Model of Coal Cost for Blending Coal Combustion in Thermal Power Plant

doi:10.11930/j.issn.1004-9649.201704107

Abstract

Abstract: Coal cost is the largest part of thermal power plant running cost. A model of critical values of standard coal as fired price deviation (CVSCPD) is built, according to the coal cost minimization principle. This model comprehensively expresses how the unit power efficiency and coal prices influence coal cost. Two questions are answered by CVSCPD respectively, whether blending coal is effective to save coal cost, and which blending rate is the best. It helps to correct two mistakes of coal blending in commonsense. One mistake is that blending cheaper coal always helps reducing coal cost. The other is that the more we blend cheaper coal, the more we earn. It is quite applicable to the decision making of coal purchase and the process management of coal blending.

Key words: thermal power plant, blending coal combustion, coal cost, standard coal as fired price deviation, mathematic model, fuel management

CLC Number:

TK16

LI Jinjing, JIAO Kaiming, ZHAO Zhenning, ZHANG Qingfeng, SUN Yongchun. Model of Coal Cost for Blending Coal Combustion in Thermal Power Plant[J]. Electric Power, 2018, 51(9): 15-19.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201704107

https://www.electricpower.com.cn/EN/Y2018/V51/I9/15

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