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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2013, Vol. 34 ›› Issue (6): 1285-1292.doi: 10.7527/S1000-6893.2013.0160

• Fluid Mechanics and Flight Mechanics • Previous Articles     Next Articles

Characteristic Analysis of Extravehicular Spacesuit Life Support Cooling-power Integrated System

WANG Shengnan1, LI Yunze1, ZHOU Hang1, ZHOU Guodong2   

  1. 1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;
    2. National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing 100094, China
  • Received:2012-12-12 Revised:2013-03-05 Online:2013-06-25 Published:2013-03-12
  • Contact: 10.7527/S1000-6893.2013.0160 E-mail:liyunze@buaa.edu.cn
  • Supported by:

    Open Funding Project of National Key Laboratory of Human Factors Engineering (HF2011-K-05)

Abstract:

Based on the techniques of proton exchange membrane fuel cell (PEMFC) and heat-driven cooling system, a method of combined cooling-power for the life support system of an extravehicular activity spacesuit is proposed in this paper. This method aims to realize the integration of cooling and power, the transient of different energies and the control of the environment for the life support system of the extravehicular activity spacesuit with the theory of thermal board total energy which points the energy step used, heat recovery and the combined generation of different forms of energy. Thermodynamic analysis of the system is performed. Compared with the separate method used in the traditional spacesuit, the combined method can decrease the kinds of materials, and provide more efficient use of resources. In addition, the H2 utilization coefficient and the total mass of the whole integrated system which are influenced by the different thermal parameters chosen for the hydrogen storage cooler are analyzed in detail, which demonstrates that LaNi5 and LmNi4.9Sn0.1 can be considered for this cooling-power integrated system.

Key words: extravehicular spacesuit, cooling-power integration, fuel cell, heat-driven cooling, metal hydride, life support

CLC Number: