Working fluids and optimization of operation conditions for medium-low temperature solar based organic rankine cycle

WU Xiaonan; ZHANG Yanping; HUANG Shuhong

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Working fluids and optimization of operation conditions for medium-low temperature solar based organic rankine cycle

更新时间：2025-09-28

- Working fluids and optimization of operation conditions for medium-low temperature solar based organic rankine cycle
- Thermal Power Generation Vol. 44, Issue 6, Pages: 31-35(2015)
- 作者机构：
  
  华中科技大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM615
- Published：2015
- 稿件说明：
移动端阅览
WU Xiaonan, ZHANG Yanping, HUANG Shuhong. Working fluids and optimization of operation conditions for medium-low temperature solar based organic rankine cycle[J]. Thermal power generation, 2015, 44(6): 31-35.
DOI：

WU Xiaonan, ZHANG Yanping, HUANG Shuhong. Working fluids and optimization of operation conditions for medium-low temperature solar based organic rankine cycle[J]. Thermal power generation, 2015, 44(6): 31-35. DOI：

摘要

针对150~400℃太阳能有机朗肯循环(ORC)发电系统

选取R245fa、正戊烷、环己烷、甲苯、十二烷、癸烷、D4和MDM 8种工质

根据热力学第一定律

进行不同工况条件下太阳能带回热ORC系统的性能计算

并从工质蒸发压力、工质蒸发温度以及汽轮机进出口压力比3方面进行循环性能分析。结果表明:固定蒸发温度时

除R245fa和环己烷外

所有工质带回热的ORC效率随蒸发压力提高持续减小;提高工质蒸发温度和压比有利于提高所有工质循环效率;R245fa和正戊烷适用于200℃以下带回热ORC

其余工质更适用于200℃以上带回热ORC。

Abstract

The organic rankine cycle(ORC)generation technology uses organic fluids instead of water/steam to generate power through Rankine cycle and is mainly applied in waste heat recovery but not the solar thermal generation field.For solar heat source with different temperature levels(from 150 ℃ to400 ℃)

eight organic fluids such as R245 fa

n-pentane

cyclohexane

toluene

dodecane

decane

D4 and MDM were chosen as the candidate working fluids to carry out performance calculation for solar ORC power generation system with internal heat exchanger(IHE)under different conditions

according to the first law of thermodynamics.Moreover

the cycle performance was investigated from three aspects

like the evaporating pressure

evaporating temperature and pressure ratio of the turbine.The results show that

at a certain evaporation temperature

the cycle efficiencies of all the candidate working fluids but R245 fa and cyclohexane decreased with the increasing evaporating pressure.Increasing the evaporating pressure and pressure ratio helped to increase the cycle efficiencies of all the candidate fluids.Considering from all the factors

the R24 fa and n-pentane are suitable for ORC systems with IHE at temperature below 200 ℃

while the rest fluids were more proper to be used in ORC systems with IHE at temperature above 200 ℃.

关键词

Keywords

references

Views

423

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Review on key technologies of concentrating solar thermal power generation systems

Thermal performance analysis for a cascade heat exchange power generation system based on ORC

Research progress in low grade energy generation systems

Research progress of thermal energy storage technology in solar thermal power generation and combined heat and power generation

Optimization design of solar multiple and thermal storage hour for DSG tower power generation

Related Author

GU Yujiong

GENG Zhi

ZHANG Chen

WANG Peng

WU Ya

YUE Chen

ZHU Bangshou

HUANG Huilan

Related Institution

National Thermal Power Engineering & Technology Research Center,North China Electric Power University

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics

School of Mechanical Engineering, Guangxi University

School of Electrical Engineering, Guangxi University

School of Energy, Power and Mechanical Engineering, North China Electric Power University

AI问答

⁰