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A theoretical model of the heat transfer processes in multilayer insulation

โœ Scribed by I.S. Zhitomirskij; A.M. Kislov; V.G. Romanenko

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
400 KB
Volume
19
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

A theoretical mode/of heat-mass-transfer in a perforated insulation, which takes into account the simultaneously and mutually acting mechanisms of heat transfer by a radiation, gas and spacer heat conduction, is proposed. The heat transfer and gas flow are described by equations for the densities of molecule flows, taking into consideration the spacer resistances and radiant flows in the spaces between the screens, and by energy equations defining the screen temperature distribution over the stack thickness as a function of time. Theoretical values for stationary heat transfer characteristics in the insulation systems of interest are given. The results obtained are compared with the experimental data.

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