Transient Condensation on Insulating Substrates for Cryogenic Application
During the initial stages of the pressurized-discharge process of a cryogenic liquid from a container, the consumption of pressurant is high. This results from an initially high rate of condensation of pressurant on the colder internal surfaces of the container including the liquid-gas interface. To alleviate this condition and to effect an over-all reduction in the consumption of pressurant gas, it has been proposed to line the inside surfaces of such containers with a low-density, insulating material. An example of such an installation is provided by Scott . The liquid-gas interface could be covered in a similar manner (with a singly-or multiply-connected, floating piston). The purpose of such an installation is to provide an interface between pressurant and the interior which would possess characteristics of rapid thermal response.
KeywordsControl Surface Saturation Temperature Condensate Film Transient Growth Heat Transfer Phenomenon
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