Multi-objective optimization of Rankine cycle using R245fa/pentane based on liquid-vapor separation

HUANG Renlong; LUO Xianglong; LIANG Zhihui; CHEN Ying

doi:10.11949/j.issn.0438-1157.20171182

您当前的位置：

首页 >

文章列表页 >

Multi-objective optimization of Rankine cycle using R245fa/pentane based on liquid-vapor separation

更新时间：2025-12-10

- Multi-objective optimization of Rankine cycle using R245fa/pentane based on liquid-vapor separation
- CIESC Journal Issue 5, Pages: 2040-2048(2018)
- 作者机构：
  
  广东工业大学材料与能源学院,广东,广州,510006
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171182
  CLC： K284.1
- Online First：05 May 2018，
  
  Published：05 May 2018
- 稿件说明：
移动端阅览
HUANG Renlong, LUO Xianglong, LIANG Zhihui, et al. Multi-objective optimization of Rankine cycle using R245fa/pentane based on liquid-vapor separation[J]. CIESC Journal, 2018, (5): 2040-2048.
DOI：

HUANG Renlong, LUO Xianglong, LIANG Zhihui, et al. Multi-objective optimization of Rankine cycle using R245fa/pentane based on liquid-vapor separation[J]. CIESC Journal, 2018, (5): 2040-2048. DOI： 10.11949/j.issn.0438-1157.20171182.

摘要

有机朗肯循环（ORC）是一种利用低温余热进行发电的热电转换技术。由于热源温位低，导致其效率不高，设备投资成本高。因此，本文从降低系统成本和提高其热力性能角度出发，把分液冷凝技术运用于双压蒸发的非共沸ORC系统，利用NSGA-Ⅱ多目标算法对基本ORC（BORC），气液分离-双级蒸发ORC（DSORC），串联双级蒸发ORC（STORC）和分液冷凝-双级蒸发ORC（TLORC）四种系统的净输出功和比成本（SIC）进行优化对比。优化结果表明：在BORC系统中，多维偏好线性规划法（LINMAP）优化得出的点表明非共沸工质的净输出功分别要比纯R245fa和纯pentane高5.6%和14.0%。在DSORC系统中，LINMAP点表明非共沸工质的净输出功要比R245fa和pentane分别高1.2%和6.3%；在所研究的四种系统中，Pareto Front表明TLORC系统SIC最低，比BORC系统低5.4%，同时净输出功比BORC系统高4.86%。

Abstract

Organic Rankine cycle (ORC) is considered as a promising heat-to-power technology for low grade heat recovery. The thermal efficiency of ORC is low and investment cost of equipment is high as temperature of heat sources is low. Low thermal efficiency results in high investment cost of equipment. This work focuses on cutting costs and increasing power generation of ORC and proposes a liquid-separation condensation and two-stage evaporation zeotropic ORC system. Multi-objective optimization using NSGA-Ⅱ is conducted for the BORC

DSORC

STORC and TLORC using zeotropic (R245fa/pentane) or pure fluids (R245fa and pentane). The optimization results indicate that:the net power output of BZORC is 5.6% and 14.0% higher than that of R245fa and pentane when using LINMAP method optimization; LINMAP point shows that the net power output of DSORC is 1.2% and 6.3% higher than that of R245fa and pentane

respectively; Among these four cycle configurations

Pareto Front shows the SIC in TLORC using R245fa/pentane is the lowest

about lower by 5.4% than BORC

while the net power output is 4.86% higher than BZORC.

关键词

Keywords

references

Views

106

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Working fluid screening and thermodynamic optimization of hazardous waste incineration coupled organic Rankine cycle system

Quantitative analysis for thermal economy of regenerative extraction organic Rankine cycle

Optimization method of coal-based cooling, heating and power co-generation

Deep reinforcement learning-based intelligent production scheduling for a heterogeneous production line plants

Construction of transition metal-based nitrogen-doped carbon and their desulfurization performance

Related Author

ZHANG Manzheng

XIAO Meng

YAN Peiwei

MIAO Zheng

XU Jinliang

JI Xianbing

LIU Qiang

SHEN Aijing

Related Institution

Beijing Key Laboratory of Multi-phase Flow and Heat Transfer of Low-grade Energy (North China Electric Power University)

清华大学热科学与动力工程教育部重点实验室, 二氧化碳资源化利用与减排技术北京市重点实验室

Beijing Key Laboratory of Multi-phase Flow and Heat Transfer of Low-grade Energy (North China Electric Power University)

School of Chemical Engineering and Technology, Xi’an Jiaotong University

Department of Automation, China University of Petroleum

⁰