低温热源有机物发电系统膨胀机性能分析
Expander Performance Analysis for Organic Power Generation System for Low Temperature Heat Sources
薄泽民 1桑振坤 1吕小静 1王羽平 1翁一武1
作者信息
- 1. 上海交通大学动力机械与工程教育部重点实验室,上海200240
- 折叠
摘要
有机物朗肯循环发电系统广泛应用于工业余热、太阳光热和地热等低温热源回收利用领域.作为关键做功部件,膨胀机的性能对有机物发电系统效率和输出功率有着重要的影响.考虑工质物性、环保特性,选用R600a为循环工质,详细研究了适用于两种不同功率等级的膨胀机的部件性能及循环特性.验证了有机物发电系统性能随着涡旋膨胀机和向心透平膨胀比的提高得到了提升,并探讨了改善系统发电性能的几种方法.
Abstract
The Organic Rankine cycle power generation systems are widely used in the field of low-temperature heat recycling of industrial waste heat,solar thermal and geothermal.As a key component of the power generation system for low temperature heat sources,the performance of the expanders has significant effect on the system efficiency and output power.Considering the thermodynamic property and environmental characteristics of the working fluids,R600a is selected as a proper working fluid and a detailed analysis of component performance and cycle characteristics for two kinds of output power levels is conducted.It is verified that the performance of the ORC power generation systems will be improved with the increase of expansion ratio of the scroll expander and radial turbine,then several measures to improve the system performance are proposed.
关键词
低温热源/有机物发电系统/涡旋膨胀机/向心透平Key words
low-temperature heat sources/organic power generation systems/scroll expander/radial turbine引用本文复制引用
基金项目
国家重点基础研究发展计划项目(2010CB227301)
国家自然科学基金(51376123)
出版年
2014
NETL
NSTL
维普
万方数据