Liquid Droplet Radiators for Heat Rejection in Space
Liquid Droplet Radiators for Heat Rejection in Space
复制标题
用于空间散热的液滴散热器
DOI：
10.2514/3.62557
复制
发表时间：
1981
影响因子：
--
通讯作者：
A. Hertzberg
中科院分区：
文献类型：
--
作者：
A. Mattick;A. Hertzberg
本发明描述了一种用于空间散热的散热器，其利用液滴流来辐射废热。单位质量的大表面积使得液滴散热器比管和翅片散热器轻一个数量级。液滴的产生和收集以及向液体的热传递可以通过常规技术的适度扩展来实现。低蒸气压液体是可用的，其覆盖辐射温度范围250 K-1000 K，蒸发损失可忽略不计（硅油：250 K-350 K;液态金属共晶：370 K-650 K;液态锡：550 K-1000 K）。因此，液滴散热器可以用于空间中的广泛的排热应用。讨论了三种应用-高温朗肯循环的排热、光伏电池的冷却和太空制冷的低温排热-以说明散热器的多功能性。
A radiator for heat rejection in space is described which utilizes a stream of liquid droplets to radiate waste heat. The large surface area per mass makes the liquid droplet radiator an order of magnitude lighter than tube and fin radiators. Generation and collection of the droplets, as well as heat transfer to the liquid, can be achieved with modest extensions of conventional technology. Low vapor pressure liquids are available which cover a radiating temperature range 250 K-1000 K with negligible evaporation losses (silicone oils: 250 K-350 K; liquid metal eutectics: 370 K-650 K; liquid tin: 550 K-1000 K). The droplet radiator may thus be employed for a wide range of heat rejection applications in space. Three applications—heat rejection for a high temperature Rankine cycle, cooling of photovoltaic cells, and low temperature heat rejection for refrigeration in space—are discussed to illustrate the versatility of the radiator.