华南理工大学学报(自然科学版) ›› 2017, Vol. 45 ›› Issue (10): 8-15.doi: 10.3969/j.issn.1000-565X.2017.10.002

• 化学化工、能源 • 上一篇    下一篇

热泵在热电联产集中供热系统中的应用及火用分析

李亚军 谭荣帅 梁文   

  1. 华南理工大学 化学与化工学院∥传热强化与过程节能教育部重点实验室,广东 广州 510640
  • 收稿日期:2016-12-07 修回日期:2017-04-09 出版日期:2017-10-25 发布日期:2017-09-01
  • 通信作者: 李亚军(1969-),女,副教授,主要从事过程系统工程研究. E-mail:liyajun@scut.edu.cn
  • 作者简介:李亚军(1969-),女,副教授,主要从事过程系统工程研究.
  • 基金资助:
    国家自然科学基金资助项目(51576070);广东省自然科学基金资助项目(2014A030313224)

Application and Exergy Analysis of Heat Pumps in Co-generation Central Heating System

LI Ya-jun TAN Rong-shuai LIANG Wen-hao   

  1. School of Chemistry and Chemical Engineering∥Key Laboratory of Heat Transfer Enhancement and Energy Conservation of the Ministry of Education,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2016-12-07 Revised:2017-04-09 Online:2017-10-25 Published:2017-09-01
  • Contact: 李亚军(1969-),女,副教授,主要从事过程系统工程研究. E-mail:liyajun@scut.edu.cn
  • About author:李亚军(1969-),女,副教授,主要从事过程系统工程研究.
  • Supported by:

    Supported by the National Natural Science Foundation of China(51576070) and the Natural Science Foundation of Guangdong Province(2014A030313224)

摘要: 为提高现有集中供热系统的供热能力和供热效率,以缓解冬季日益增长的采暖 供热缺口,文中基于一现有热电联产集中供热系统,设计了新增热源和利用热泵两种提升 供热能力的方案,并对比分析不同方案对供热系统 COP( 制热能效比) 、?效率和经济性 的影响. 研究结果表明: 采用新增热源方案的供热系统 COP 为 0. 98,与现有系统基本持 平, ?效率为28. 39%,相比于现有系统降低了 39. 15%,动态回收期为 7. 98 年; 采用热泵 方案的供热系统 COP 为 1. 34、 ?效率为 62. 69%,相比于现有系统分别提升了 35. 4%、 34. 36%,动态回收期为 5. 73 年,且具有良好的经济适应性.

关键词: 热电联产, 集中供热系统, 热泵, ?效率

Abstract: In order to improve the heating capacity and efficiency of the existing central heating system and thus re- lieve the growing pressure on the heating system in winter,two schemes of adding new heating and adopting heat pumps are designed based on an existing co-generation central heating system.Then,the COP,the exergy efficien- cy and the payback period are used to evaluate the two schemes.The results show that,when the new heating is added,the central heating system achieves a COP of 0. 98,which is almost equal to that of the existing system,and an exergy efficiency of 28. 39%,which is decreased by 39. 15%,as well as a dynamic payback period of 7. 98 years,and that,when the heat pumps are adopted,the COP and the exergy efficiency of the central heating system are respectively 1. 34 and 62. 69%,which are respectively 35. 4% and 34. 36% higher than those of the existing system,and the dynamic payback period is 5. 73 years.In addition,the system adopting the heat pumps is of a good economic adaptability.

Key words: co-generation, central heating system, heat pump, exergy efficiency

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