Transient Hot Wire Method to Measure the Thermal Conductivity of Solid Materials

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概要

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• A hot wire should be put in the interfacial space between a couple of solid materials. The clearance at the interface becomes the third phase which is not considered in the theory of hot wire method, and would cause some errors in the measurement of thermal conductivity. This paper gives solutions to a heat conduction problem of solids with a thin interfacial clearance, with the aid of heat source theory, and with the aid of numerical calculation. It is found and experimentally proved that the temperature increase rate develops slowly on account of the existence of the clearance but it reaches finally the rate which indicates the right thermal conductivity of solid material. Some means to make the temperature development fast are discussed.

• 一般社団法人日本機械学会の論文

著者

• TAKE-UCHI Masaaki

  Tokai University

• Suzuki Manabu

  Nihon Hatsujo Co. Ltd.

関連論文

• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : Part III, Distribution of Local Heat Transfer Coefficients
• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : Part II. Heat Transfer on the Stagnation Point
• Transient Hot Wire Method to Measure the Thermal Conductivity of Solid Materials

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