Swapan basu, ajay kumar debnath, in power plant instrumentation and control handbook, 2015. Best powerpoint templates download your favorites today. Condenser w 0 steam power plant q h h out 4 1 the thermal efficiency of the rankine cycle is determine from net out th in in k 1 wq qq where w q q w w net in out turbine, out pump, in deviation of actual vapor power cycle from idealized ones the actual vapor power cycle differs from the ideal rankine cycle, as a result of. More than 60% of electric power is produced by steam plants in india. Water is heated, turns into steam and spins a steam turbine which either drives an electrical generator or does some other work, like ship propulsion. Types of air preheater recuperative type air preheater regenerative type air preheater 14. It is reported that 96% of the cost of operating a boiler system comes from fuel costs.
The boiler in the power plant has feed water heater, superheater and reheater. Boiler, power plant, heating, refrigeration, ventilating, and air conditioning uses are discussed in this article. Banerjee,department of electrical engineering, iit kharagpur. The resinous projects of rajasthan, the super thermal power station, and suratgarh is situated near village thukrana about 27 km. Thus, saving on fuel consumption and economising the process to a large extent, as we are essentially gathering the. Quantifying the cost of unplanned outages energytech, august, 2012. Introduction to power plants and boilers introduction power plants is an assembly of equipments that generates and delivers electrical energy by using the available energy. Figure 1 shows a sketch of the boiler leaked economizer. The fuel transported to the plant is generally bigger in particle size and before it is fed to the boiler furnace it is broken down into smaller pieces using crushers. Thermal energy is the major source of power generation in india. Thermal power plant uses steam energy for the generation of the electricity. Economizer flue gases coming out of the boiler carry lot of heat. Ash handling plant an overview sciencedirect topics. An economiser is a mechanical device which is used as a heat exchanger by preheating a fluid to reduce energy.
Heat recovery steam generation an overview sciencedirect topics. As of 20, the net power generation capacity in india is 2,25,793. Economizer tubes for power plant boiler 3d cad model. The fuel is transported from mines via trains to the fuel storage facility in a power plant. A thermal power station is a power station in which heat energy is converted to electric power. Pdeen bandhu choturam thermal power plant is a project of haryana power generation corporation limited hpgcl. For large boiler or small boiler, economizer is a crucial part. The site was considered an ideal location for setting up a thermal power station due to availability of land, water, transmission line and cheap labour. Steel condensing economiser in steam power plant, economizer power plant. Boiler accessories are the machine components which are installed either inside or outside the boiler to increase the efficiency of the plant and to help in proper working of the plant.
Feedwater entering the economizer is heated by the gas exiting the hrsg to a. It is concerned with the generation of superheated steam and includes boilers, economiser, airpreheater, superheater and other heat reclaiming. Kota super thermal power station rajasthans first coal based electricity generating power plant. The superheated steam is directly fed to this turbine to rotate it. In any steam power plant water tube boiler is used. Panipat thermal power station is a project of haryana power generation company limited situated in panipat jind road at about 11kms. Higher the size of plant, lower is the capital cost per mw and higher is the plant efficiency the terminal steam condition tend to increase. Investigation into the probable cause of failure of economizer tube of a thermal power plant article pdf available in journal of failure analysis and prevention 103. Although sc systems have been developed, heatrecovery steam generation is.
Thus, saving on fuel consumption and economizing the process to. Economizer functions in boiler system,economizer for high. Unit1 thermal power stations introduction thermal energy is the major source of power generation in india. Its practical approach is ideal for engineering professionals. After it passes through the turbine the steam is condensed in a condenser and recycled to where it was heated. Hence, the economiser in thermal power plants, is used to economise the process of electrical power generation, as the name of the device is suggestive of. Trends and future outlook for thermal power plants 71 fig. It is located at the left bank of the chambal river at the upstream of kota bairaj.
A major share in power generation is from thermal sources, with an installed capacity of 153847. Industrial boilers are systems designed to produce steam in varying quantities for a variety of applications including steam supply, power generation, space heating, process heating, sanitation and others. The plant had been in service for about 4 years after commissioning at the time of failure. Power plant powerpoint templates w power plantthemed. The fuel is then fed to the boiler generating a large amount of combustion heat. A device, which increases the tempurature of air before it supply to the furnance using heat from flue gases passing through chimney. Pulverizing process consists 3 stages classified as. An example of a conceptual presentation of an igfc power plant is given in. An essential element of fuel fired steam power plants 12.
Introduction in india 65% of total power is generated by the thermal power stations. Ken research the report provides in depth analysis on global thermal power market with forecasts up to 2030. Boilers of thermal power plants debanjan basak cesc ltd. Economizers are commonly used as part of a heat recovery steam generator hrsg in a combined cycle power plant. Part of an overall power plant model i built for a customer to couple with realtime data feeds that can be displayed on top of each boiler component. Thermal power plant presents practical content on coal, gas, oil, peat and biomassfueled thermal power plants, with chapters in steam power plant systems, start up and shut down, and interlock and protection. Points of discussion thermodynamic cycles discussion on sub and supercritical. Coal is burnt in a boiler which converts water into steam. Fossil fuels like coal, oil, natural gases are burnt in the boiler, a hot flue gases thus generated are used to heat the feed water. The term economizer is used for other purposes as well. Boiler is the main part of any thermal power plant. A thermal power station is a power plant in which the prime mover is steam driven. Hence, the economizer in thermal power plants, is used to economies the process of electrical power generation, as the name of the device is suggestive of. Thermal power plant convert the heat energy of coal into electrical energy.
Lecture series on energy resources and technology by prof. Energy conservation method in power plant in this article we discussed about various energy conservation method which should be adopted in power plant for getting maximum efficiency during operation here various energy efficiency techniques adopted in boiler system which is related to combustion, heat transfer, avoidable losses, high auxiliary power. Presentation on thermal power plant linkedin slideshare. Pdf power plant lecture notes chapter3 steam generator. Rvun established under companies act 1956 by government of rajasthan on 19. Studies on the failure of economizer tubes involving acid. At present, four units of 110 mw, two units of 210 mw and two units of 250 mw each are generating electricity. Download ppt the data necessary for the validation of the developed model are collected from 210 mw coal fired thermal power plant.
This steam under high pressure then expanded in stem turbine to rotate the continue reading construction and working of thermal power plant. Water is heated, turns into steam and spins a steam turbine which drives an electrical generator. Thermal power plant 1 no transcript 2 introduction in india 65 of total power is generated by the thermal power stations. In boilers, economizers are heat exchange devices that heat fluids, usually water, up to but not normally beyond the boiling point of that fluid. The data collected from the thermal power plant are. Statistical modeling of an integrated boiler for coal. Pulverizing is a means of exposing a large surface area to the action of oxygen and consequently helping combustion. The entire water requirement of the ashhandling system may be met with circulating water where the plant does not have a cooling tower facilitythat is, for a oncethrough system in coastal stations using lake or river water, or seawater. Application of system analysis for thermal power plant heat. What is the function of economizer in thermal power plant. The working principle of thermal power plant is based on rankine cycle. Thermal power plant or thermal power station is the place where we use the energy of heat to produce electric power, and its the most convenient sources of electric power generation, as we burn fuels such as oil, coal or liquefied natural gas to produce high temperature, highpressure steam then we use this steam to turn a steam turbine. Boiler economiser sometimes called economizer is the energy improving device that helps to reduce the cost of operation by saving the fuel the economizer in boiler tends to make the system more energy efficient in boilers, economizers are generally heat exchangers which are designed to exchange heat with the fluid, generally water. This cycle generates about 90% of all electric power used throughout the world i.
Economiser in thermal power plant economiser electrical4u. A thermal power station basically work on the rankine cycle. Pdf investigation into the probable cause of failure of. The kentube economizer is structurally engineered to handle any load transmitted through stack, structural steel accessories and breachingductwork. After it passes through the turbine, the steam is condensed in a condenser. Economizer in thermal power plant economizer listenlights. Ppt thermal power plant powerpoint presentation free. The report analyzes the power market scenario in the algeria includes thermal, nuclear, large hydro, pumped storage and renewable energy sources and provides future outlook with forecasts up to 2030. The out put from the hpt is reheated in a reheaterrh and used to rotate ipt.
The rankine cycle is a cycle that converts heat into work. Pulverizing plant in modern thermal power plant, coal is pulverized i. India has large deposit of coal about 170 billion tonnes, 5th largest in world. Thermal power plant electricity generation electrical. The heat is supplied externally to a closed loop, which usually uses water. Thermal power plant a thermal power plant converts the heat energy of coal into electrical energy. The expansion of steam in turbine produces mechanical power which drives the alternator coupled to the turbine. Boiler mud drum 72 boiler water wall 14 boiler stack economizer 18 boiler header manifolds 11 boiler air preheater 17 boiler super heater 22 cfb boiler drum 6 water wall panels 19. In a thermal power plant generally 3 turbines are used to increase the effciency. The recovered heat is in turn used to preheat the boiler feed water, that will eventually be converted to superheated steam. Thermal power plant questions and answers pdf download. Presentation on thermal power station presented by. Thermal power plants contribute maximum to the generation of power for any country in thermal generating. Thermal power station process flowchart and diagram.
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