Calculation of thermal efficiency for circulating fluidized bed boilers

2016-05-01View Original

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May I ask, the water in the wind-water slag cooler comes from the condensate water and returns to the low-pressure heater?； The heated air goes to the furnace chamber. So, when calculating the thermal efficiency, if the slag discharge temperature of the cold slag extractor is 150°C, does the heat input to the boiler include the heat from the hot air supplied by the cold slag extractor? When calculating q2, should the exhaust heat still be based on the lower calorific value of the input heat, by subtracting the enthalpy of the cold air at a certain reference temperature, and then subtracting the enthalpy of the hot air from the slag cooler? Guys, please tell me which approach is the correct one~

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Calculation of thermal efficiency for circulating fluidized bed boilers

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