Abstract
The thermal conductivity and heat flux of phenolic foams applied for insulation of metal pipes were measured, and effectivity of the insulation was estimated at the model conditions. Examinations of real pipelines after many years of application in channelless heat lines were undertaken. It was shown that the developed phenolic foam demonstrated, after six years of application, good stability. Technico-economic analysis of the use of the foam is presented, and comparison with other types of pipe insulation materials is made. The perspectives of developed foams for heat insulation of pipelines are outlined, and further research and applied problems for phenolic foams are formulated and discussed.
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