空间站乘员睡眠区二氧化碳聚集现象

付仕明; 徐小平; 李劲东; 潘增富

空间站乘员睡眠区二氧化碳聚集现象

中国空间技术研究院,北京 100094

详细信息

作者简介:
付仕明(1978-),男,云南昆明人,博士生,castfushm@yahoo.com.cn.

中图分类号: V 476.1; V 444.3; V 7
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- 被引次数: 0
出版历程
- 收稿日期: 2006-07-05
- 网络出版日期: 2007-05-31

Carbon dioxide accumulation of space station crew quarters

China Academy of Space Technology,Beijing 100094, China

摘要

摘要: 为了分析乘员在没有良好通风的压力舱内停留时,呼出CO₂的聚集过程并评估其可能导致的医学危害,建立了乘员在特定空间站睡眠舱的计算流体动力学模型,对乘员在睡眠区的呼吸过程进行了非稳态模拟.模拟中乘员的CO₂呼出浓度和肺通气量根据生理实验随CO₂吸入浓度变化.通过模拟给出了睡眠区典型位置处CO₂分压随时间的变化规律.最后提出了无通风条件下乘员在睡眠区停留的最大容许时间,睡眠区CO₂浓度监测仪的布置原则和类似情况下为保障乘员生命安全可采取的一些措施.
- 空间站 /
- 二氧化碳 /
- 环境控制与生命保障 /
- 计算流体动力学
Abstract: In order to analyze the accumulation process of CO₂ expired by crew in pressure cabin without proper ventilation and to evaluate the possible medical hazards, a computational fluid dynamics (CFD)model of crew staying in a given space station quarter was built to simulate the unsteady process of respiration. The concentration of CO₂ in exhaled air and the pulmonary ventilation varied with the concentration of CO₂ in the inhaled air based on physiological experiments. The results for partial pressure of CO₂ at typical locations and different intervals were presented based on simulation. Finally, a maximum allowable time that crew can stay in quarters without ventilation, some placement principles of CO₂ monitors and some precautions ensured crew-s life safety in similar conditions were proposed.
- space station /
- carbon dioxide /
- environmental control and life support /
- computational fluid dynamics

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参考文献(1)

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