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

Development of artificial permafrost storage and the annual fluctuation

Research Project

Project/Area Number 02806045
Research Category

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

Allocation TypeSingle-year Grants
Research Field Agro-economics
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

TSUCHIYA Fujio  Obihiro Uni. Dep. of Agro-environmental Sci. Assoc. Prof., 畜産学部, 助教授 (30003130)

Co-Investigator(Kenkyū-buntansha) TSUJI Osamu  Obihiro Uni. Dep. of Agro-environmental Sci. Research Assoc., 畜産学部, 助手 (60155364)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsFrozon Ground / Heat pipe / Permafrost / Cold storage / Facility of Storage / Conservation of natural environment / Latent heat transfer / 低温貯蔵庫 / 地盤凍結 / 地温
Research Abstract

We had developed a mo del plant for the artificial permafrost storage at Obihiro University in December, 1987. Since then, the fluctuation of the temperatures and humidity in cold room and the changes of temperatures in frozen ground has been investigated, measuring the soil temperature and the situation of the created frozen ground layer. The qualitative changes of the stored vegetables(mainly, potatoes, Chinese yam, burdock)were investigated and examined. Although this storage system was prove possible to stock the vegetables, a few problems were left. As the cooling effect of heat pipes became too great, the room temperature dropped below the freezing point during the severe winter(from January to May). In order to settle this problem, the fins of the condensative section on 108 pieces of heat pipes was covered with cloth sheets and consequently this operation proved that the cooling effect was reduced. The worldng of heat pipe was stopped automatically owing to the thermal diode ef … More fect since April.
The automatic water pouring system was applied on the room wall and if the room temperature became below the freezing point, this system was operated to prevent the vegetables from killing. And the poured water turned ice sheet in the room and much ice on the floor kept cool in the stocked vegetables. Then room temperature in this year was kept colder to 2.5゚C in the warmest month, August than 4.0゚C in last year.
The most important thing is to keep the freshness of the stored vegetables for the food storage system, we proved the ability for store potatoes Chinese yam, burdock and carrot, and they have well worth commercial. In this year, the new stored matter, flesh flower was stocked in the artificial permafrost storage and it was found that chrysanthemum, lily, carnation and statice were keep fresh during one month. Also roses, tulips and haze grass were found to keep fresh to tree weeks.
Thus, we concluded that this artificial permafrost storage was profitable system to keep the vegetables an flowers fresh during a long period. Less

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] F. Tsuchiya, K. Ryokai and M. Mochizuki: "Application of artificial permafrost using heat pipes for agricultural products" 3rd International Symposium on Cold Region Development, Edmonton, Canada Abstract. No.3. 38 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] F. Tsuchiya, K. Ryokai and M. Mochizuki: "A cold storage of agricultural products surrounded by artificial permafrost using heat pipes" The sixth International Symposium on Ground Freezing, Beijing, China. 6(2). (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] F. Tsuchiya, K. Ryokai and M. Mochizuki: "Application of artificial permafrost using heat pipes for agricultural products" 3rd International Symposium on Cold Region Development, Edmonto Canada, Abstract. 38 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] F. Tsuchiya, K. Ryokai and M. Mochizuki: "A cold storage of agricultural products surrounded by artificial permafrost using heat pipes" The sixth International Symposium on Ground Freezing, Beijing, China. 2. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] F.Tsuchiya,K.Ryokai and M.Mochizuki: "Application of artificial permafrost using heat pipes for agricultural products" 3rd Intenational Symposium on Cold Region Development,Edmonton,Canada Abstract. No.3. 38 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] F.Tsuchiya,K,Ryokai and M.Mochizuki: "A cold storage of agricultural products surrounded by artificial permafrost using heat pipes" The sixth International Symposium on Ground Freezing Beijing,China. 6(2). (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 土谷 富士夫・了戒 公利: "ヒ-トパイプを利用した人工永久凍土による低温貯蔵庫" 農業土木学会誌. 58(9). 881-886 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 南 清司・了戒 公利・土谷 富士夫: "自然冷熱を利用した低温貯蔵庫ーヒ-トパイプの利用ー" 農業施設. 22(11). 31-35 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.Fukuda,F.Tsuchiya,et al.: "Artificial Permafroat Storage System Using Heat Pipes" Fujikura Technical Review. 20. 66-71 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] F.Tsuchiya,K.Ryokai: "Applications of Artificial Permafrost using heat pipes for cold storage of agricultural products" International Symbosium on Cold Region Development. 1991. (1991)

    • Related Report
      1990 Annual Research Report

URL: 

Published: 1990-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi