基于可逆功比的热电联产系统[火用]成本分析方法  

Exergy Cost Analysis Method for Heat and Power Cogeneration System Based on Reversible Work Ratio

作　　者：刘浩 王震 陈炼 王楠 王晨晨[3] LIU Hao;WANG Zhen;CHEN Lian;WANG Nan;WANG Chenchen(State Power Investment Corporation Research Institute,Beijing 102209,China;Shandong Nuclear Power Company Ltd.,Yantai 265116,Shandong Province,China;Shanghai Nuclear Engineering Research&Design Institute Co.Ltd.,Shanghai 200233,China)

机构地区：[1]国家电投集团科学技术研究院有限公司,北京102209 [2]山东核电有限公司,山东烟台265116 [3]上海核工程研究设计院股份有限公司,上海200233

出　　处：《动力工程学报》2023年第6期805-814,共10页Journal of Chinese Society of Power Engineering

基　　金：先进核能区域性拓展综合研究资助项目(TC2020HN02)。

摘　　要：为了分析多联产系统的各种输出能量的单位[火用]成本,提出一种基于可逆功比的[火用]成本分析方法。此方法假设完成可逆过程的热力系统输出的各种形式能量的单位[火用]成本相等,且与输入能量的平均单位[火用]成本相等。通过此假设和可逆功比(即可逆过程的做功量与总能量的比值),构建成本平衡方程,分析了燃气轮机热电联产系统输出能量的[火用]成本,最后进行了天然气分布式能源系统算例的[火用]成本分析。结果表明:利用此方法可以得出与“质优价高”一致的结论。To analyze the unit exergy cost of various output energies in cogeneration systems,an exergy cost analysis method based on reversible work ratio was proposed.The unit exergy costs of different forms of energy output by a thermodynamic system in a reversible process were equivalent,and were equivalent with the mean unit exergy cost of input energy.Exergy cost balance equations was established based on the hypothesis and reversible work ratio—the ratio of work to the total energy in a reversible process,and the unit exergy costs of output energies of a gas turbine heat and power cogeneration system was analyzed.The exergy cost of a natural gas distributed energy system was calculated.Results show that the exergy cost is higher when the energy quality is higher.

关 键 词：分布式能源 热电联产 㶲成本 系统评价 

分 类 号：TK019[动力工程及工程热物理]