Impact of the Running Modes of Coal-Fired Units on Energy Consumption in in-Depth Peak Load Cycling

doi:10.11930/j.issn.1004-9649.2017.07.085.05

Abstract

Abstract: Based on the test results of the net coal consumption of a 4×600 MW power plant, it is proposed that a critical time exists in the long-term peak load cycling when the low-load operation is switched to the two-shift operation. The economics of the two operation modes are analyzed. It concludes that the economic benefits will become more significant when there are more units with lager capacities and longer peak regulation running time in a power plant. Along with the load rate of power grids decreasing, the in-depth peak load cycling does not occur only at nights. Consequently, the two-shift operation deserves more attention for its benefits in energy conservation and emissions reduction.

Key words: in-depth peak load cycling, low-load operation, two-shift operation, critical time, economics

CLC Number:

TK227

ZHANG Liangli, LI Min, ZHOU Xiaomeng, LI Yijin, YANG Jianguo, ZHAO Hong, SHI Haoxun. Impact of the Running Modes of Coal-Fired Units on Energy Consumption in in-Depth Peak Load Cycling[J]. Electric Power, 2017, 50(7): 85-.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2017.07.085.05

https://www.electricpower.com.cn/EN/Y2017/V50/I7/85

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