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

1995 Fiscal Year Final Research Report Summary

A Study on the Long Term Heat Storage for Heating and Cooling in consideration of the Thermal Energy Cycle.

Research Project

Project/Area Number 05452258
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Architectural environment/equipment
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

OCHIFUJI Kiyoshi  Hokkaido Univ. Fac. of Eng., Pro., 工学部, 教授 (50001152)

Co-Investigator(Kenkyū-buntansha) SASAKI Hiroaki  Hokkaigakuen Univ. Fac. of Eng., Pro., 工学部, 教授 (60128816)
MOCHIDA Tohru  Hokkaido Univ. Fac. of Eng., Pro., 工学部, 教授 (40002050)
YOKOYAMA Shintaro  Hokkaido Univ. Fac. of Eng., Asso. Pro., 工学部, 助教授 (90002279)
NAGANO Katsunori  Hokkaido Univ. Fac. of Eng., Asso. Pro., 工学部, 助教授 (80208032)
Project Period (FY) 1993 – 1995
KeywordsSoil heat storage / Long term heat storage / Thermal energy cycle / Ground source heat pump / Natural cooling
Research Abstract

The effect on the long term heat storage for heating and cooling in consideration of the thermal energy cycle between heating and cooling has been evaluated from the experimental and analytical points of view.
Two kinds of experiments for ground source heat pumps (G.H.P.) with burried vertical pipes and horizontal pipes have been conducted. It is found that the ground source heat pumps (G.H.P.) are effective to energy conservation and long term heat storage for domestic heating.
As for vertical type G.H.P., the double U type tubes is beneficial and have large amount of heat storage and extraction rates through the soil. The cold thermal energy stored in the soil during winter by G.H.P.can be used as a heat source to cool rooms efficiently in summer.
As for G.H.P.with horizontal tubes, it has good efficiency of heat extracting rate compared with vertical tubes. The theoretical analysis is proposed to solve the interfering heat transfer with the vertical multi-tube systems using convolution law of line source theory. We can get the reasonable heat storage rate and energy saving of any kinds of configuration.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] 長野克則: "土壌熱源ヒートポンプシステムに関する研究 第3報 水平埋設管による土壌採熱実験" 空気調和・衛生工学会論文集. 58. 1-11 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 落藤澄: "線源理論を用いた垂直埋設管の平均表面温度の推定" 空気調和・衛生工学会論文集. 59. 143-151 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長野克則: "土壌熱源ヒートポンプシステムに関する研究 第4報 数値解析による水平型埋設管の設計条件、および熱源としての長期的利用可能性の検討" 空気調和・衛生工学会論文集. 60. 39-49 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長野克則: "垂直埋設管を用いた季節間土壌蓄熱に関する研究 第3報 夏期冷房実験および管壁温度・土壌温度の年間変動" 空気調和・衛生工学会学術講演会講演論文集. 95. 973-976 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長野克則: "垂直埋設管を用いた季節間土壌蓄熱に関する研究 第4報 鋼管井戸型を対象とした一年目実験結果の解析" 空気調和・衛生工学会学術講演会講演論文集. 95. 977-980 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nagano K.et al.: "A study on the Ground Coupled Heat Pump System Part. 3 Field Experiments on the Ground Heat Extraction Utilizing Horrizontal Earth Coil Heat Exchangers" Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan. No. 58. 1-11 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ochifuji K.et al.: "An Estimate of the Surface Temperature at a Vertical Ground Pipe by Line Source Theory" Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan. No. 59. 143-151 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nagano K.et al.: "A Study on the Ground Coupled Heat Pump System Part. 4 Examinations of Factors of Design about Horizontal Earth Coil Heat Exchangers and Possibility of the Shallow Earth as a Heat Source for Heat Pump by Numerical Analysis" Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan. No. 60. 39-49 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nagano K.et al.: "Studies on Seasonal Thermal Storage by using Vertical Ground Heat Exchangers Part. 3 A Cooling Experiment in Summer and Annual Temperature Variations of Pipes and Soil" Proceedings of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan. No. 95. 977-980 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nagano K.et al.: "Studies on Seasonal Thermal Storage by using Vertical Ground Heat Exchangers Part. 4 Computational Analysis on the First Annual Experiment of a Steel Well" Proceedings of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan. No. 95. 973-976 (1995)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1997-03-04  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi