Dynamic test on waste heat recovery system with organic Rankine cycle

被引：0
|
作者：
Zhi-qi Wang
Li-wen Liu
Xiao-xia Xia
Nai-jun Zhou
机构：
[1] Xiang Tan University,Institute of Mechanical Engineering
[2] Central South University,School of Energy Science and Engineering
来源：
Journal of Central South University | 2014年 / 21卷
关键词：
organic Rankine cycle; waste heat recovery; dynamic performance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Dynamic performance is important to the controlling and monitoring of the organic Rankine cycle(ORC) system so to avoid the occurrence of unwanted conditions. A small scale waste heat recovery system with organic Rankine cycle was constructed and the dynamic behavior was presented. In the dynamic test, the pump was stopped and then started. In addition, there was a step change of the flue gas volume flow rate and the converter frequency of multistage pump, respectively. The results indicate that the working fluid flow rate has the shortest response time, followed by the expander inlet pressure and the expander inlet temperature. The operation frequency of pump is a key parameter for the ORC system. Due to a step change of pump frequency (39.49–35.24 Hz), the expander efficiency and thermal efficiency drop by 16% and 21% within 2 min, respectively. Besides, the saturated mixture can lead to an increase of the expander rotation speed.
引用
收藏
页码：4607 / 4612
页数：5
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