摘要
为了给载人航天器生命保障系统的设计提供依据，对处理载人航天器废水的热电集成薄膜蒸发系统作了热分析并用数值方法进行了验证。分析中将补充废水带入的热量忽略，从而使整个分析过程得到了简化，并得出半导体制冷元件的制冷系数ε是决定系统热性能的关键参数这一重要结论，ε越大，系统热性能越好，而ε增大造成的洁净水产率降低可以由制冷元件数目增加得以弥补；ε主要决定于废水侧换热温差，因此提高废水侧换热能力是提高系统性能的关键。
In order to provide design basis for life support system in manned
spacecraft, thermal performance was analyzed on Thermoelectric Integrated Membrane
Evaporation Subsystem (TIMES) which is used to recover waste water of manned spacecraft.
The system was simplified by ignoring pretreated waste water which bring in very little amount
of heat. The analysis was verified by numerical simulation. Analysis and numerical simulation
demonstrate that the coefficient of performance of semiconductor refrigerator, ε , is a key
parameter governing thermal performance of the TIMES. The larger the ε , the better the
thermal performance. The decrease amount of product water generated by increment of ε
can be compensated with increasing the number of semiconductor refrigerator. Moreover, the
definition of ε shows that ε depends mainly on the temperature difference of waste water
side in TIMES, which means TIMES thermal performance depends mainly on the heat transfer
ability of waster water side.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1999年第6期113-115,127,共4页
Journal of Tsinghua University(Science and Technology)
基金
国家"八六三"高技术项目
关键词
废水处理
TIMES
载人航天器
spacecraft
waste water processing
thermoelectric
integrated membrane evaporation
life support
