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Measurements of Thermal Properties of Gaskets for the Design of Bolted Flange Joints Under Thermal Conduction Conditions

[+] Author Affiliations
Takahiro Ohmura, Kanji Hanashima, Junichi Nyumura

NICHIAS Corporation, Hamamatsu, Japan

Toshiyuki Sawa

Hiroshima University, Higashi-hiroshima, Hiroshima, Japan

Paper No. PVP2006-ICPVT-11-93215, pp. 183-191; 9 pages
  • ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
  • Volume 2: Computer Technology
  • Vancouver, BC, Canada, July 23–27, 2006
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4753-5 | eISBN: 0-7918-3782-3
  • Copyright © 2006 by ASME


In this study, the thermal properties of the gaskets, which were used for designing the bolted flange joints, such as effective thermal conductivity, specific heat, linear thermal expansion coefficient and so on were measured. Especially, the effective thermal conductivities were measured by using the heat flow method. The relationship between the gasket structure and the thickness was shown by using an equivalent thermal resistance, and an empirical equation of effective thermal conductivity, which was related to the bulk density and absolute temperature, was proposed by deriving the heat conduction in solid, radiation and gas. Also, in the measurement of the linear thermal expansion coefficients of the gaskets, the measured values were shown to change substantially below 150 °C, and to depend on the heating rate and the load applied on the gasket sample.

Copyright © 2006 by ASME



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