Planning and Economic Analysis on Flue Gas Heat Utilization in Thermal Power Plant
The waste heat loss is the biggest one in the heat loss of the boiler.Its main affecting factor is the exhaust gas temperature.This paper presents the way to reduce the waste heat loss and improve the thermal efficiency of the whole plant,such as setting the low-pressure economizer to heat the condensate,recover and utilize part of the flue gas heat.Through the case study of 660MW unit,this paper demonstrates the technical rationality and economic feasibility of setting the low temperature economizer.
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