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Development of high efficiency heat storage equipment to use the solar energy and prediction of the equipment's charge characteristics.

Research Project

Project/Area Number 07650901
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 化学工学一般
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

MIYATAKE Osame  Kyushu Univ.Dept.of Chem.Eng., Professor, 工学部, 教授 (70038579)

Co-Investigator(Kenkyū-buntansha) OMORI Hiromi  Kyushu Univ.Dept.of Chem.Eng., Technical Official, 工学部, 教務員 (10260712)
NODA Hidehiko  Kyushu Univ.Dept.of Chem.Eng., Research Associate, 工学部, 助手 (00112409)
FUKAI Jun  Kyushu Univ.Dept.of Chem.Eng., Associate Professor, 工学部, 助教授 (20189905)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsSolar energy / Latent heat storage / Direct contact heat transfer / Numerical analysis
Research Abstract

A latent heat storage column was developed in order to use the solar energy effectively. We adopt form-stable cylindrical polyethylene particles as the phase change material and ethylene glycol as heat transfer fluid. The form-stable polyethylene can retain their shapes when heated above the melting point and thus enables heat transfer by direct contact with heat transfer fluid.
The experimental and numerical analyzes were carried out to investigate the discharge characteristics of the latent heat storage column. Firstly, particle-to-fluid heat transfer coefficient in a latent heat storage column was evaluated experimentally using the extended Schumann's theory, and correlated with the dimensionless groups associated with fluid dynamics, configuration of particles and so on. The resulting heat transfer coefficient was found to be definitely lower than those predicted from previously published work. Secondly, a theoretical model representing fluid dynamics and heat transfer in the latent heat storage column was developed. By using the model, the transient temperature distribution in the column and the transient response of the outlet temperature of heat transfer fluid were numerically calculated and compared with experiments. The numerical results were found to be in good agreement with the experimental results.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 宮武修: "融解・凝固履歴を有する粒状架橋樹脂を充填した固定層内における熱伝達" 化学工学論文集. 22. 662-668 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Osamu Miyatake: "Transient Behavior of a Hybrid System of Latent Heat Storage and Spray Flash Evaporation" Proceedings of 5th Internal Symposium on Thermal Engineering. 160-165 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 宮武修: "粒状架橋樹脂を充填した潜熱蓄熱槽の放熱特性" 化学工学論文集. 22. 735-741 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 宮武修: "形状安定化粒状樹脂による潜熱蓄熱" 化学工学論文集. 61. 48-49 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] O.Miyatake et al.: "Heat Transfer Fixed Beds Packed with Cross-Linked Plastic Particles Subjected to Melt-Freeze Cycles" Kagaku Kogaku Ronbunshu. 22,3. 662-668 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] O.Miyatake et al.: "Transient Behavior of a Hybrid System of Latent Heat Storage and Spray Flash Evaporation" Proceedings of 5th Internal Symposium on Thermal Engineering and Science for Cold Regions, Ottawa, Canada. 160-165 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] O.Miyatake et al.: "Discharge Characteristics of Latent Heat Storage Columns Packed with Cross-Linked Plastic Particles" Kagaku Kogaku Ronbunshu. 22,4. 735-741 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] O.Miyatake et al.: "Latent Heat Storage by using Form-Stable Plastic particles" Kagaku Kogaku. 61,1. 48-49 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 宮武 修: "融解・凝固履歴を有する粒状架橋樹脂を充填した固定層内における熱伝達" 化学工学論文集. 22. 662-668 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Osamu Miyatake: "Transient Behavior of a Hybrid System of Latent Heat Storage and Spray Flash Evaporation" Proceedings of 5th Internal Symposium on Thermal Engineering. 160-165 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 宮武 修: "粒状架橋樹脂を充填した潜熱蓄熱槽の放熱特性" 化学工学論文集. 22. 735-741 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 宮武 修: "形状安定化粒状樹脂による潜熱蓄熱" 化学工学論文集. 61. 48-49 (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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