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航空学报  2013 

舱外航天服生命保障冷电联储系统性能分析

DOI: 10.7527/S1000-6893.2013.0160, PP. 1285-1292

Keywords: 舱外航天服,冷电联储,燃料电池,热驱制冷,储氢合金,生命保障

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Abstract:

基于质子膜燃料电池(PEMFC)和热驱制冷,提出一种舱外航天服冷电联储方法,根据热力学总能理论,通过能量的梯级利用和不同形式的能量联产来实现舱外航天服生命保障系统冷电联储、能源转化和环境控制一体化。对舱外航天服生命保障冷电联储系统进行了热力学分析,表明本文舱外航天服生命保障系统冷电联储方案与传统方案相比,能达到减少航天员出舱活动携带物品种类和提高能源利用率的目的。并重点对冷电联储系统储氢冷却器相关参数的选取对系统一次能源利用率及系统整体质量的影响进行分析,结果表明LaNi5和LmNi4.9Sn0.1较适合用于本文提出的舱外航天服生命保障冷电联储系统。

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