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Mathematical Model of Heat and Moisture Transfer for Predicting Durability of Building Element

Research Project

Project/Area Number 13650661
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Architectural environment/equipment
Research InstitutionOsaka Sangyo University

Principal Investigator

MATSUMOTO Mamoru  Prof. Osaka Sangyo Univ., 工学部, 教授 (10031064)

Co-Investigator(Kenkyū-buntansha) SATO Minami  Lecturer, Osaka Institute of Technology, 工学部, 講師 (90249780)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsMoisture Variation and Distribution / Freezing / Thawing Process / Transient Heat and Moisture Transfer / Deformation on Moisture Variation / Porous Building Materials / Effect of Moisture on Durability / 含水(氷)率変動 / 凍結・融解 / 水分膨張・収縮 / 凍結融解 / 含水、含氷率分布 / 非定常解析法 / 含湿変形 / 木材 / 核酸異方性 / 変形年変動
Research Abstract

For the purpose of prediction of moisture variation in building elements, mathematical model of heat and moisture transfer are discussed in the region above 0 degree centigrade. In the equations, waterprecipitation and air pressure are considered in the boundary conditions. Addition to results, governing equations of heat and moisture transfer under freezing are discussed and derived. In those equation, existence of liquid water even below 0 degree centigrade is assumed. Equations obtained are valid not only in freezing/thawing region but in non-freezing region. Using these equations, experimental results are analyzed of test specimen of ALC under freezing/thawing conditions. Calculated results of solid water (ice) contents and temperature distributions are reasonably agree with experimental results. In next stage, we will try to introduce chemical reactions term in the equations.
On the other hand, we tried to analyze deformation of building elements due to moisture content variation and distribution. In hygroscopic region, expansion/shrinkage of wooden wall and studs are analyzed numerically under transient natural conditions at Osaka, Japan, applying governing equation mentioned above. We obtain order of deformation of each elements of wooden wall. In the analysis, non-isotropic properties are considered. Furthermore, experiments of deformation of stud under compressed conditions are perform. Compressed effects are not shown clearly.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] M.Matsumoto, S.Hokoi, M.Hatano: "Model for simulation of freezing and thawing processes in building materials"Building and Environment. 36. 733-742 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 畑野, 鉾井, 松本 衛: "ALC壁体における凍結・融解過程に関する研究"日本建築学会計画系論文集. 545. 23-28 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 鉾井, 松本 衛, 他3名: "建築壁体における凍結・融解過程に関する研究"日本建築学会環境工学委員会 熱シンポジウム 第31回. 31. 9-16 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 佐藤 真奈美, 西畑 雄介: "木材の湿気変動と膨張/収縮特性"日本建築学会環境工学委員会第31回熱シンポジューム. 31. 33-40 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 佐藤 真奈美: "異なった樹種で出来た木製スタッドの熱・湿気挙動と膨張/収縮特性"日本建築学会大会学術講演梗概集. D-II283-D-II284 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 宮本, 松本, 佐藤: "木製構造材の変形量の検討 -液水移動の影響について-"日本建築学会大会学術講演梗概集. (発表予定)(受理済). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M. Matsumoto, S. Hokoi, M. Hatano: "Model for simulation of freezing and thawing Process in building materials"Building and Environment. 36. 733-742 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M. Hatano, S. Hokoi, M. Matsumoto: "An study on freezing and thawing process in ALC wall"J. Archit. Plann. Environ. Eng. AIJ. 545. 23-28 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Hokoi, M. Hatano, C. Iba, M. Matsumoto: "An study on freezing-thawing process in Walls"Proc. Symposium on Thermal Problem, AIJ Committee of thermal environmental Eng.. 31. 9-16 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M. Sato, Y. Nishihata: "Evaluation of hygrothermal behavior and Expansion/shrinkage on a wooden stud"Proc. Symposium on Thermal Problem, AIJ Committee of thermal environmental Eng.. 31. 33-40 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M. Sato, Y. Nishihata et al: "An analysis of moisture behavior in super insulated building wall (1), (2) and (3)"Summary of Technical Papers of Annual Meeting AIJ 2001. D II. 321-326 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Manami Sato: "An analysis of hygrothermal behavior and Expansion/Shrinkage on wooden stud"Summary of Technical Papers of Annual Meeting AIJ 2002. D II. 283-284 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M. Miyamoto, M. Matsumoto, M. Sato: "Estimation of deformation of wooden stud"Summary of Technical Papers of Annual Meeting AIJ 2003. (To be published). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Matsumoto, S.Hokoi, M.Hatano: "Model for simulation of freezing and thawing processes in building materials"Building and Environment. 36. 733-742 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 畑野, 鉾井, 松本 衛: "ALC壁体における凍結・融解過程に関する研究"日本建築学会計画系論文集. 545. 23-28 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 鉾井, 松本 衛, 他3名: "建築壁体における凍結・融解過程に関する研究"日本建築学会環境工学委員会 熱シンポジウム 第31回. 31. 9-16 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 佐藤真奈美, 西畑, 他3名: "高断熱・高気密壁体の熱・湿気挙動解析(1)(2)および(3)"日本建築学会大会学術講演梗概集. 321-326 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 佐藤 真奈美: "異なった樹種で出来た木製スタッドの熱・湿気挙動と膨張/収縮特性"日本建築学会大会学術講演梗概集. D-II283-D-II284 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 佐藤 真奈美, 西畑 雄介: "木材の湿気変動と膨張/収縮特性"日本建築学会環境工学委員会第31回熱シンポジューム. 31. 33-40 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Matsumoto, S.Hokoi, M.Hatano: "Model for simulation of freezing and thawing processes in building materials"Building and Environment. 36. 733-742 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 畑野, 鉾井, 松本: "ALC壁体における凍結・融解過程に関する研究"日本建築学会計画系論文集. 545. 23-28 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鉾井, 松本 他3名: "建築壁体における凍結・融解過程に関する研究"日本建築学会環境工学委員会 熱シンポジウム第31回. 31. 9-16 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 西畑, 佐藤 他2名: "高断熱・高気密壁体の熱・湿気挙動解析(1)"日本建築学会大会学術講演梗概集. 321-322 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大石, 佐藤 他1名: "高断熱・高気密壁体の熱・湿気挙動解析(2)"日本建築学会大会学術講演梗概集. 323-324 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 佐藤 他2名: "高断熱・高気密壁体の熱・湿気挙動の解析(3)"日本建築学会大会学術講演梗概集. 325-326 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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