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Study on the ice formation and its removal phenomena on cooled surface

Research Project

Project/Area Number 12650197
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionShinshu University

Principal Investigator

HIRATA Tetsuo  Shinshu University, Faculty of Engineering, Professor, 工学部, 教授 (40126701)

Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2002: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2001: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2000: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsIce storage / Ice formation / Ice removal / Liquid ice / Aqueous solution / Pipe flow / Vertical tube / Cooled plate thickness / エチレングリコール水溶液 / 鉛直平板 / 冷却面材質 / 円管内流れ / 傾斜平板 / エタノール水溶液
Research Abstract

In the previous study, the investigator examined an ice formation phenomenon of aqueous solution on a cooled plate, whose thermal conductivity was comparatively small. It was reported that the ice formed on a cooled plate could be removed from the plate surface due to buoyancy force acting on the ice. The present study is a basic research to apply the ice removal phenomena for practical use.
1. Study on ice removal phenomena around vertical cooled tube
An ethylene glycol aqueous solution was frozen with cooling a cooled polyvinyl chloride tube. It was found that the formed ice crystal on the cooled tube could be removed due to buoyancy force even on the vertical tube. It implies the possibility of increase of ice formation rate by installing many vertical tubes on the bottom of an ice storage vessel. It was also found that an appropriate value of the tube length exists for the onset condition of ice removal phenomena.
2. Ice removal phenomena in a cooled pipe with flowing aqueous solution
Ice formation and its removal phenomena in a cooled pipe were examined. It was found that the ice formation rate increases with decreasing flow velocity of aqueous solution. However, for very low velocity, the ice crystal was not removed from the pipe surface and an ice layer was formed over the surface.
3. Effect of cooled plate thickness on the ice removal phenomena
Ice was formed on a horizontal cooled plate with using different thickness of polyvinyl chloride plate. It was found that the thickness of 1.0-1.5mm was preferable for the ice removal phenomena.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] 平田哲夫, 石川正明, 阿久津伸明: "鉛直冷却円筒面における水溶液の凍結と剥離現象"日本冷凍空調学会論文集. 18巻1号. 31-38 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 平田哲夫, 石川正昭, 神原完太: "氷の剥離現象を伴う円管内流動水溶液の凍結"日本冷凍空調学会論文集. 18巻4号. 411-417 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Hirata, M.Ishikawa, K.Yamada: "Crystal ice formation of solution and its removal phenomena on inclined cooled plate"International Journal of Refrigeration. 25巻2号. 190-198 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 平田哲夫, 羽入田譲, 石川正昭: "水平冷却面における水溶液の凍結と剥離現象(冷却板厚さ及び材質の影響)"日本冷凍空調学会論文集. 19巻4号. 349-355 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Hirata, T.Nishi, M.Ishikawa: "Ice formation of aqueous solution and its removal phenomena around vertical cooled cylinder"International Journal of Refrigeration. 26巻2号. 188-195 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Hirata, Y.Matsuzaki, M.Ishikawa: "Ice formation of aqueous solution and its removal phenomena on vertical cooled plate"Heat Transfer. (印刷中). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Hirata, M. Ishikawa, N. Akutsu: "Crystal ice formation and its removal phenomena around vertical cooled cylinder"Transactions of JSRAE. 18-1. 31-38 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Hirata, M. Ishikawa, K. Kanbara: "Ice formation and its removal phenomena of flowing solution in cooled pipe"Transactions of JSRAE. 18-4. 411-417 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Hirata, M. Ishikawa, K. Yamada: "Crystal ice formation of solution and its removal phenomena on inclined cooled plate"Int. J. Refrigeration. 25-2. 190-198 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Hirata, Y. Hanyuuda, M. Ishikawa: "Ice formation of solution and its removal phenomena on horizontal cooled surface"Transactions of JSRAE. 19-4. 349-355 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Hirata, T. Nishi, M. Ishikawa: "Ice formation of aqueous solution and its removal phenomena around vertical cooled cylinder"Int. J. Refrigeration. 26-2. 188-195 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Hirata, Y. Maatsuzaki, M. Ishikawa: "Ice formation of aqueous solution and its removal phenomena on vertical cooled plate"Heat Transfer. in press

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 平田哲夫, 羽入田譲, 石川正昭: "水平冷却面における水溶液の凍結と剥離現象(冷却板厚さ及び材質の影響)"日本冷凍空調学会論文集. 19巻・4号. 349-355 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Hirata, T.Nishi, M.Ishikawa: "Ice formation of aqueous solution and its removal phenomena around vertical cooled cylinder"International Journal of Refrigeration. 26巻・2号. 188-195 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Hirata, Y.Matsuzaki, M.Ishikawa: "Ice formation of aqueous solution and its removal phenomena on vertical cooled plate"Heat Transfer. (印刷中). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 井上忠一, 平田哲夫, 石川正昭: "円管内流動水溶液の凍結と剥離現象に与える測度分布の影響"日本冷凍空調学会学術講演会講演論文集. 113-116 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 平田哲夫, 石川正昭, 神原完太: "氷の剥離現象を伴う円管内流動水溶液の凍結"日本冷凍空調学会論文集. 18巻・4号. 411-417 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Hirata, K.Ishikawa, K.Yamada: "Crystal ice formation of solution and its removal phenomena on inclined cooled plate"International Journal of Refrigeration. 25巻・2号. 190-198 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Hirata, K.Ishikawa, K.Kanbara: "Ice formation of flowing aqueous solution and its removal phenomena in cooled pipe"Proceedings of International Conference "Fundamental Research on Thermal Energy Storage to Preserve Environment". 19-24 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 平田哲夫, 石川正昭, 濱中健一: "円管内流動水溶液の凍結と剥離に関する研究"日本機械学会2001年度次大会講演論文集. V巻・1号. 203-204 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 平田哲夫,石川正昭,阿久津伸明: "鉛直冷却円筒面における水溶液の凍結と剥離現象"日本冷凍空調学会論文集. 18巻・1号(印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Hirata,K.Ishikawa,N.Akutsu: "Crystal ice formation of solution and its removal phenomena around vertical cooled cylinder"Proceedings of the 7^<th> International Symposium on Thermal Engineering and Science for Cold Regions. (発表予定). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 平田哲夫,石川正昭,阿久津伸明,西孝行: "鉛直円筒面における水溶液凍結層の剥離現象"日本機械学会北陸信越支部第38期総会講演会講演論文集. (発表予定). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 平田哲夫,石川正昭,羽入田譲: "水平冷却面における水溶液の凍結と剥離現象(冷却板厚さと表面材質の影響)"日本機械学会北陸信越支部第38期総会講演会講演論文集. (発表予定). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 平田哲夫,石川正昭,乾條晴史: "水平冷却面におけるエタノール水溶液の凍結と剥離現象"第38回日本伝熱シンポジウム講演論文集. (発表予定). (2001)

    • Related Report
      2000 Annual Research Report

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

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