• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Quantitative Estimation of Transient Thermal Sensation under Unsteady Thermal Environments

Research Project

Project/Area Number 12555058
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Thermal engineering
Research InstitutionKyushu University

Principal Investigator

MASUOKA Takashi  Kyushu University, Graduate School of Engineering, Professor, 工学(系)研究科(研究院), 教授 (30039101)

Co-Investigator(Kenkyū-buntansha) KOHRI Itsuhei  Mitsubishi Motors Corporation, トラック・バス技術センター・車両研究部グループ長(構造研究担当), 教授
KAMIMOTO Yasushi  Kyushu University, Graduate School of Engineering, Research Associate, 工学(系)研究科(研究院), 助手 (50336004)
田中 克典  九州大学, 工学研究院, 助手 (40037833)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥9,500,000 (Direct Cost: ¥9,500,000)
Fiscal Year 2001: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2000: ¥7,700,000 (Direct Cost: ¥7,700,000)
KeywordsTransient Thermal Sensation / Unsteady Thermal Environment / Bio-Heat Equation model / Blood Flow Field / 非定常温熱環境下での温冷感申告法 / 非定常温熱環境下での過渡温冷感 / 皮膚表面温度 / 表面熱流束 / 内部血流量 / 環境温度変化速度 / 透過率の温度依存性 / 非定常熱環境 / 人体伝熱モデル / 血流 / PMV
Research Abstract

1. Transient behaviors of thermal sensation under unsteady thermal environments
A new voting method for the evaluation of the transient thermal sensation that is applicable to unsteady thermal environments was proposed and the transient behaviors of thermal sensation were examined by utilizing an experimental test room of 3200x2250 mm in width and of 2700 mm in height placed in Kyushu University. The correlation between the rate of environmental temperature change and the transient thermal sensation was elucidated, where the time delay of the transient thermal sensation under unsteady thermal environments was found.
2. Correlation between thermal sensation under unsteady thermal environments and such physiological parameters as the skin surface temperature, surface heat flux and blood flow rate as well as thermal environmental parameters
Thermal infrared-image viewer and a laser-doppler blood-flow meter were utilized to make measurements of skin-surface temperature and skin blood-flow rate, which were confirmed to have time delay relative to the time change of environmental temperature.
3. Examination of Physiological data on transient thermal sensation by a porous medium equivalent bio-heat equation model
A bio-heat equation model, which considers momentum equation for blood flow field through capillary vessels, was proposed, where blood flow rate was automatically adjusted with assumption of temperature-dependent equivalent permeability for the capillary vessels. The predicted time delay of numerical skin surface temperature was confirmed as of the order of the experimental one. It was concluded that the transient behaviors of thermal sensation can be evaluated fundamentally with the unsteady local skin-surface temperature behaviors, which will be estimated experimentally with infrared thermometer or numerically with computer.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] T.Masuoka, Y.Takatsu: "Turbulence Characteristics in Porous Media"Transport Phenomena in Porous Media (ed. By. I. Pop and B. Ingham), Pergmamon. (未定). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Masuoka, T.Takatsu, T.Inoue: "Chaotic Behaviors and Transition to Turbulence in Porous Media"Microscale Thermophysical Engineering. (未定). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Masuoka, Y.Takatsu, T.Inoue: "Chaotic Behaviors and Transition to Turbulence in Porous Media"Proceedings of the International Conference on Heat Transfer and Transport Phenomena in Microscale, Banff, Canada. 299-303 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 増岡隆士: "多孔質内の熱流動"日本機械学会熱工学講演会後援論文集(岡山),(基調講演). 1-6 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Masuoka and Y. Takatsu: "Turbulence Characteristics in Porous Media"Transport Phenomena in Porous Media (ed.by I.Pop and B.Ingham), Pergmamon. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Masuoka, Y. Takatsu and T. Inoue: "Chaotic Behaviors and Transition to Turbulence in Porous Media"Microscale Thermophysical Engineering. (To be published). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Masuoka, Y. Takatsu and T. Inoue: "Chaotic Behaviors and Transition to Turbulence in Porous Media"Proc. of the International Conference on Heat Transfer and Transport Phenomena in Microscale. 299-303 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Masuoka: "Heat Transfer and Fluid Flow in Porous Media"Proc. of the TED-COF. '01, JSME. 1-6 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Masuoka, Y.takatsu: "Turbulence Characteristics in Porous Media"Transport Phenomena in Porous Media (ed. by I. Pop and B. ingham), Pergamon. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Masuoka, Y.Takatsu, T.Inoue: "Chaotic Behaviors and Transition to Turbulence in Porous Media"Microscale Thermophysical Engineering. (掲載決定)(in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 増岡隆士: "多孔質内の熱流動"日本機械学会熱工学講演会講演論文集(岡山),(基調講演). 1-6 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Masuoka, H.Nakamura, S.Kobayashi, K.Tanaka, T.Oshima: "Optimal Partition for Suppression of Thermal Convection"Thermal Science and Engineering. Vol.9・No.4. 61-62 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 谷川洋文, 増岡隆士: "水平環状多孔質層内自然対流の低レーレー数域熱的振動"日本機械学会論文集(B編). 67巻・653号. 148-153 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 谷川洋文, 増岡隆士, 小松直樹, 井上達哉: "感温スクリーンによる熱対流制御に関する研究"日本機械学会論文集(B編). 67巻・660号. 2068-2072 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Masuoka, Y.Kakimoto, Y.Takatsu: "hermodynamic Aspects on Optimal Frequencies of Respiration"Proc. of the 5^<th> International Joint Symposium between Chungnam National University and Kyushu University. B1-7. 104-107 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Masuoka,Y.Takatsu and T.Inoue: "Chaotic Behaviors and Transition to Turbulence in Porous Media Heat Transfer and Transport Phenomena in Microscale."(Editors : G.P.Celata), begell house, inc., New York, Wallingford (UK),. 299-303 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 増岡隆士,井上智己,高津康幸: "多孔質層内流れの乱流遷移について"日本伝熱シンポジウム講演論文集,. Vol.1,. 951-952 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 増岡隆士,高津康幸,井上智己: "多孔質内流れのカオス・乱流遷移"日本機械学会流体工学部門講演会講演論文集,. 00-14-806,. 1-5 (2000)

    • Related Report
      2000 Annual Research Report

URL: 

Published: 2000-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi