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2001 Fiscal Year Final Research Report Summary

RESEARCH ON STORAGE OF COLD USING CLATHRATE HYDRATE COMPOUND

Research Project

Project/Area Number 12450092
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionNIHON UNIVERSITY

Principal Investigator

TANASAWA Ichiro  NIHON UNIVERSITY, COLLEGE OF ENGINEERING, PROFESSOR, 工学部, 教授 (30013105)

Project Period (FY) 2000 – 2001
KeywordsENRGY STORAGE / COLD STORAGE / ICE STORAGE / PHASE CHNGE MATERIAL / CLATHRATE HYDRATE / EFFFECTIVE USE OF THERMAL ENERGY / AIR-CONDITIONING / LOAD LEVELLING
Research Abstract

THE OBJECTIVE OF THIS RESEARCH IS TO IMPROVE THE ENERGY EFFICIENCY OF THE COLD-STORAGE ATTAINED CURRENTLY BY ICE-STORAGE SYSTEMS. THE IDEA IS TO USE A CLATHRATE HYDRATE COMPOUND THAT CHANGES ITS PHASE FROM LIQUID TO SOLID AT A TEMPERATURE HIGHER THAN 0 DEGREE. THE SUBSTANCE SELECTED IN THIS RESEARCH IS TETRA-N-BUTYLAMMONIUM BROMIDE (HEREAFTER "TBAB" ). WHEN THE AQUEOUS SOLUTION OF TBAB WITH A MASS CONCENTRATION BETWEEN 0〜40 % IS COOLED, CRYSTALS OF CLATHRATE HYDRATE ARE FORMED AT A TEMPERATURE BETWEEN 0〜12 DEGREE. THE DEPENDENCE OF THE PHASE-CHANGE TEMPERATURE AND THE LATENT HEAT OF PHASE CHANGE UPON THE MASS CONCENTRATION WERE OBTAINE USING A DIFFERENTIAL SCANNING CALORIMETER. AT THE SAME TIME, THE FRACTIONS OF SOLID AND LIQUID PHASES AFTER THE HYDRATE FORMATION AND THE REFRACTIVE INDICES WERE MEASURED. IN ADDITION, MORPHOLOGY OF THE HYDRATE CRYSTALS WERE OBSERVED THROUGH A HIGH-MAGNIFICATION MICROSCOPE, REVEALING THAT THE TYPICAL SHAPE OF THE CRYSTALS IS CYLINDRICAL.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] I.Tanasawa: "Low-Temperature Thermal Storage Using Clathrate Hydrate Slurries of Tetra-n-butylammonium Bromide : Thermophysical Properties and Morphology of Clathrate Hydrate Crystals"Proc. 12th Int Heat Transfer Conference. 549-554 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Tanasawa: "Clathrate Hydrate Slurry of Tetra-n-butylammonium Bromide As a Cold-Storage Material"Proc. 4th Int. Symposium on Gas Hydrate. 963-967 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Tanasawa: "Storage and Transport of Cold Using Clathrate Hydrate Slurry : Thermophysical Characteristics of Aqueous Solution of TBAB"Proc. 36th Intersociety Energy Conversion Engineering Conference. 2. 695-700 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I. TANASAWA: "LOW-TEMPERATURE THERMAL STORAGE USING CLATHRATE HYDRATE SLURRIES OF TETRA-N-BUTYLAMMONIUM BROMIDE: THERMOPHYSICAL PROPERTIES AND MORPHOLOGY OF CLATHRATE HYDRATE CRYSTALS"PROC. TWELFTH, INTERNATIONAL HEAT TRANSFER CONFERENCE. 549-554 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. TANASAWA: "CLATHRATE HYDRATE SLURRY OF TETRA-N-BUTYLAMMONIUM BROMIDE AS A COLD-STORAGE MATERIAL"PROC. FOURTH INTERNATIONAL CONFERENCE OF GAS HYDRATE. 963-967 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. TANASAWA: "STORAGE AND TRANSPORT OF COLD USING CLATHRATE HYDRATE SLURRY : FUNDAMENTAL THERMOPHYSICAL CHARACTERISTICS OF AQUEOUS SOLUTION OF TBAB"PROC. THIRTY-SIXTH INTER-SOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE. Vol. 2. 695-700 (2001)

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

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Published: 2003-09-17  

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