| 舱外航天服冷热电一体化系统性能分析 |
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| 引用本文： | 周国栋,高峰,李运泽,王胜男,周航.舱外航天服冷热电一体化系统性能分析[J].航天器环境工程,2013,30(2):188-195. |
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| 作者姓名： | 周国栋 高峰 李运泽 王胜男 周航 |
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| 作者单位： | 1. 中国航天员科研训练中心,北京,100094
2. 北京航空航天大学,北京,100191 |
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| 基金项目： | 人因工程重点实验室开放基金资助项目 |
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| 摘 要： | 文章提出了一种舱外航天服冷热电一体化(Combined Cooling-Heating-Power,CCHP)系统,该系统的主要组件有质子交换膜燃料电池、热驱制冷装置、金属氢化物储氢装置和辐射器等.在冷热电一体化系统的冷电匹配方法上提出了“以电定冷”方案,按照该方案计算了一组典型工况下系统的工作状态,分析了燃料电池的工作温度、工作电流密度和工作压力对系统质量和消耗性工质损失的影响.结果表明,该舱外航天服冷热电一体化系统在质量大小方面可以接受,在消耗性工质损失方面比水升华器冷源/蓄电池电源方案小得多；且降低燃料电池工作温度和压力、增大燃料电池工作电流密度,均能够减小系统质量、降低系统消耗性工质损失.
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| 关 键 词： | 舱外航天服 冷热电一体化 燃料电池 热驱制冷 金属氢化物储氢 辐射散热 |
Performance of extravehicular activity space suit: a combined system of cooling, heating and power |
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| Zhou Guodong,Gao feng,Li Yunze,Wang Shengnan and Zhou Hang.Performance of extravehicular activity space suit: a combined system of cooling, heating and power[J].Spacecraft Environment Engineering,2013,30(2):188-195. |
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| Authors: | Zhou Guodong Gao feng Li Yunze Wang Shengnan and Zhou Hang |
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| Institution: | 1. Astronaut Research and Training Center of China, Beijing 100094, China;2. Beijing University of Aeronatical and Astronatical, Beijing 100191, China;1. Astronaut Research and Training Center of China, Beijing 100094, China;2. Beijing University of Aeronatical and Astronatical, Beijing 100191, China;1. Astronaut Research and Training Center of China, Beijing 100094, China;2. Beijing University of Aeronatical and Astronatical, Beijing 100191, China;1. Astronaut Research and Training Center of China, Beijing 100094, China;2. Beijing University of Aeronatical and Astronatical, Beijing 100191, China;1. Astronaut Research and Training Center of China, Beijing 100094, China;2. Beijing University of Aeronatical and Astronatical, Beijing 100191, China |
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| Abstract: | A combined cooling, heating and power (CCHP) system for extravehicular activity (EVA) space suit is proposed in this paper. The CCHP system mainly consists of a proton exchange membrane fuel cell (PEMFC), a heat driving cooling device, a metal hydride hydrogen storage device and a radiator. A Power Supply Priority scheme is proposed for the CCHP system in order to match both the power supply and the cooling request. Based on the PSP scheme, the operation state parameters and the mass of the CCHP system are calculated under a typical working condition. Influences of the PEMFC's working temperature, the current density and the pressure on the system mass and the expendable material loss are analyzed. The results show that the mass of the EVA space suit CCHP system is acceptable, and the expendable material loss is much less than that of the water sublimator/storage battery scheme. Lowering the PEMFC working temperature and pressure, or raising the PEMFC's current density, would lead to a lighter system and less expendable material loss. |
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| Keywords: | extravehicular activity space suit combined cooling fuel cell heat driving cooling metal hydride hydrogen storage radiation cooling |
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