A space power system of free piston Stirling generator based on potassium heat pipe
A space power system of free piston Stirling generator based on potassium heat pipe
复制标题
基于钾热管的自由活塞斯特林发电机空间动力系统
DOI：
10.1007/s11708-019-0655-6
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发表时间：
2020-03
期刊：
影响因子：
--
通讯作者：
Gu HU
中科院分区：
文献类型：
--
作者：
Mingqiang LIN;Jian MOU;Chunyun CHI;Guotong HONG;Panhe GE;Gu HU
研制了一种基于钾热管的自由活塞式斯特林发生器（FPSG）动力系统。由于长寿命、高可靠性和高整体热效率的优点，FPSG是核能的一个有前途的候选者，特别是在空间探索中。本文简要介绍了基于核反应堆的空间用FPSG的研究进展。设计了一种重量仅为4.2kg的新型浮式平台蒸汽发生器，并利用Sage软件对其进行了一维热力学建模，以评估其性能。实验结果表明，该FPSG可提供142.4 W，热电效率接近17.4%。此外，还进行了四台FPSG和钾热管集成的动力系统，并进行了单机故障试验。结果表明，该系统可以提供300 W的电功率，总热效率为7.3%。因此，该电源系统是可行的，具有广阔的前景。
The power system of a free piston Stirling generator (FPSG) based on potassium heat pipes has been developed in this paper. Thanks to the advantages of long life, high reliability, and high overall thermal efficiency, the FPSG is a promising candidate for nuclear energy, especially in space exploration. In this paper, the recent progress of FPSG based on nuclear reactor for space use was briefly reviewed. A novel FPSG weighted only 4.2 kg was designed, and one dimensional thermodynamic modeling of the FPSG using Sage software was performed to estimate its performance. The experiment results indicated that this FPSG could provide 142.4 W at a thermal-to-electric efficiency of nearly 17.4%. Besides, the power system integrated with four FPSGs and potassium heat pipes was performed and the single machine failure test was conducted. The results show that this system could provide an electrical power of 300 W at an overall thermal efficiency of 7.3%. Thus, it is concluded that this power system is feasible and will have a great prospect for future applications.
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通讯作者：
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DOI：
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