boiler accessories, basics of economizer, types of economizer, air preheater, types of air preheater, reheater, basics of superheater, types of superheater.
This deals with Boiler feed pumps used in power plants .
contains details about the KHI and FK series pumps , technical parameters and maintenance prctices followed for these pumps
Hello,
I am trying to explain about Steam Generator (Boiler) in this session, due to length of said presentation, I am deciding to divide it in three parts.
Part 1 cover the “Introduction & Types of Steam Generator”
Part 2 cover about the “Parts of Steam Generator and Its Accessories & Auxiliaries” and
Part 3 cover the “Efficiency & Performance”
Boilers are most important part of Chemical Industry. 99 % boilers used in Pakistan Chemical Industries are water tube boilers because of their high efficiency and safety. So we should have clear understanding about the boilers.
A boiler or steam generator is a device used to create steam by applying heat energy to water. Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure.
Download Link (Copy URL):
https://sites.google.com/view/varunpratapsingh/teaching-engagements
This PPT contained slides for Steam distribution system, which is a third unit in Energy Conservation subject of final year in Mechanical Engineering Branch.
The content of PPT are mentioned below:
Steam Distribution System, Thermodynamics, Heat, Properties of steam, steam, steam system, PDRS, Steam pipe installation, Dryers, Operation and maintenance of steam traps, Condensate Recovery System, Flash Recovery System, Energy Conservation Opportunity in Steam Distribution System.
boiler accessories, basics of economizer, types of economizer, air preheater, types of air preheater, reheater, basics of superheater, types of superheater.
This deals with Boiler feed pumps used in power plants .
contains details about the KHI and FK series pumps , technical parameters and maintenance prctices followed for these pumps
Hello,
I am trying to explain about Steam Generator (Boiler) in this session, due to length of said presentation, I am deciding to divide it in three parts.
Part 1 cover the “Introduction & Types of Steam Generator”
Part 2 cover about the “Parts of Steam Generator and Its Accessories & Auxiliaries” and
Part 3 cover the “Efficiency & Performance”
Boilers are most important part of Chemical Industry. 99 % boilers used in Pakistan Chemical Industries are water tube boilers because of their high efficiency and safety. So we should have clear understanding about the boilers.
A boiler or steam generator is a device used to create steam by applying heat energy to water. Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure.
Download Link (Copy URL):
https://sites.google.com/view/varunpratapsingh/teaching-engagements
This PPT contained slides for Steam distribution system, which is a third unit in Energy Conservation subject of final year in Mechanical Engineering Branch.
The content of PPT are mentioned below:
Steam Distribution System, Thermodynamics, Heat, Properties of steam, steam, steam system, PDRS, Steam pipe installation, Dryers, Operation and maintenance of steam traps, Condensate Recovery System, Flash Recovery System, Energy Conservation Opportunity in Steam Distribution System.
Unit 7-gear trains, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Unit-3 - Velocity and acceleration of mechanisms, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Unit 2- mechanisms, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
i hope, it will helpful to the students and peoples in the search of topics mentioned
it is informative to study to even get passing marks or for revision
Multi Stage Flash Type Marine EvaporatorSasi Villa
Multi stage flash type evaporators are usually found in huge powerplants.So here is one of the application of multi stage flash type evaporators in the marine industry
Plant Utility Loffler Boiler pu ppt.pptxKalpeshMore27
The Loffler boiler plant utility is a marvel of engineering, a cornerstone of industrial efficiency, and a testament to human ingenuity. With its origins dating back to the early 20th century, the Loffler boiler has evolved into a vital component of power generation and industrial processes worldwide.
At its core, the Loffler boiler is a type of water tube boiler renowned for its high pressure and temperature capabilities. Named after its inventor, Carl Gustav de Laval, the Loffler boiler utilizes a unique design to produce steam efficiently and reliably. Unlike traditional fire tube boilers, which rely on combustion gases passing through tubes to heat water, the Loffler boiler circulates water through a series of tubes while heating it externally with steam. This innovative approach maximizes heat transfer efficiency, resulting in higher steam production rates and lower fuel consumption.
One of the key features of the Loffler boiler plant utility is its adaptability to a wide range of fuels. Whether powered by coal, oil, natural gas, or biomass, the Loffler boiler can accommodate various fuel sources, making it a versatile choice for different industrial applications. This flexibility ensures reliable operation even in regions where fuel availability may vary.
Another notable aspect of the Loffler boiler plant utility is its ability to generate superheated steam. By further heating steam beyond its saturation point, the Loffler boiler produces steam with increased energy content and temperature. This superheated steam is ideal for driving turbines in power generation plants, where efficiency and performance are paramount.
In addition to its primary function of steam generation, the Loffler boiler plant utility often incorporates advanced control systems and monitoring technologies to optimize performance and ensure safe operation. Automated controls regulate fuel and air flow rates, water levels, and steam pressure, maintaining optimal operating conditions while minimizing energy waste and emissions.
Furthermore, the Loffler boiler plant utility prioritizes safety through robust design features and comprehensive safety protocols. Multiple layers of redundancy, pressure relief valves, and emergency shutdown systems mitigate risks and protect personnel and equipment from potential hazards.
Beyond its technical prowess, the Loffler boiler plant utility plays a crucial role in supporting various industries, including power generation, petrochemical, refining, and manufacturing. Its reliable steam supply powers turbines, drives machinery, heats processes, and facilitates countless industrial operations, contributing to economic growth and development.
In summary, the Loffler boiler plant utility stands as a pinnacle of engineering excellence, combining innovation, efficiency, and reliability to meet the demanding requirements of modern industry. With its versatility, performance, and safety features, the Loffler boiler.
Boiler is an apparatus to produce steam. Thermal energy released by combustion of fuel is used to make steam at the desired temperature and pressure.
The steam produced is used for:
(i) Producing mechanical work by expanding it in steam engine or steam turbine.
(ii) Heating the residential and industrial buildings
(iii) Performing certain processes in the sugar mills, chemical and textile industries.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
2. • 1) WHAT IS BOILER?
-A BOILER IS A CLOSED VESSEL IN WHICH WATER OR OTHER FLUID IS HEATED.
• 2) TYPES OF METALS USED?
-BOILER IS USUALLY MADE OF STEEL, WROUGHT IRON, STAINLESS STEEL ETC.
-COPPER OR BRASS IS USED IN SMALLER SIZE BOILERS BECAUSE IT IS MORE EASILY
FABRICATED. COPPER WAS USED FOR FIREBOXES PARTICULARLY FOR STEAM LOCOMOTIVES,
BECAUSE OF ITS BETTER FORMABILITY AND HIGHER THERMAL CONDUCTIVITY
• WORKING PRINCIPLE OF BOILER?
-THE BASIC WORKING PRINCIPLE OF BOILER IS VERY VERY SIMPLE AND EASY TO
UNDERSTAND. THE BOILER IS ESSENTIALLY A CLOSED VESSEL INSIDE WHICH WATER IS
STORED. FUEL (GENERALLY COAL) IS BURNT IN A FURNACE AND HOT GASSES ARE PRODUCED.
THESE HOT GASSES COME IN CONTACT WITH WATER VESSEL WHERE THE HEAT OF THESE HOT
GASES TRANSFER TO THE WATER AND CONSEQUENTLY STEAM IS PRODUCED IN THE BOILER.
THEN THIS STEAM IS PIPED TO THE TURBINE OF THERMAL POWER PLANT. THERE ARE MANY
DIFFERENT TYPES OF BOILER UTILIZED FOR DIFFERENT PURPOSES LIKE RUNNING A
PRODUCTION UNIT, SANITIZING SOME AREA, STERILIZING EQUIPMENT, TO WARM UP THE
3. THERE ARE DIFFERENT TYPES OF BOILERS ARE
PRESENT
• WATER TUBE BOILER AND
• FIRE TUBE BOILER.
-PRESENT THESE ARE THE MAIN TWO TYPES OF BOILERS ARE USED.
• PACKAGED BOILER
• FLUIDIZED BED COMBUSTION BOILER
• ATMOSPHERIC FLUIDIZED BED COMBUSTION BOILER
• PRESSURIZED FLUIDIZED BED COMBUSTION BOILER
• CIRCULATING FLUIDIZED BED COMBUSTION BOILER
• STOKER FIRED BOILER
• PULVERIZED FUEL BOILER
• WASTE HEAT BOILER AND THERMIC FLUID HEATER.
--LET US DISCUSS BRIEFLY ABOUT EACH BOILERS.
4. WATER TUBE BOILER
• IN WATER TUBE BOILER, BOILER FEED WATER FLOWS THROUGH THE TUBES
AND ENTERS THE BOILER DRUM. THE CIRCULATED WATER IS HEATED BY
THE COMBUSTION GASES AND CONVERTED INTO STEAM AT THE VAPOR
SPACE IN THE DRUM.
• MOST MODERN WATER BOILER TUBE DESIGNS ARE WITHIN THE CAPACITY
RANGE 4,500 – 120,000 KG/HOUR OF STEAM, AT VERY HIGH PRESSURES.
MANY WATER TUBE BOILERS NOWADAYS ARE OF “PACKAGED”
CONSTRUCTION IF OIL AND /OR GAS ARE TO BE USED AS FUEL. SOLID FUEL
FIRED WATER TUBE DESIGNS ARE AVAILABLE BUT PACKAGED DESIGNS ARE
LESS COMMON.
5. WORKING PRINCIPLE OF WATER TUBE BOILER
--THE WORKING PRINCIPLE OF WATER TUBE BOILER IS VERY
INTERESTING AND SIMPLE.
-IT CONSISTS OF MAINLY TWO DRUMS, ONE IS UPPER DRUM
CALLED STEAM DRUM OTHER IS LOWER DRUM CALLED MUD DRUM.
-THESE TWO DRUMS ARE CONNECTED WITH TWO TUBES
NAMELY DOWN-COMER AND RISER TUBES.
-WATER IN THE LOWER DRUM AND IN THE RISER CONNECTED
TO IT, IS HEATED AND STEAM IS PRODUCED IN THEM WHICH COMES
TO THE UPPER DRUMS NATURALLY.
- IN THE UPPER DRUM THE STEAM IS SEPARATED FROM WATER
NATURALLY AND STORED ABOVE THE WATER SURFACE.
6. TYPES OF WATER TUBE BOILER
THERE ARE MANY TYPES OF WATER TUBE BOILERS, SUCH AS
• 1) HORIZONTAL STRAIGHT TUBE BOILER
• 2) BENT TUBE BOILER.
• 3) CYCLONE FIRED BOILER.
7. 1)HORIZONTAL STRAIGHT OR LONGITUDINAL OR BABCOCK TUBE
BOILER.
-HORIZONTAL STRAIGHT TUBE BOILER AGAIN CAN BE SUB-DIVIDED INTO TWO
DIFFERENT TYPES, SUCH AS
1. LONGITUDINAL DRUM BOILER
2. CROSS DRUM BOILER.
8. LONGITUDINAL DRUM BOILER
- ORIGINAL THIS TYPE OF WATER-TUBE BOILER IS OPERATED ON THE THERMO-
SIPHON PRINCIPLE.
THE PRINCIPLE OF THE THERMO-SYPHON SYSTEM IS THAT COLD WATER HAS A HIGHER
SPECIFIC DENSITY THAN WARM WATER, AND SO BEING HEAVIER WILL SINK DOWN. THEREFORE,
THE COLLECTOR IS ALWAYS MOUNTED BELOW THE WATER STORAGE TANK, SO THAT COLD
WATER FROM THE TANK REACHES THE COLLECTOR VIA A DESCENDING WATER PIPE. IF THE
COLLECTOR HEATS UP THE WATER, THE WATER RISES AGAIN AND REACHES THE TANK
THROUGH AN ASCENDING WATER PIPE AT THE UPPER END OF THE COLLECTOR
9. CROSS DRUM BOILER.
-THE WORKING PRINCIPLE OF CROSS DRUM BOILER IS SAME AS LONGITUDINAL
DRUM BOILER .
• 1) THE FEED WATER IS FED TO THE CROSS DRUM THROUGH FEED WATER INLET.
• 2) THEN THIS WATER COMES DOWN THROUGH THE DOWN-COMER PIPE AND ENTERS INTO
INCLINED WATER TUBE PLACED IN HOT CHAMBER.
• 3) HERE, THE WATER BECOMES HOT AND STEAM IS PRODUCED IN THE WATER WHICH COMES
INTO STEAM CHAMBER.
• 4) HERE IN THE STEAM DRUM STEAM IS SEPARATED FROM WATER IN NATURAL WAY.
10. BEND TUBE BOILER
BENT TUBE BOILER ALSO CAN BE SUB-DIVIDED INTO FOUR DIFFERENT TYPES, SUCH AS
1. TWO DRUM BENT TUBE BOILER.
2. THREE DRUM BENT TUBE BOILER.
3. LOW HEAD THREE DRUM BENT TUBE BOILER.
4. FOUR DRUM BENT TUBE BOILER.
11. BEND TUBE BOILER
• BEND TUBE BOILER IS THE DEVELOPED VERSION OF WATER
TUBE BOILER. THE WORKING PRINCIPLE OF BEND TUBE
BOILER IS MORE OR LESS SAME AS OTHER WATER TUBE
BOILERS, BUT IT UTILIZES FOUR DRUMS.
• WORKING PRINCIPLE OF BENT TUBE THE FEED WATER FIRST
ENTERS INTO RIGHT MOST UPPER DRUM. DUE TO MORE
DENSITY THIS WATER COMES DOWN IN THE LOWER WATER
DRUM. THE WATER WITHIN THAT WATER DRUM AND THE
CONNECTING PIPES TO THE OTHER TWO UPPER DRUMS, ARE
HEATED UP AND CONSEQUENTLY STEAM BUBBLES ARE
PRODUCED. THIS IS THE MOST BASIC WORKING PRINCIPLE
OF BENT TUBE BOILER .
12. 3) CYCLONE FIRED BOILER.
• A CYCLONE FURNACE IS A TYPE OF COAL COMBUSTOR COMMONLY USED IN LARGE INDUSTRIAL
BOILERS.
-CYCLONE FURNACES WERE ORIGINALLY DESIGNED TO TAKE ADVANTAGE OF FOUR
THINGS
A. LOWER FUEL PREPARATION TIME AND COSTS
B. SMALLER MORE COMPACT FURNACES
C. LESS FLY ASH AND CONVECTIVE PASS SLAGGING
D. FLEXIBILITY IN FUEL TYPES
13. ADVANTAGES OF WATER TUBE BOILER
-THERE ARE MANY ADVANTAGES OF WATER TUBE BOILER. THESE TYPES OF BOILER ARE
ESSENTIALLY USED IN LARGE THERMAL POWER PLANT.
1) LARGER HEATING SURFACE CAN BE ACHIEVED BY USING MORE NUMBERS OF WATER TUBES.
2) DUE TO CONVECTIONAL FLOW, MOVEMENT OF WATER IS MUCH FASTER THAN THAT OF FIRE
TUBE BOILER, HENCE RATE OF HEAT TRANSFER IS HIGH WHICH RESULTS INTO HIGHER
EFFICIENCY.
3) VERY HIGH PRESSURE IN ORDER OF 140 KG/CM2 CAN BE OBTAINED SMOOTHLY.
14. DISADVANTAGES OF WATER TUBE BOILER
1) THE MAIN DISADVANTAGE OF WATER TUBE BOILER IS NOT COMPACT IN
CONSTRUCTION.
2) THE COST IS NOT CHEAP.
3) DIFFICULTY FOR TRANSPORTATION AND CONSTRUCTION.
16. FIRE TUBE BOILER
• IN FIRE TUBE BOILER, HOT GASES PASS THROUGH THE TUBES AND BOILER FEED WATER IN THE
SHELL SIDE IS CONVERTED INTO STEAM. FIRE TUBE BOILERS ARE GENERALLY USED FOR
RELATIVELY SMALL STEAM CAPACITIES AND LOW TO MEDIUM STEAM PRESSURES.
• AS A GUIDELINE, FIRE TUBE BOILERS ARE COMPETITIVE FOR STEAM RATES UP TO 12,000
KG/HOUR AND PRESSURES UP TO 18 KG/CM2.
• FIRE TUBE BOILERS ARE AVAILABLE FOR OPERATION WITH OIL, GAS OR SOLID FUELS. FOR
ECONOMIC REASONS, MOST FIRE TUBE BOILERS ARE NOWADAYS OF “PACKAGED”
CONSTRUCTION FOR ALL FUELS.
17. WORKING PRINCIPLE OF FIRE TUBE BOILER.
• IN FIRE TUBE BOILER, THE FUEL IS BURNT INSIDE A FURNACE.
• THE HOT GASES PRODUCED IN THE FURNACE THEN PASSES THROUGH THE FIRE TUBES. THE
FIRE TUBES ARE IMMERSED IN WATER INSIDE THE MAIN VESSEL OF THE BOILER.
• THE HEAT ENERGY OF THE GASSES IS TRANSFERRED TO THE WATER SURROUNDS THEM.
• AS A RESULT STEAM IS GENERATED IN THE WATER AND NATURALLY COMES UP AND IS
STORED UPON THE WATER IN THE SAME VESSEL OF FIRE TUBE BOILER.
• THIS STEAM IS THEN TAKEN OUT FROM THE STEAM OUTLET FOR UTILIZING FOR REQUIRED
PURPOSE. THE WATER IS FED INTO THE BOILER THROUGH THE FEED WATER INLET.
18. TYPES OF FIRE TUBE BOILER
• THERE ARE TWO TYPES OF FIRE TUBE BOILER
• EXTERNAL FURNACE AND
• INTERNAL FURNACE TYPE.
19. EXTERNAL FURNACE FIRE TUBE BOILER.
--THERE ARE MAINLY THREE TYPES OF EXTERNAL FURNACE FIRE TUBE BOILER.
• 1) HORIZONTAL RETURN TUBULAR FIRE TUBE BOILER.
• 2) SHORT FIRE BOX FIRE TUBE BOILER.
• 3) COMPACT FIRE TUBE BOILER.
20. HORIZONTAL RETURN FIRE TUBE BOILER
• HORIZONTAL RETURN FIRE TUBE BOILER IS MOST SUITABLE FOR
LOW CAPACITY THERMAL POWER PLANT.
• THE MAIN CONSTRUCTIONAL FEATURES OF THIS BOILER ARE ONE
BIG SIZE STEAM DRUM WHICH LIES HORIZONTALLY UPON
SUPPORTING STRUCTURES. THERE ARE NUMBERS OF FIRE TUBES
COME FROM FURNACE AND ALSO ALIGNED HORIZONTALLY INSIDE
THE DRUM. WHEN THE DRUM IS FILLED WITH WATER THESE TUBES
ARE SUBMERGED IN WATER.
• THE HOT GASSES IN THE TUBES UNDER WATER TRANSFER HEAT
TO THE WATER VIA THE TUBE WALLS. DUE TO THIS HEAT ENERGY
STEAM BUBBLES ARE CREATED AND COME UPON THE WATER
SURFACE. AS THE AMOUNT OF STEAM IS INCREASED IN THAT
CLOSED DRUM, STEAM PRESSURE INSIDE THE DRUM INCREASES
WHICH INCREASE SIGNIFICANTLY THE BOILING TEMPERATURE OF
THE WATER AND HENCE RATE OF PRODUCTION OF STEAM IS
21. INTERNAL FURNACE FIRE TUBE BOILER
-THERE ARE ALSO TWO TYPES OF INTERNAL FURNACE FIRE TUBE BOILER
• 1) HORIZONTAL TUBULAR.
• 2) VERTICAL TUBULAR FIRE TUBE BOILER.
22. ADVANTAGES OF FIRE TUBE BOILER
• 1) COMPACT IN CONSTRUCTION.
• 2) FLUCTUATION OF STEAM DEMAND CAN BE MET EASILY.
• 3) CHEAPER THAN WATER TUBE BOILER.
23. DISADVANTAGES OF FIRE TUBE BOILER
• 1) DUE TO LARGE WATER THE REQUIRED STEAM PRESSURE RISING TIME QUITE HIGH.
• 2) OUTPUT STEAM PRESSURE CANNOT BE VERY HIGH SINCE THE WATER AND STEAM ARE
KEPT IN SAME VESSEL.
• 3) THE STEAM RECEIVED FROM FIRE TUBE BOILER IS NOT VERY DRY.
• 4) IN A FIRE TUBE BOILER, THE STEAM DRUM IS ALWAYS UNDER PRESSURE, SO THERE MAY BE
A CHANCE OF HUGE EXPLOSION WHICH RESULTING TO SEVERE ACCIDENT.
24. • PRESENT THESE TWO BOILERS ARE MAINLY WE ARE USING FOR THE STEAM BOILERS.
• BOILER IS AN ESSENTIAL PART OF THERMAL POWER PLANT.
• THE PERCENTAGE OF TOTAL HEAT EXPORTED BY OUTLET STEAM IN THE TOTAL HEAT
SUPPLIED BY THE FUEL(COAL) IS CALLED STEAM BOILER EFFICIENCY.
• A TYPICAL EFFICIENCY OF STEAM BOILER IS 80% TO 88%.
• ACTUALLY THERE ARE SOME LOSSES OCCUR LIKE INCOMPLETE COMBUSTION, RADIATING
LOSS OCCURS FROM STEAM BOILER SURROUNDING WALL, DEFECTIVE COMBUSTION GAS
ETC.
CONCLUSIO
N