化工进展2017，Vol.36Issue(5)：1642-1648,7.DOI:10.16085/j.issn.1000-6613.2017.05.012
有机朗肯循环用涡旋膨胀机的改进与实验研究
Improvement and experimental research on the performance of scroll expander using organic Rankine cycle(ORC)
摘要
Abstract
The current efficiency of the organic Rankine cycle(ORC)is generally low.The performance of the expander has a direct impact on the cycle efficiency. In order to enhance the scroll expander performance of organic Rankine cycle,the scroll expander was improved. The movable scroll wraps do not block the inlet hole,the inlet and outlet are distributed symmetrically,and the scroll profile modification is adopted. The influence of inlet pressure,flow rate and rotating speed of the scroll expander on its performance was studied. The experimental results showed that the maximum external isentropic efficiency of the modified scroll expander would be up to 53%,and there is an optimal pressure value,which makes the maximum external isentropic efficiency of the expander. The increase of the inlet flow rate will increase the rotating speed and the output power of the expander. The changes of isentropic efficiency show parabolic curves,and different loads correspond to different optimal flow values,which makes the maximum external isentropic efficiency of the expander. Different loads of the expander have different optimal speeds,making the maximum output power,the optimal speed is larger as the inlet pressure increases. Research results showed that it is feasible to improve the scroll expander,and the experiments of expander point out the direction for further improvement.关键词
有机朗肯循环/涡旋膨胀机/等熵效率/性能实验Key words
organic Rankine cycle(ORC)/scroll expander/isentropic efficiency/performance experiment分类
能源科技引用本文复制引用
李垒,陶乐仁,申玲,胡永攀,李庆普..有机朗肯循环用涡旋膨胀机的改进与实验研究[J].化工进展,2017,36(5):1642-1648,7.基金项目
上海市动力工程多相流动与传热实验室开放基金项目(13DZ2260900). （13DZ2260900）
