Comparative study of impact of compressor speed on system performance subject to micro-gravity

2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2016-07-18 DOI:10.1109/ICMAE.2016.7549527

Rui Ma, Yu‐Ting Wu, C. Du, Xia Chen, De-lou Zhang, Chong-fang Ma

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引用次数: 3

Abstract

Vapor compression heat pump has good prospects in future large-scale spacecraft thermal control technology. Compressor is a key component in vapor compression heat pump. It is essential to study its adaptability under micro-gravity. In this paper, an experimental system was built up to test the performance of inverted compressor subjected to micro-gravity. The performance of compressor upright and inverted was compared. The influence of compressor speed on the performance of vapor compression heat pump was investigated. The results showed that the inverted compressor could be considered gravity-independent because of normal operation. Compressor discharge temperature and power increased with compressor speed. However, the COP(Coefficient of Performance) was less than that of compressor upright. The maximum COP obtained with upright and inverted compressor were 8.4 and 7.6, respectively. The experiment subject to micro-gravity of vapor compressor heat pump provides an experimental basis and lays foundation for future space applications.

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微重力作用下压缩机转速对系统性能影响的对比研究

蒸汽压缩热泵在未来大型航天器热控技术中具有良好的应用前景。压缩机是蒸汽压缩热泵的关键部件。研究其在微重力环境下的适应性是十分必要的。本文建立了一套试验系统，测试了倒立式压缩机在微重力作用下的性能。比较了压缩机直立和倒立时的性能。研究了压缩机转速对蒸汽压缩热泵性能的影响。结果表明，在正常运行的情况下，倒置压缩机可以认为是与重力无关的。压缩机转速越大，排气温度越高，排气功率越大。但性能系数(COP)比压缩机直立时要小。立式压缩机和倒立压缩机的最大COP分别为8.4和7.6。该实验为蒸汽压缩机热泵在微重力环境下的应用提供了实验基础，为今后的空间应用奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)

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