华电技术 ›› 2015, Vol. 37 ›› Issue (1): 1-4.

• 研究与开发 •    下一篇

热电联产电厂供热的直接和间接效益分析

  

  1. (中国大唐集团科学技术研究院有限公司,北京〓102206)
  • 出版日期:2015-01-25 发布日期:2015-03-25

Analysis of direct and indirect benefit of cogeneration power plants

  1. (China Datang Corporation Science and Technology Research Institute,Beijing 102206,China)
  • Online:2015-01-25 Published:2015-03-25

摘要: 摘要:为了分析供热对热电联产效益的影响,定义了热电联产电厂供热的直接效益和间接效益。利用以热量法为基础的发电、供热成本费用分摊方法,对典型热电联产电厂的效益进行了测算分析。结果表明,热电联产电厂发电、供热效益不平衡,发电盈利但供热亏损,供热直接效益为负,但供热间接效益大于供热直接亏损;热电联产电厂的供热间接效益随着热电比的增加而增加,随着增加的发电利用小时数(与纯凝电厂相比)的增加而增加,随着煤价的变化,其变化幅度不大。

关键词: 关键词:热电联产, 供热, 效益分析, 热量法, 热电比

Abstract: Abstract:Direct and indirect benefits for a cogeneration power plant were defined in order to analyze the influence of heating on the cogeneration benefit. With the heatelectricity cost allocation method on the basis of heat capacity method, the benefits for the cogeneration power plant were calculated and analyzed. The results show that the heat and electricity benefits are not balanced; thus, electricity generation profits while heat supply incurred losses, and the absolute value of indirect heating benefit surpasses that of direct heating losses. It is also found that the indirect heating benefit increases with the heattoelectricity ratio and the incremental power utilization hours, but response little with fluctuating coal price.

Key words: Keywords:cogeneration, heating, benefit analysis, heat content method, heattoelectricity ratio