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Removable insulation blankets for hot components: used to prevent heat from escaping components by covering the surface of component with insulation materials that slow the transfer of heat. Removable insulation blankets for cold components: used to prevent external heat from affecting a chilled pipe. Also used to prevent condensation from ...
The application of thermal pipe insulation introduces thermal resistance and reduces the heat flow. Thicknesses of thermal pipe insulation used for saving energy vary, but as a general rule, pipes operating at more-extreme temperatures exhibit a greater heat flow and larger thicknesses are applied due to the greater potential savings. [3]
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For insulation purposes, metal ducts are typically lined with faced fiberglass blankets (duct liner) or wrapped externally with fiberglass blankets (duct wrap). When necessary, a double walled duct is used. This will usually have an inner perforated liner, then a 1–2" (2.5-5 cm) layer of fiberglass insulation contained inside an outer solid pipe.
Thermal insulation material usually used is polyurethane foam or similar, with a thermal conductivity λ 50 of about 0.024–0.033 W/(m·K). While polyurethane has outstanding mechanical and thermal properties, the high toxicity of the [diisocyanates] required for its manufacturing has caused a restriction on their use. [ 2 ]
Insulation is a barrier material to resist/reduce substance (water, vapor, etc. ) /energy (sound, heat, electric, etc.) to transfer from one side to another. Heat/ Thermal Insulation is a barrier material to resist / block / reflect the heat energy (either one or more of the Conduction, Convection or Radiation) to transfer from one side to another.
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