Study of the Surface Temperature Distribution on Spot Heated Thermal Insulating Foams |
| J. Mamczur, A. Wasilewski, T. Więcek
Department of Applied Optics, Rzeszów University of Technology, al. Powstanców Warszawy 12, 35-959 Rzeszów, Poland |
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| An infrared laser beam has been used to heat a round plate of thermal insulating foam with small pores. The temperature distribution on the opposite surface of the foam has been measured with a thermal imaging camera, as a function of time. The constant laser heating has been realized centrally on the surface. The temperature distribution measurement was then continued during the self-cooling of the sample. We present a method for evaluating thermal conductivity of the insulating foam that is based on two elements: the finite difference method and the least squares approximation. |
DOI:10.12693/APhysPolA.135.1259 PACS numbers: 44.05.+e, 44.10.+i, 02.70.Dh, 02.60.Ed, 07.05.Tp |