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Erschienen in:
1994 | OriginalPaper | Buchkapitel
Heat transfer in foams
verfasst von : Leon R. Glicksman
Erschienen in: Low density cellular plastics
Verlag: Springer Netherlands
Enthalten in: Professional Book Archive
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One of the primary applications of polymeric foams is for thermal insulations. Because of the modest proportion of solid in a foam and the consequent large volume fraction of gas which has a much lower thermal conductivity the resultant conductivity of the foam is much less than that of a solid body made of the same material. In this chapter the foam conductivity refers to the effective value exhibited by the foam. It is the ratio of the rate of heat transfer per unit cross-sectional area to the applied temperature difference.