Development of guarded hot plate apparatus utilizing Peltier module for precise thermal conductivity measurement of insulation materials

Tatsuya Kobari, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this paper, a guarded hot plate (GHP) apparatus utilizing a Peltier module is proposed and developed to precisely measure the thermal conductivity of insulation material. The Peltier module is used to detect a temperature difference with high sensitivity and to precisely measure heat flux. To develop the GHP apparatus, a two-dimensional axisymmetric heat conduction analysis and calibration experiments of thermistors and Peltier module were conducted. In addition, to assess the reliability of the developed apparatus, thermal conductivity measurements for a high-density glass wool and vacuum insulation panel (VIP) were conducted. Based on the results, the expanded uncertainties of the measurements were estimated. Therefore, the apparatus was found to be reliable for conducting precise thermal conductivity measurements not only for conventional insulation materials but also for a VIP.

Original languageEnglish
Pages (from-to)1157-1166
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume91
DOIs
Publication statusPublished - 2015 Dec 5

Keywords

  • Guarded hot plate (GHP) method
  • Insulation material
  • Measurement
  • Peltier module
  • Thermal conductivity
  • Vacuum insulation panel (VIP)

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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