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放射熱交換と放射測温技術を用いた熱物性計測技術に関する研究
松本, 毅
35769
Matsumoto, Tsuyoshi
筑波大学
University of Tsukuba
博士(工学)
Doctor of Philosophy in Engineering
Thermophysical properties (the thermal conductivity, specific heat capacity, emissivity, etc.) are a group of properties which are closely related to transfer and accumulation of heat. Recently, numerical simulation techniques have been rapidly developed in designing various devices where thermal problems are critical. In response to the development in simulation techniques, thermophysical properties, including those under special condition (high temperatures, small/thin samples, etc.), have become more important as basic parameters for the simulation.
On the other hand, the most of the traditional methods are referred as “adiabatic method”, in which a sample is insulated carefully with insulators and guard heaters. Hence, measurement apparatuses in these methods were usually large and complicated, and the time needed for a measurement consequently became longer. In addition, ideal thermal insulation was difficult at higher temperatures due to enhanced radiation heat loss which increases in proportion to the absolute temperature to the fourth power.
In this study, a pair of techniques, i.e., radiative heat exchange and ...
2000
doctoral thesis
2000
2000-09-30
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乙第1656号
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jpn
open access