ISSN Online: 2377-424X
International Heat Transfer Conference 12
Radiative and conductive heat transfer through thermal insulations with foil barriers
要約
Role of thermal radiation in heat transfer across the lightweight, fibrous, high-temperature thermal insulation
was studied experimentally in the paper. The front surface of the insulation was irradiated while the back surface
was air-cooled. Influence of intensity of irradiation and presence of aluminium foils, placed between separate
layers of the insulation on temperature distribution in the insulation were investigated. For high intensity of
irradiation temperature distribution in the insulation was highly non-linear. Significant influence of aluminium
foil barriers was found especially in this part of the insulation, which was close to the back surface of the
insulation. The experimental data for insulation with inserted foils were compared with results of a theoretical
analysis. Good correspondence of the results was found.