华电技术 ›› 2012, Vol. 34 ›› Issue (6): 25-29.

• 研究与开发 • 上一篇    下一篇

冷热电三联供电厂等价电效率分析

武文杰1,李鹍2   

  1. 1.通用电气(中国)研发开发中心有限公司,上海201203;2.上海交通大学机械与动力工程学院,上海200240
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-06-25

Analysis on second lawbased equivalent power generation efficiency for CCPH power plant

WU Wenjie1, LI Kun2   

  1. 1.GE (China) Research and Development Center Company Limited, Shanghai 201203, China; 2.School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2012-06-25

摘要: 燃气-蒸汽联合循环冷热电三联供系统具有较高的能量利用率,已经得到广泛的应用,但目前缺乏客观统一的效率定义。以热力学第二定律为基础,提出了冷热电三联供电厂等价电效率的概念,用于评估不同品位能量的系统效率。结合电厂实例,对比几种效率定义的差别,为冷热电三联供电厂设计和技术改进提供参考。

关键词: 联合循环, 冷热电三联供, 等价电效率

Abstract: The gassteam combined cycle cooling heating and power supply system (CCHP) has higher energy utilization and is used widely. However, there is not universal objective definition of the efficiency for CCHP plant at present. A concept of second lawbased equivalent power generation efficiency for CCHP plant was proposed based on the second thermodynamic law, which can be used to evaluate the system efficiency of different grade energies. Combining with examples of several power plants, the differences between several efficiency definitions were compared. The results can be used as reference for design and technical improvement of CCHP plant.

Key words: combined cycle, combined cooling heating and power supply (CCHP), second law-based equivalent power generation efficiency