Abstract:

In this paper, the comparative study was carried out between two 600MW thermal power plant (A and B) with similar power units and load factor but significantly different operation economics. The annual generation capacity of plant B is 97.6% of plant A, but it has created 143.9% of the annual profit in comparison to plant A. Major economic indicators of plant A and B were normalized using benchmarking, and their influences on the coal assumption are calculated for comparative study. The research revealed that as integrated power plant, plant A has a higher power consumption rate，bigger condenser difference，and higher exhaust temperature, which results in its poor performance in its operation economics. 5.343g/(kW·h) of coal consumption of power supply was affected by the three factors above, which occupies 84.3% of the total. According to the actual unit setup, technological modification measures are suggested.

Key words:

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