基于非共沸工质的喷射式功冷并供循环㶲经济性分析

doi:10.12096/j.2096-4528.pgt.19180

发电技术 ›› 2020, Vol. 41 ›› Issue (3): 261-268.DOI: 10.12096/j.2096-4528.pgt.19180

基于非共沸工质的喷射式功冷并供循环㶲经济性分析

杨彬(),陈瑞华(),赵力*()

中低温热能高效利用教育部重点实验室(天津大学), 天津市南开区 300350

收稿日期:2019-12-26 出版日期:2020-06-30 发布日期:2020-06-24
通讯作者: 赵力
作者简介:杨彬(1996),男,硕士研究生,研究方向为分布式能源系统, 1598924594@qq.com|陈瑞华(1997),男,硕士研究生,研究方向为热力循环三维构建, chenrh@tju.edu.cn
基金资助:
国家重点研发计划项目(2018YFB0905103)

Thermo-economic Analysis of Ejector Combined Cooling and Power Cycle Based on Zeotropic Working Fluids

Bin YANG(),Ruihua CHEN(),Li ZHAO*()

Key Laboratory of Efficient Utilization of Low and Medium Grade Energy(Tianjin University), Nankai District, Tianjin 300350, China

Received:2019-12-26 Published:2020-06-30 Online:2020-06-24
Contact: Li ZHAO
Supported by:
National Key Research and Development Program(2018YFB0905103)

摘要/Abstract

摘要：

从热力学第一、二定律和经济性的角度，对一种新型的基于非共沸工质的喷射式功冷并供循环进行热经济性分析。并在此基础上对循环进行参数分析，研究工质组分比、蒸发温度、冷凝温度、膨胀机膨胀比、蒸汽发生器出口温度5个关键参数对循环热效率、㶲效率和资金成本率的影响。最后，以㶲效率最大化和成本率最小化为目标优化函数，采用NSGA-II算法得出帕累托最优解系，并使用TOPSIS方法进行决策，得出最优决策点，即㶲效率为0.131 9，资金成本率为1.94×10^-5美元/s。

关键词: 分布式能源, 喷射式功冷并供循环, 非共沸工质, 热经济性分析, 多目标优化

Abstract:

In terms of the first and second laws of thermodynamics and economy, the thermo-economic analysis of a new ejector combined cooling and power cycle based on zeotropic working fluids was carried out. On this basis, the parameters of the cycle were analyzed. The effects of the five key parameters of composition ratio, evaporation temperature, condensing temperature, expansion ratio of expander, outlet temperature of steam generator on the thermal efficiency, exergy efficiency and capital cost rate were studied. Finally, taking the maximization of exergy efficiency and the minimization of cost rate as the objective function, Pareto optimal front was acquired by using NSGA-II. An exergy efficiency of 0.131 9 and capital cost rate of 1.94×10^-5 $/s were selected as the best decision point by using TOPSIS decision method.

Key words: distributed energy, ejector combined cooling and power cycle, zeotropic working fluids, thermo-economic analysis, multiobjective optimization

中图分类号:

TK115

杨彬,陈瑞华,赵力. 基于非共沸工质的喷射式功冷并供循环㶲经济性分析[J]. 发电技术, 2020, 41(3): 261-268.

Bin YANG,Ruihua CHEN,Li ZHAO. Thermo-economic Analysis of Ejector Combined Cooling and Power Cycle Based on Zeotropic Working Fluids[J]. Power Generation Technology, 2020, 41(3): 261-268.

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基于非共沸工质的喷射式功冷并供循环㶲经济性分析

Thermo-economic Analysis of Ejector Combined Cooling and Power Cycle Based on Zeotropic Working Fluids

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