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基于质子交换膜燃料电池(PEMFC)和热驱制冷,提出一种舱外航天服生命保障系统冷热电一体化方案.在分别建立金属储氢装置、PEMFC、热驱制冷系统和辐射散热器数学模型的基础上,利用冷热电一体化的热力学分析理论和方法进行了典型案例的计算,并重点分析了核心构件热驱制冷装置的参数对舱外航天服生命保障系统性能的影响.与传统的冷热电分产舱外航天服生命保障系统比较,该系统仅消耗84.6g氢气,且不需要向空间排放工质,能源利用率高达85.29%,在工质消耗与能源利用率上有较大的优势.
Based on the proton exchange membrane fuel cell (PEMFC) and the thermal flooding refrigeration, a scheme of integration of thermal and electric power for the life safety system of the spacesuit spacesuit is put forward.On the basis of establishing the mathematical model of metal hydride storage device, PEMFC, thermal flooding system and radiation radiator mathematics Model based on the use of thermoelectric analysis theory and method of integrated thermoelectric calculation of a typical case, and focus on the analysis of the core components of the thermal flooding refrigeration equipment spacecraft life support performance impact. Compared with the life assurance system for spacecraft and spacesuit, the system only consumes 84.6g hydrogen and does not need to discharge the working fluid to the space. The energy utilization rate is as high as 85.29%, which is higher than that of the working fluid consumption and energy efficiency Big advantage.