Reason of higher heat rate of the 600MW supercritical turbine

Abstract

Abstract: Since the No.2 unit of a power plant was put into production, the economical indicators and the heat rate always were higher than the design values, and the unit efficiency was not reached to the design demand. Therefore, the turbine thermodynamic performance test was carried out before No.2 unit overhaul, and the turbine heat rate and the efficiency of high pressure cylinder and middle pressure cylinder under three operation conditions of 3VWO, 450MW and 300MW were obtained by calculation. Then the reason of higher heat rate of No.2 unit turbine had been found, and some optimization measures were proposed providing reference for overhaul and technical reformation of No.2 unit.

Key words: supercritical turbine set, heat rate, test condition, test data, reason analysis, optimization measure

MA Shidong. Reason of higher heat rate of the 600MW supercritical turbine[J]. Huadian Technology, 2009, 31(10): 16-18.

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Reason of higher heat rate of the 600MW supercritical turbine

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