Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Thermal conductivity - k-values - vs. temperature.
Polyurethane is an organic polymer formed by reacting a polyol (an alcohol with more than two reactive hydroxyl groups per molecule) with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives.
Polyurethanes are flexible foams used in mattresses, chemical-resistant coatings, adhesives and sealants, insulation for buildings and technical applications like heat exchangers, cooling pipes and much more.
Thermal conductivity vs. temperature are indicated in the charts below:
T( oC) = 5/9[T( oF) - 32] 1 W/(m K) = 6.935 (Btu in)/(h ft² °F)
Related Topics Heat loss from pipes, tubes and tanks - with and without insulation - foam, fiberglass, rockwool and more. Heat transfer and heat loss from buildings and technical applications - heat transfer coefficients and insulation methods to reduce energy consumption. Related Documents Thermal conductivity of calcium silicate insulation - temperature and k-values. Thermal conductivity of fiberglass insulation - temperature and k-values. Temperature limits for commonly used insulation materials. Thermal conductivity - k-values - vs. temperature. Thermal conductivity - k-values - vs. temperature. Heat loss (W/m) from 1/2 to 6 inches insulated pipes - ranging insulation thickness 10 to 80 mm and temperature differences 20 to 180 degC. Heat loss (W/ft) diagrams for 1/2 to 6 inches insulated pipes - ranging insulation thickness 0.5 to 4 inches and temperature differences 50 to 350 degF. Recommended insulation thickness for heating systems like hot water and low, medium or high pressure steam systems. Chemical resistance of Polyurethane (PUR). Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches. The ability of a material to resist flow of heat. Heat loss through common building elements due to transmission, R-values and U-values - imperial and SI units. Figures and tables showing thermal conductivity of water (liquid and gas phase) with varying temperature and pressure, SI and Imperial units. Search
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