Steam jet air ejectors are used to remove air from condensers and a de-aerating plant is used to remove dissolved air from feed water before pumping it through the economiser into the boiler. To check whether there is air leakage in the condenser or not, the plant is run until conditions are steady
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Dec 20, 2017 · An air cooled condenser (ACC) is a direct dry cooling system where steam is condensed inside air-cooled finned tubes. The cool ambient air flow outside the finned tubes is what removes heat and defines the functionality of an ACC. In thermal power plants …
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May 17, 2019 · The steam condenser of a power plant boiler is a critical heat exchanger in the process. Poor performance due to restricted heat transfer can have a dramatic influence on unit efficiency
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Feb 21, 2010 · The condensing unit is a crucial part of a steam power plant water circulation system . The condenser must have cooling in order to convert low pressure steam leaving the turbine to liquid condensate that can be pumped into the boiler. The …
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Nov 01, 2011 · Plant maintenance specialists are usually aware that points of excess air in-leakage to a condenser can often be discovered by use of a tracer gas such as helium or sulfur hexafluoride (SF 6). A
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Mar 27, 2020 · A steam condenser is a closed vessel in which steam is condensed by abstracting the heat by cooling it with water and where the pressure is maintained below atmospheric pressure. The condensed steam is known as condensate. The efficiency of the steam power plant is increased by the use of a condenser. The steam condenser is an essential
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May 10, 2020 · A down flow type surface condenser is designed to handle 110 TPH of steam, the steam enters the condenser at 0.12 kg/cm2 absolute pressure and 0.9 dryness fraction. Condensate leaves at 45 °C, calculate the quantity of cooling water required, condenser inlet and outlet cooling water temperatures are 29 °C and 37 °C respectively
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Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of. A. Higher effectiveness of boiler. B. High calorific value coal being burnt. C. Fouling of heat transfer surfaces. D. Raising of steam temperature. View Answer. View Answer
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Surface Condenser and Its Function in Thermal Power Plant. “. A surface condenser or steam condenser is a water-cooled shell and tube heat exchanger used to condensate the exhaust steam from the steam turbine in thermal power stations: the steam is converted from gaseous to liquid state at a pressure level below atmospheric pressure. In steam
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In thermal power plants, where cooling water is in short supply, an air-cooled condenser can be used. An air-cooled condenser is however, significantly more expensive and cannot achieve as low a steam turbine exhaust pressure (and temperature) as a water-cooled surface condenser. The water gets warmed in the condenser is discharged into the
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Mar 09, 2017 · The different components of the steam condensing plant are: Condenser, Supply of cooling water, Condenser cooling water pump, Condensate extract pump, Hot-well, Boiler Feed Pump, Air …
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Oct 31, 2012 · Sources of air in condenser 1. The boiler feed water contains the dissolved air in it. From the boiler it is carried off by the hot steam to the turbine and finally from turbine to the condenser. 2. There is also chance of air leakage from joints, packings, and glands into the condenser where the pressure is below the atmospheric pressure
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Dipak K. Sarkar, in Thermal Power Plant, 2015 12.5.8 Increase condenser vacuum. It is known from Chapter 9, Power Plant Systems, that evacuating air from the condenser may be realized either with the help of a steam jet air ejector or by utilizing a vacuum pump.Increase the condenser vacuum as …
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Jan 15, 2019 · In pulverized coal fired boiler,The coal is pulverized to a fine powder, so that less than 2 % is +300 micro meter and 70 – 75 % is below 75 microns. The pulverized coal is blown with part of the combustion air into boiler plant through a series of burner nozzles
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Nov 04, 2017 · A condenser is a heat exchanging device in which substances condense. They lose heat and turn into the liquid from the gaseous state. In Air Conditioner there is an ODU (outdoor unit) in which evaporated refrigerant flows and loses heat to the atmosphere and thus changes its state from vapour to liquid. Also in steam powerplant vapour condense
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The boiler is the part of the system that heats the water to be distributed. The key elements of a boiler include the burner, combustion chamber, heat exchanger, exhaust stack, and controls. Boiler accessories including the flue gas economizer are also commonly used as an effective method to recover heat from a boiler. Key Components of Boilers
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