Comprehensive evaluation index and performance analysis of organic Rankine cycle system considering environment impact

ZHANG Xinming; YU Bingxian; WANG Chun

doi:10.3969/j.issn.0438-1157.2014.12.045

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Comprehensive evaluation index and performance analysis of organic Rankine cycle system considering environment impact

更新时间：2025-12-10

- Comprehensive evaluation index and performance analysis of organic Rankine cycle system considering environment impact
- CIESC Journal Issue 12, Pages: 4978-4984(2014)
- 作者机构：
  
  1. 重庆大学低品位能源利用技术及系统教育部重点实验室,重庆,400044
  2. 重庆大学动力工程学院,重庆,400044
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.12.045
  CLC： K11
- Online First：05 December 2014，
  
  Published：05 December 2014
- 稿件说明：
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ZHANG Xinming, YU Bingxian, WANG Chun. Comprehensive evaluation index and performance analysis of organic Rankine cycle system considering environment impact[J]. CIESC Journal, 2014, (12): 4978-4984.
DOI：

ZHANG Xinming, YU Bingxian, WANG Chun. Comprehensive evaluation index and performance analysis of organic Rankine cycle system considering environment impact[J]. CIESC Journal, 2014, (12): 4978-4984. DOI： 10.3969/j.issn.0438-1157.2014.12.045.

摘要

为综合评价有机朗肯循环(ORC)系统的热经济和环保性能

采用(火用)参数量化工质的环境影响

提出了结合工质环境影响和循环热经济性能的综合评价指标"综合环境影响(火用)效率"

在150℃的低温热源条件下

对考虑工质环境影响的亚临界有机朗肯循环和跨临界有机朗肯循环的系统性能进行了分析对比

结果表明

综合考虑循环热经济性能和工质环境影响因素时

R123和R32分别为亚临界有机朗肯循环系统和跨临界朗肯循环系统的最佳工质;跨临界ORC系统循环净输出功率要高于亚临界ORC系统

但是跨临界ORC系统较高的循环蒸发压力会引起工质泄漏量的增加

进而造成综合环境影响(火用)效率并不高

所以综合考虑环保和循环性能时

亚临界ORC系统是较好的选择.

Abstract

In order to consider thermal economic performance and environmental impact of an organic Rankine cycle(ORC)system

the exergy parameter is used to quantify the environment influence of working fluids and composite performance indicator "comprehensive exergy efficiency integrated environmental influence" is proposed

which combines the environmental effect and cycle thermal economic performance. At thermal source of 150℃

the performance of working fluids of subcritical and transcritical ORC systems is evaluated by the composite performance indicator. Results show that R123 and R32 are suitable for subcritical and transcritical ORC systems respectively when considering the cycle thermal economic performance and refrigerant environmental impact. Although the net power output of transcritical ORC system is higher

the composite performance indicator shows that due to its high circulation evaporation pressure the leakage of working fluids increases. Therefore

subcritical ORC system is a better choice with considering the environmental protection and circulation performance.

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