Towards the dynamics of the temperature field gradient in a layer of an inorganic material under radiation heating according to the data of experiments and numerical modeling

Autor: O. N. Mazurenko, V. R. Sobol, P. N. Goman
Rok vydání: 2012
Předmět:
Zdroj: Journal of Engineering Physics and Thermophysics. 85:691-699
ISSN: 1573-871X
1062-0125
DOI: 10.1007/s10891-012-0703-0
Popis: We have investigated the process of temperature field formation in a layer of a weakly conducting medium with the example of wood and green moss under irradiation of one side with an energy flux and contact heat removal through the opposite back surface of the material onto an asbestos-cement support. The experimental results were compared with the data calculated on the basis of the relations of nonstationary heat transfer in the approximations of closeness and openness of the system. The conditions for heat removal suppression have been concretized and the role of the energy exchange under the prolonged action of radiant energy for estimating the thermal stability parameters of related materials has been elucidated. The obtained data can be used to control radiant fluxes in treating wood, for effective heating of living and industrial premises, improving the methods for opposing high energy fluxes, and preventing the propagation of fire in inhabited localities and in park and forest zones.
Databáze: OpenAIRE
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