有机朗肯循环系统孤网运行的实验研究

doi:10.16085/j.issn.1000-6613.2017-0194

化工进展 ›› 2017, Vol. 36 ›› Issue (10): 3577-3583.DOI: 10.16085/j.issn.1000-6613.2017-0194

有机朗肯循环系统孤网运行的实验研究

曹泷, 刘秀龙, 张鸣, 徐进良

华北电力大学低品位能源多相流与传热北京市重点实验室, 北京 102206

收稿日期:2017-02-08 修回日期:2017-02-23 出版日期:2017-10-05 发布日期:2017-10-05
通讯作者: 徐进良,教授,博士生导师,主要从事多相流传热和低品位热源利用技术研究.
作者简介:曹泷(1989-),男,博士研究生,主要从事低品位热源利用技术研究.E-mail:caos0708@163.com.
基金资助:
国家自然科学基金国际合作与交流项目（51210011）及中央高校基本科研业务费专项项目（2016XS23）。

Experimental study of an integrated organic Rankine cycle system under isolated network operating condition

CAO Shuang, LIU Xiulong, ZHANG Ming, XU Jinliang

Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy, North China Electric Power University, Beijing 102206, China

Received:2017-02-08 Revised:2017-02-23 Online:2017-10-05 Published:2017-10-05

摘要/Abstract

摘要： 针对孤网环境下有机郎肯（ORC）系统的实际应用，以R245fa为工质，采用单螺杆膨胀机与同步发电机同轴联动，设计集成了一台10kW级的小型ORC机组，并以10.5kW的卤素灯阵作为孤网负载，就地消耗机组输出的电能。实验中在115℃热源条件下通过调整负载容量改变ORC系统的运行工况，对不同负载与膨胀机转速下ORC系统性能进行实验研究。实验数据表明：单螺杆膨胀机的性能较为优良，其等熵效率最大值为84.1%，随负载及膨胀机转速的增加而减小。工质泵的实际运行效率为8.31%～19.10%，其等熵效率随负载及转速增大而变大，最大值为73.97%。工质泵的机械效率较低，仅为19.22%～36.82%，与负载及膨胀机转速之间没有明显关系，较低的机械效率是工质泵实际运行效率偏低的主要原因。机组电功随负载及膨胀机转速的增加而增大，最大发电量与发电效率分别为5.86kW与7.38%。

关键词: 有机朗肯循环, 孤网, R245fa, 单螺杆膨胀机, 系统集成

Abstract: The test results of a 10kW integrated organic Rankine cycle(ORC)system with R245fa as the working fluid under isolated network operating condition were presented in this paper. A single screw expander was integrated in the system to drive the synchronous generator to generate electric power. The 10.5kW halogen lamp array was used as the load to consume the generated electric power. Two independent parameters,the load capacity and the expander speed,were varied during the test. The ORC system characteristics were analyzed at the heat source temperature of 115℃. The experimental data showed that the single screw expander performed very well. The maximum expander isentropic efficiency was 84.1%,which decreased with increase of load and expander speed. The maximum isentropic efficiency of working fluid pump was 73.97%,which increased with the increase of load and expander speed. The mechanical efficiency of the working fluid pump was only 19.22%-36.82%,and had no obvious relationship with the load and the expander speed. The generated electric power increased with the increase of load and expander speed. The maximum generated electric power and the electrical efficiency were 5.86kW and 7.38%,respectively.

Key words: organic Rankine cycle, isolated network, R245fa, single screw expander, system integration

中图分类号:

TK11⁺5

曹泷, 刘秀龙, 张鸣, 徐进良. 有机朗肯循环系统孤网运行的实验研究[J]. 化工进展, 2017, 36(10): 3577-3583.

CAO Shuang, LIU Xiulong, ZHANG Ming, XU Jinliang. Experimental study of an integrated organic Rankine cycle system under isolated network operating condition[J]. Chemical Industry and Engineering Progress, 2017, 36(10): 3577-3583.

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有机朗肯循环系统孤网运行的实验研究

Experimental study of an integrated organic Rankine cycle system under isolated network operating condition

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