Heat and Moisture Transfer in Clothing Systems. Part 2. Theoretical Consideration of the Effect of some Variables on Thermal Conductivity

The theoretical effect of several variables on the total thermal conductivity of a fibrous system was determined using derived mathematical relationships. The variables examined included percentage fibre content, fibre arrangement, environmental temperature, water, ice and water vapor diffusion. It...

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Bibliographische Detailangaben
1. Verfasser:	Crow, Rita M
Format:	Report
Sprache:	eng
Schlagworte:	ALIGNMENT ARCTIC REGIONS CANADA COLD WEATHER OPERATIONS DIRECTIONAL EQUATIONS FIBERS FOREIGN REPORTS GRADIENTS HEAT TRANSFER HEAT TRANSMISSION ICE MATHEMATICAL MODELS MOISTURE PROTECTIVE CLOTHING Protective Equipment TEMPERATURE GRADIENTS TEXTILES THERMAL CONDUCTIVITY THERMAL DIFFUSION THERMAL INSULATION VAPOR PRESSURE VOLUME WATER WATER VAPOR
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Zusammenfassung:	The theoretical effect of several variables on the total thermal conductivity of a fibrous system was determined using derived mathematical relationships. The variables examined included percentage fibre content, fibre arrangement, environmental temperature, water, ice and water vapor diffusion. It was found that the presence of water or ice greatly increases thermal conductivity, and that at practical fibre contents, minimal thermal conductivity is attained when the fibres are lying in series to the direction of heat flow. Abstract in French. See also Part 1, ADA003837.