustion
1.Time-Residense time of the fuel to burn.
2.Temperature-The Fuel needs to be fired at the right
temperature.
3.Turbulance-For the better mixing & Combustion.
Indicators of Good Combustion
1.O2 level will be 3-4 %
2.CO2 will be 12-13%
3.Flue gas temperature-180 to 230DegC (Desirable)
14. To Achieve the 3T’s of Combustion
Solid Fuel:
1.Fuel Size.
2.Bed Particle size(For FBC)
3.Proportionate Combustion Air.
4.Furnace pressure.(-2 to -5mm of Water Column)
5.FurnaceTemperature.
6.Secondary Air for the Volatiles.
Liquid & Gas Fuel:
1.Free of Impurities.(Proper Filteration system)
2.Fuel temperature(Oil)
3.Fuel Pressure(Oil)
4.Proper Atomisation of the fuel(Pressure Jet,SAB,Rotary Cup-Oil)
5.Proportionate Combustion Air.
15. Efficiencies
1.Combustion Efficiency-It is the efficiency of the
Burner/Furnace to burn the fuel effectively.
2.Thermal Efficiency-It is efficiency of the heat transfer in
the Boiler.
3.Overall System Efficiency-It is the system efficiency of
the boiler (which will be equal to the Fuel to Steam Ratio).
For every 1% of increase in Efficiency will save more than
1% of the Fuel Quantity.
On commercial side,for a 5TPH FBC boiler,will have a
savings of app Rs.3.6L per year.
(Considering Husk@Rs.3000/Ton with GCV of
3100Kcal/Kg)
16. Safeties in Boiler
1.Mechanical Safety (Solid,Oil,Gas)
a.Safety Valve
b.Fusible Plug.
c.Explosion Proof Door
2.Electrical Safety
Electrical Safeties Oil Gas Solid
Low Water Level YES YES YES
Flame Failue YES YES NO
Boiler Steam Pressure High YES YES YES
Combustion Air pressure Low YES YES NO
Flue gas temperature High YES YES YES
Fuel oil Temperature Low YES NO NO
Inlet Gas Pressure High NO YES NO
VPS(Valve Proving System) NO YES NO
Furnace Temperature High NO NO YES
Furnace Pressure High NO NO YES
19. 1.Check feed water quality.
2.Give blow down at regular intervals ( approx. twice in a
shift ).
3.Blow down the Mobrey level switch and gauge glass.
4.Clean the gauge glass externally.
5.Clean the fuel filters and strainers.
6.Drain slightly the oil line bucket filter.
7.Nozzle cleaning.
Daily Maintenance
20. 1.Check the working of low level & extra low level alarm by
reducing the water level.
2.Ensure proper lubrication of all moving parts.
3.Clean the flame sensor and viewing glass.
4.Check the conditions of door seals.
5.Check that there are no variations in the fuel pressure as
compared with that at commissioning time.
Weekly Maintenance
21. 1.Clean electrical contacts of all relays and tighten loose
connections if any. Rough emery paper should not be used
for cleaning contacts.
2.Check water pump gaskets and non-return valve.
3.Lubricate the modulation motor linkages.
4.Clean the burner nozzle and ignition electrodes.
5.Check and clean, if necessary, the furnace.
Monthly Maintenance
22. Quarterly Maintenance
1.Clean blower fan blades.
2.Drain and clean water service /
deaerator tank and fill it with soft / DM
water.
3.Clean the fuel filters / strainers.
4.Drain and clean fuel service tank.
5.Open and clean out doors of boiler and
super heater. Remove collected soot
deposits.
23. Half Yearly Maintenance
1.Check all valves for leakage; lap them if found
leaking.
2.Lubricate bearings of water pumps.
3.Check the sealing of Manhole head holes, and
clean out door of smoke box.
4.Clean the inner and outer face of the sight
glass.
NOTE :Under no circumstances should a door be
left with gas leak around the seal as this would
damage the door.
24. Yearly Maintenance
1.Clean the smoke tubes with the help of wire brush.
2.Clean the combustion chamber of boiler and, super
heater. However quality of fuel and burner efficiency
will determine the frequency of cleaning this.
3.Lubricate the motors. Burner should be over hauled
at least once a year & regulated to ensure perfect
combustion.
4.Check the door refractory for any damage. Repair
as necessary.
5.Clean the water side of the boiler thoroughly. De-
scaling, if required, should be carried out as given in
the section on “De-scaling”.
25. Maintenance of Oil fired Boiler
1.Modulation assembly and damper
servicing.
2.Burner assembly, nozzle & flame sensor
cleaning.
3.Fuel pumps alignment.
4.FO day tank and feed water tank
cleaning.
5.All fuel & water line filters and strainers
cleaning.
6.Monitoring O2% & CO2%.
7.All safety interlocks checking.
8.Cleaning of Fire tubes.
27. Daily Maintenance
1.Check softness of water by carrying out Q-test as
described in Operation section of manual.
2.Give blow down at regular intervals depending on
the feed water analysis.
3.Blow down the Mobrey Level Switch.
4.Blow down the gauge glasses.
5.Check fly ash and ensure timely ash removal.
28. Weekly Maintenance
1.Regenerate water softener, more than once a week, if
found necessary, depending on the quality of raw water. In
some cases, even daily regeneration may be necessary.
2.Check the working of feed water pre-heater/deaerator
tank, if provided.
3.Ensure that the gauge glasses are clean from inside and
outside so that the water level is clearly visible in the gauge
glasses.
4.Check the working of Mobrey Level Switch. Ensure that
the minimum and maximum water levels are properly
controlled.
29. 1.Check the working of Low water cut off switch mounted on
the boiler. Open the boiler blow down valve. When the
water level reaches approximate 20 mm in the gauge glass,
there should be an audio-visual alarm.
2.Check the working of safety valves. Close the main steam
stop valve and other valves of the boiler and allows the steam
pressure to increase. The safety valves should open at the set
pressure and the steam pressure on the boiler should drop on
opening of the safety valves.
3.Check, if necessary and tighten all the foundation bolts
Weekly Maintenance
30. Monthly Maintenance
1.Drain the soft water service tank. Clean it from
inside and refill it with soft water.
2.Tighten stuffing box of water pump, if necessary.
3.Clean silver contacts of relays with carbon tetra
chloride or with paper, if required. Rough emery paper
should never be used.
4.Tighten screws connecting wires to terminal strips,
various relays, motors, controls, etc.
5.Ease the steam safety valves and reset.
6.Check and replace oil in gear boxes.
7.Check the condition of grate bars and replace
damaged ones if any.
8.Clean the Fire tubes.
31. Quarterly Maintenance
1.Drain and clean the feed water storage tank.
2.Clean the ID and FD fan blades.
3.Lubricate the bearings of water pump, ID and FD
fans.
4.Check Fuel Size as per Boiler requirement
5.Check Fuel feeding system
6.Check Sand/Bed Material Size (FBC)
7.Check the condition of the bed air nozzles for over
heating (FBC).
32. Half yearly Maintenance
1.Check the condition of refractory wall of the
combustion chamber.
2.Check all valves for leakage and lap them, if
necessary, with lapping paste.
3.Check the ducts and other joints for infiltration
of fresh air.
4.Check the quantity of resin inside the water
softener and top it up, if necessary. (Reason for
loss of resin is the carry-over of resin with back
wash water hence due care should be taken while
backwashes).
33. Yearly Maintenance
1.Check and repair the insulation lining of boiler, if required.
2.Clean various tanks and paint them.
3.Clean inside of the flue gas outlet.
4.Grease electric motors.
5.Check the membrane panel, it’s headers and tubes from
outside for cleanliness and clean if necessary.
6.Check the boiler tubes for cleanliness from inside and de-
scale if required. Descaling to be done chemically.
7.Carry out hydraulic test.
8.Check the condition of impellers and replace them if
necessary.
34. 1.Cleaning of tube internal in Flue Gas Side with wire brush
2.Cleaning of Pressure Part in the water side by De scaling.
3.Check All Rotary equipment’s like Blower, Fans For
Vibration/Erosion/Balancing
4.Check Air / Flue Gas Duct leakages and arrest the leakages if
any
5.Furnace Refractory visual check & Flame test to identify
refractory leaks.
6.Check all Rotary Air Lock Valves (RAV) for Air ingress. Blade wear
out
7.Check Air Pre-heater Tubes for leaks & Chocking
8.Check Dust Collector internals like vanes, tubes for any erosion
9.Check Water Pre Heater for leaks & chocking
10.Check Grate bars /Bed Nozzle for damages
11.Check fire doors for damages
12.Check Smoke tube Spiral & sleeve condition.
13.Check ID fan impeller for erosion
FLUE GAS CIRCUIT
35. Data Management
1.Log Book
2.History Card
3.Spares Inventory.
4.Calibration Data of Instruments.
5.Fuel Analysis Reports.
6.Water Analysis Reports.
7.Maintenance Records.
8.IBR Certificates.
9,Boiler Drawings
36. SPECIAL SERVICES PROVIDED BY
THERMAX FOR BOILERS & HEATERS
1.DIAGNOTHERM
2.RLA (Remaining Life Assessment)
3.SERVICE PLUS (Annual Service Contracts)
4.SMART SERVE
37. DIAGNOTHERM
1.It is a comprehensive health check up study for
boilers & heaters which are in operation for longer
duration & needs expertise advice for safe & healthy
operation.
2.In depth log book study for 3- 6 month operation of
equipment.
3.Detailed check of safeties & interlocks
4.Efficiency check of the equipment as applicable.
5.Find out improvement areas which can either make
operation safe or help improve fuel efficiency
6.Detailed report with recommendation
38. RLA (Remaining Life Assessment)
It is detailed scientific study for assessing the
existing condition & life of a boiler / heater &
hence confirming its safe operation in future.
Also Life Extension Program of an equipment
as it follows a scientific procedure to identify
any flaws developed in an equipment &
suggesting the remedies for the same.
39. Methodology of RLA
1.Destructive & Non Destructive Tests.
2.Metallurgical Tests.
3.Review of Operational parameters.
4.Review of Water treatment records.
5.Final assessment.
6.Suggestions for Repairs/revamp / replacement &
redesign for safe operation of equipment's as well
as for efficiency enhancement.
46. METALLOGRAPHY-
1.Metallography of materials is useful in
predicting the internal degradation of
material affecting it’s properties.
2.The tool determines abuse of overheating
& damage received ,
Snapshots of the activity
48. BENEFITS OF RLA
1.Extends the safe life of unit & gives
confidence to the user for safe usage of
boilers.
2.Refreshes & renovates the boiler to
ensure minimum interruption to process.
3.Develops program for planned
replacement of boiler parts & minimize
production loss.
49. We offer our services for …
1.Small & Medium, Shell & Coil type IBR
/ Non IBR boilers – Capacity 50 Kg/hr to
30000 Kg/ hr.
2.Thermic fluid Heaters – 0.01 to 20
MKcal / hr
3.Pressure Vessels
4.Economizers & Super heaters
5.Pipelines
6.Heat Exchangers
50. Who does the Life Assessment / Condition
Assessment
1.Qualified & Competent team driven by
competent and experienced Metallurgist with vast
exposure to Indian/International Boiler & Heater
field.
2.Certified Level 2/3 technicians/Inspectors to
carry out/supervise NDT Tests -
Dye Penetrant Test
Magnetic Particle Inspection
In situ Metallography
Ultrasonic Thickness measurement
Corrosion Assessment
Boroscopic inspection
51. SERVICE PLUS (Annual Service Contracts)
1.It is a special service package offered
byThermax for up time of utility equipment’s
such as boilers / heaters to get the consistent
output at desired efficiency.
2.It is a flexible package & offers various services
based on the type & capacity of equipment,
automation, combustion system, etc installed on
the equipment.
52. BENEFITS FOR SERVICE PLUS
1.It consists of Preventive maintenance visits &
Overhauling visits to guide on healthy and safe
operation of the Unit.
2.Flue gas analysis for O2, CO2 & CO contents
and Excess Air.
3.Performance load trail.
4.Efficiency Trial Reports as per BS 845 Part I.
Suggestions for efficiency improvements.
53. SMART SERVE
1.Highly experience service when needed
2.Assist in restarting old equipment
3.Specialized services to ensure your boiler & heater
get professional service hands & you want quality
services .
4.When your boiler / heater has major breakdown &
you don’t know how to repair / rectify the problem.
Want to find the root cause of failure through FTA &
take corrective action.
5.Fuel conversion jobs & re commissioning.