High Temperature mechanically pumped fluid loop for space applications - working fluid selection
High Temperature mechanically pumped fluid loop for space applications - working fluid selection
复制标题
用于太空应用的高温机械泵送流体回路 - 工作流体选择
DOI：
10.4271/2004-01-2415
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
G. Birur
中科院分区：
文献类型：
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作者：
A. Paris;P. Bhandari;G. Birur
机械泵送单相流体回路越来越多地用于空间应用中的排热目的。使用这种技术的地球轨道飞行任务的例子包括NSTS航天飞机（水和氟利昂回路）和国际空间站（水和氨回路）。对于深空任务，火星探路者（1996年）和火星探测漫游者（2003年）任务都使用机械泵送的氟利昂-I 1回路作为其主要的热排斥系统（HRS）。机械泵送回路特别适合于排除航天器的大量废热，未来的飞行任务中含有热能耗散极高的部件（如雷达仪器、放射性同位素基电源），是使用这种回路的理想选择。然而，机械泵送回路的先前实施方案被设计用于中等温度（低于600 ℃），并且因此将需要相对较大的散热器以将高热负荷排出到空间。设计用于较高操作温度的回路将允许在质量有效热控制系统的约束内排出大量的热。
Mechanically pumped single-phase fluid loops are increasingly being used for heat rejection purposes in space applications. Examples of Earth orbiting missions using this technology include NSTS Shuttles (water and Freon-based loops) and the International Space Station (water and ammonia-based loops). For deep space missions, both the Mars Pathfinder (1996) and Mars Exploration Rover (2003) missions used mechanically pumped Freon-I 1 loops for their primary Heat Rejection Systems (HRS.) Mechanically pumped loops are particularly well suited for rejecting large amounts of waste heat from spacecraft and future missions incorporating components with extremely high thermal energy dissipation (e.g. radar instruments, Radioisotope-based power sources) are ideal candidates for their use. However, previous implementations of mechanically pumped loops were designed for moderate temperatures (below 6OOC) and, thus, would require relatively large radiators to reject high heat loads to space. Loops designed for a higher operating temperature would allow large amounts of heat to be rejected within the constraints of a mass efficient thermal control system.