Analysis Of Dewar And Transfer Line Cooldown In Superfluid Helium On-Orbit Transfer Flight Experiment (SHOOT)

Y. S. Ng; J. H. Lee

doi:10.1117/12.948335

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27 April 1988 Analysis Of Dewar And Transfer Line Cooldown In Superfluid Helium On-Orbit Transfer Flight Experiment (SHOOT)

Y. S. Ng, J. H. Lee

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Proceedings Volume 0973, Cryogenic Optical Systems and Instruments III; (1988) https://doi.org/10.1117/12.948335
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

The Superfluid Helium On-Orbit Transfer Flight Experiment (SHOOT) is designed to demonstrate the techniques and components required for orbital superfluid (He II) replenishment of observatories and satellites. One of the tasks planned in the experiment is to cool a warm cryogen tank and a warm transfer line to liquid helium temperature. A math model, based on single-phase vapor flow heat transfer, has been developed to predict the cooldown time, component temperature histories, and helium consumption rate, for various initial conditions of the components and for thermomechanical pump heater powers of 2 W and 0.5 W. This paper discusses the model and the analytical results, which can be used for planning the experiment operations and determining the pump heater power required for the cooldown operation.

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Y. S. Ng and J. H. Lee "Analysis Of Dewar And Transfer Line Cooldown In Superfluid Helium On-Orbit Transfer Flight Experiment (SHOOT)", Proc. SPIE 0973, Cryogenic Optical Systems and Instruments III, (27 April 1988); https://doi.org/10.1117/12.948335

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