Economiser in Thermal Power Plant - MCQs with answers Q1. The major use of the Economiser is . a. Heat up the incoming water with exhaust steam. b. Heat up the pulverised fuel by exhaust. c. Heat up the incoming air by exhaust gases. d. Heat up the incoming water by exhaust gases. View Answer Hide Answer
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Economiser in thermal power plant economiser 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. the recovered heat is in turn used to preheat the boiler feed water, that will eventually be converted to super-heated steam .
1-the functions of using economizer in thermal power station is to remove feed water a heat air b preheat steamc heat feed waterd 2-if the load factor of a power station is high then its cost of generation will be good a nothing b very highc very goodd low e 3-a hydraulic turbine converts the potential energy of water into thermal energya gravitational energyb kinetic ...
Introduction . economizer power plant boiler h finned tube economizer with asme standard is a kind of boiler parts, to have two steel circular symmetry to be welded on fluorescent tubes to form ins positive shape much like letter quothquot, so called h-fin tube. h finned tube economizer widely used in
Function of economiser in thermal power plant is to recover some of the heat from the heat carried away in the flue gases up the chimney and utilize for heating the feed water to the boiler. it is simply a heat ex-changer with hot flue gas on shell side and water on
Boiler economiser 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.
Economizer purpose of the economizer in thermal power plant is to capture and utilize the heat from stack gasesflue gases and transfer it to the boiler feed water ...
Jan 15, 2019nbsp018332boiler accessories are the components which are installed to increase the efficiency of the steam power plant. the following accessories are given below air preheater, economiser, superheater, feed pump, injector. related searches introduction of thermal power plant, working of coal handling plant, working of ash handling plant
Economizer economizer is used as a heat exchanger. the remaining heat energy of the flue gases is passed through economizer so as to increase the efficiency of the plant. superheater in thermal power plant a saturated steam is first generated in the boiler which contains some
Jul 11, 2020nbsp018332thermal 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, high-pressure steam then we use this steam to turn a steam turbine ...
The boiler of coal-fired thermal power plant consists of integrating process units such as the furnace, economizer, drum, and superheater. there is a lack of proper dynamic model derived from mass and energy balances of individual units integrated together where dynamics of material and energy flow are not understood properly supporting the
Economiser in thermal power plant economiser 2020-5-6 183 an economiser is a mechanical device which is used as a heat exchanger by preheating a fluid to reduce energy consumption. in a steam boiler, it is a heat ex-changer device that heats up fluids or recovers residual heat from the combustion product i.e. flue gases in thermal power ...
Dipak k. sarkar, in thermal power plant, 2017. 8.6.1.2 puffing method. in the puffing method, thermal shock is the driving force. this method may be adopted to blow-out steam pipe lines of circuits a, b, c, and d figs. 8.3, 8.5, 8.8, and 8.10 described earlier.
Dipak k. sarkar, in thermal power plant, 2015 2.7.2 steaming economizer a steaming economizer may be defined as an economizer in which the temperature rise in the economizer is equal to or more than two-thirds of the difference between the economizer inlet feedwater temperature and the saturation temperature of the fluid at that pressure.
Boilers are provided with economizer and air pre-heaters to recover heat from the flue gases. boilers operate with around 86 to 90 efficiency depending upon the type of fuel and design adopted. a degrease of about 20 of boiler efficiency is seen by not providing both economizer and air pre-heaters. if economizer alone is provided then the efficiency will be lower by 12 when compared to ...
Apr 22, 2017nbsp018332ratio r this is the ratio t to to t between the rise in temperature of the water and the drop in temperature of the gases.it varies between 0.6 and 0.8 that is, the water temperature increases by 0.7176 when the gases drop by 1176. flue gas outlet temperature t in o c to . heating surface s in m 2 x . while find the heat transfer coefficient of our existing system
These economisers recover heat from the exhaust gas to, typically, the boiler feed water thereby optimising the overall efficiency of the plant in the most compact and cost-effective manner. these advanced and robust economisers can significantly increase the boilers efficiency often so much so that the return on investment can be as little as ...
The thermal power plants overall efficiency is low as below thirty 30 percent. application of thermal power plant the application of the thermal power plant is to produce electricity the generation of electricity, various stages come cross which has been already you know as discussed above.
Failure of economizer tubes from different powerwater cogeneration dual purpose thermal desalination plants. in general, the investigations showed that the failure had been reported mainly from plants using high sulfur content fuel oil and the cause of the failure could be
Thermal power plant in india-more than 65 of indias energy generation capability comes from thermal power plants, 85 of the countrys thermal power generation is coal based. all of indias ten largest thermal power plants are coal-fired, with five owned and operated by the state-run national thermal power corporation ntpc.
Steam is supplied to the steam boiler in differen field like steam engine,steam turbine,thermal power plant,various heating installation process,different cotton mills,sugar factories etc. ... if the boiler is equipped with an economiser and superheater ,then the efficiency is
Mar 31, 2010nbsp018332the major operating cost of a coal-fired power plant is for fuel. given the higher heating value hhv, the amount of coal required to generate a desired power output depends on
May 04, 2012nbsp018332thermal power plant tpp is a power plant in which the prime mover is steam driven. water is heated, turns into steam and spins a steam turbine which drives an electrical generator. after it passes through the turbine, the steam is condensed in a condenser. the greatest variation in the design of tpps is due to the different fuel sources.
Power plant power plant objective type questions and answers. 21. economiser is used to heat..... a. feed heater b. air c. flue gases d. all of the above
Importance amp use of economiser in thermal power plants thermal power generation is one of the method that costs high as compared to hydro and other renewable energy methods. since the fuel burning is involved the wastage of fuel is also high if not properly burned and result is the higher cost of thermal power.
Easy operation boiler in thermal power plant , power plant economiser high efficiency . economizer is a mechanical device intended to reduce energy consumption, or to perform another useful function like preheating a fluid. the economizer is used for other purposes as well boiler, powerplant, and heating, ventilating, and air-conditioninhvac ...
In india 65 of total power is generated by the thermal power stations .main parts of the plant are 1.chp 2.boiler 3.coal ash 4.aph 5.dmp 6.esp 7.chimney 8.turbine 9.condenser 10.transformers 11.cooling towers 12.generator 13.sub station 14.bfp
Jul 31, 2013nbsp018332in fact, errors of plus or minus 3 or 4 inches in water level are commonplace in the typical power plant. a feedwater heater experiencing suboptimal water levels will experience reduced heating ...
Tubes, pipes, boilers for thermal power plants tpb is a manufacturer amp erector of high temperature steam boiler pressure parts, boiler components and fabricator of replacement boiler tube, water wall tubes and panels, superheater, economiser tubes amp coils, assemblies, wall or steam header and other boiler pressure parts and heavy structures for ...
Non-condensing economisers are used in coal-fired thermal power plant where the temperature of the flue gas can be reduced to 120 deg c. non-condensing economisers increases the efficiency of the boiler by 3-6. condensing type economisers are used in natural gas-fired thermal powerplant. condensing economisers can reduce the flue gas ...
Ash generated in the economiser hopper, air-prehetater hopper aph and electrostatic precipitator esp which got carried out with the flue gas is generally called fly ash. it is around 75-80 of ash generated in thermal power plant. in coal power plant in thermal power plant, coal is used as a fuel for generating steam.
