THERMAL INSULATION


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THERMAL INSULATION
THERMAL INSULATIONMaterials or combinations of materials which have air- or gas-filled pockets or void spaces that retard the transfer of heat with reasonable effectiveness are thermal insulators. Such materials may be particulate and/or fibrous, with or without binders, or may be assembled, such as multiple heat-reflecting surfaces that incorporate air- or gas-filled void spaces.The ability of a material to retard the flow of heat is expressed by its thermal conductivity (for unit thickness) or conductance (for a specific thickness). Low values for thermal conductivity or conductance (or high thermal resistivity or resistance value) are characteristics of thermal insulation.
Citation
Dr. Don W. Green; Dr. Marylee Z. Southard: Perry's Chemical Engineers' Handbook, 9th Edition. THERMAL INSULATION, Chapter (McGraw-Hill Professional, 2019), AccessEngineering Export