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MEASUREMENT OF THERMOPHYSICAL PROPERTIES OF SOLID BODIES AT LOW TEMPERATURE REGION OF LIQUID HELIUM

Research Project

Project/Area Number 63850047
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field Thermal engineering
Research InstitutionKyushu University

Principal Investigator

ITO Takehiro  Kyushu Univ., Faculty of Eng., Prof., 工学部, 教授 (20037740)

Co-Investigator(Kenkyū-buntansha) YOKOI Yutaka  Toyota Central Res. & Dev. Labs., Researcher, 研究員
FUJIKAKE Kenji  Toyota Central Res. & Dev. Labs., Director, 取締役研究1部長
KUBOTA Hiromi  Kyushu Univ., Faculty of Eng., Res. Associate, 工学部, 助手 (10117103)
TAKATA Yasuyuki  Kyushu Univ., Faculty of Eng., Associate Prof., 工学部, 助教授 (70171444)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥6,600,000 (Direct Cost: ¥6,600,000)
Fiscal Year 1989: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1988: ¥5,000,000 (Direct Cost: ¥5,000,000)
KeywordsThermophysical Property / Transient Heat Conduction / Low Temperature / Rectangular-shaped Pulse Heating / Liquid Helium / Specific Heat / Thermal Conductivity / Thermal Diffusivity / ヘリウム温度域
Research Abstract

One of the information that has been in great demand in thermal design of the cryogenic devices is that of the thermophysical properties such as the specific heat, the thermal conductivity and the thermal diffusivity. Therefore, it is of definite importance to develop a handy method for measuring such properties to construct a large body of database. Thus, a transient method with rectangular-shaped pulse heating has been developed to determine the thermophysical properties of substances used often as structural materials at low temperature region of liquid helium. Those tested were Bakelite (Phenolformaldehyde resin) and Teflon (Polytetra-fluoroetliylene) in the temperature ranges of 4.44-9.15[K] and 4.73-15.62[K], respectively. The further studies for numerical method were made and the present analytical method was verified.
It was recognized in the temperature range tested that the specific heat and the thermal conductivity of them increased with temperature, while the thermal diffusivity decreased with that. Results indicated also that the specific heat of Bakelite varnish and Teflon as well as the thermal conductivity of Teflon reported behaved similarly to our present results. Thus the validity of the present transient method was confirmed. It was found as well that the temperature excursion of solid bodies could be predicted by the numerical method.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 伊藤猛宏,高田保之,久保田裕巳,本並鉄二: "方形波パルス加熱による低温における熱物性値の測定" 日本機械学会論文集. 54. 2556-2559 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Ito, Y.Takata, H.Kubota and T.Honnami: "Measurement of Thermophysical Properties at Low Temperature by Rectangular-Shaped Pulse Heating" Twelfth International Cryogenic Engineering Conference with Exhibition. 12. 409-413 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Ito, Y.Takata, H.Kubota and T.Honnami: "Measurement of Thermophysical Properties at Low Temperature by Rectangular-Shaped Pulse Heating" Transactions of the Japan Society of Mechanical Engineers, 54-505, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Ito, Y.Takata, H.Kubota and T.Honnami: "Measurement of Thermophysical Properties at Low Temperature by Rectangular-Shaped Pulse Heating" Twelfth International Cryogenic Engineering Conf. with Exhibition, 12, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 伊藤猛宏,高田保之,久保田裕巳,本並鉄二: "方形波パルス加熱による低温における熱物性値の測定" 日本機械学会論文集. 54. 2556-2559 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Ito,Y.Takata,H.Kubota and T.Honnami: "Measurement of Thermophysical Properties at Low Tomperature by RectangularーShaped Pulse Heating" Twelfth International Cryogenic Engineering Conference with Exhibition. 12. 409-413 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] 伊藤猛宏,高田保之,久保田裕巳,本並鉄二: 日本機械学会論文集. 54. 2556-2559 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Ito;Y.Takata;H.Kubota;T.Honnami: Twelfth International Cryogenic Engineering Conference with Exhibition. 12. (1988)

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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