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Development of a Capillary Structure for the Hermes Water Evaporator Assembly
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English
Abstract
The development of a capillary structure for the Hermes Water Evaporator Assembly (WEA) is described. The WEA is one of the heat sinks of the (Active Thermal Control Systems) water cooling loop. The capillary structure is needed to retain and distribute evaporating water on the internal surface of an aluminium cylinder facing the cold two phase side of the heat exchanger.
It consists of grooves which are very similar to the axial grooves of aluminium/ammonia heat pipes.
The evaporative heat exchanger is described, the requirements to the capillary structure are reported, analysis and design of the capillaries are outlined and finally the description of the set-up and the results of a subscale test are presented.
Authors
Citation
Meyer, R. and Müller, R., "Development of a Capillary Structure for the Hermes Water Evaporator Assembly," SAE Technical Paper 911484, 1991, https://doi.org/10.4271/911484.Also In
References
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- Burgio, F. Leidinger, B.J.G. The Water Evaporator Assembly: A Heat Sink for HERMES ATCS 21st Intersociety Conference on Environmental Systems San Francisco, California, U.S.A. July 15 - 18 1991
- Brennan, P.J. Kroliczek, E.J. Heat Pipe Design Handbook B&K Engineering Greenbelt, Maryland, U.S.A. June 1979 NASA Report N81-70112
- Kamotani, Y. Evaporator Film Coefficients of Grooved Heat Pipes Proceedings of 3rd International Heat Pipe Conference Palo Alto, California, U.S.A. May 22 - 24 1978
- Leidinger, B.J.G. Müller, R. Rohr, R. Technological Demonstration Tests of Hermes Water Evaporator Assembly 22nd Int. Conf. on Environmental Systems 1992
- Landolt-Börnstein 476 Springer Publishing Company 1956