Thermophysical basis of the engineering calculation of the package thickness of the sleeping bag
Abstract
Thermophysical basis of the engineering calculation of the package thickness of the sleeping bag
Incoming article date: 22.01.2018In this paper, we propose a technique for calculation of the thickness. This technique is allowed to determine the thickness of a sleeping bag based on data on the equivalent coefficient of thermal conductivity of a sleeping bag package and data of heat production of person during the sleep. The values and trends in the variation of the relative discrepancy between the calculated and experimental thickness of the sleeping bags as a function of temperature are explained by the possible differences in the data on the thermal conductivity of the down, and by the necessity to introduce thermal insulation coefficients for individual parts of the body.
Keywords: Key words: sleeping bag thickness, down, thermal conductivity, thermal insulation