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Abstract
An experimental procedure for the determination of temperature dependence on thermal conductivity of foam insulations blown with condensable gases is presented. The procedure is used to investigate the effect of blowing agent on thermal conductivity of a polyurethane system blown with CFC-11 or HCFC-123, at various stages of its aging. A method to calculate the partial pressure of the blowing agent in the cell gas mixture of the test specimens, from the data on thermal conductivity, is also presented.
An experimental procedure for the determination of temperature dependence on thermal conductivity of foam insulations blown with condensable gases is presented. The procedure is used to investigate the effect of blowing agent on thermal conductivity of a polyurethane system blown with CFC-11 or HCFC-123, at various stages of its aging. A method to calculate the partial pressure of the blowing agent in the cell gas mixture of the test specimens, from the data on thermal conductivity, is also presented.
Date
9/1989
9/1989
Author(s)
M Kumaran; M Bomberg; R Marchand; M Ascough; J Craezzo
M Kumaran; M Bomberg; R Marchand; M Ascough; J Craezzo
Page(s)
30
30
Keyword(s)
CFC 11; HCFC 123; thermal conductivity; blowing agent; PUF;
CFC 11; HCFC 123; thermal conductivity; blowing agent; PUF;