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HEAT REMOVAL CHARACTERISTICS OF A COMBINED SYSTEM OF CONCENTRIC-TUBE THERMOSYPHON AND HEAT PUMP.

Author(s) : FUKUSAKO S., SEKI N., YAMADA M.

Type of article: Article

Summary

THE CONCENTRIC-TUBE THERMOSYPHON, WHICH HAS A STEEL OUTER TUBE OF 200 MM IN DIAMETERAND 20 M IN LENGTH, AND A VINYL-CHLORIDE INNER TUBE OF 100 MM IN DIAMETER, WAS VERTICALLY EMBEDDED IN THE GROUND. R11 WAS UTILIZED AS A WORKING FLUID. THE EFFECTS OF THE TUBE-LENGTH AND TUBE-DIAMETER OF THE THERMOSYPHON, THE COOLING TEMPERATURE, AND THE TERRESTRIAL TEMPERATURE ON THE HEAT-REMOVAL RATE WERE EXTENSIVELY DETERMINED. IT WAS FOUND THAT INCREASING THE TUBE-DIAMETER WAS MORE EFFECTIVE FOR HEAT-REMOVAL RATE THAN INCREASING THE TUBE-LENGTH AND THAT THE DIFFERENCEIN TERRESTRIAL TEMPERATURES DID NOT HAVE SO GREAT AN INFLUENCE ON THE HEAT-REMOVAL RATE AT A QUASI-STEADY STATE.

Details

  • Original title: HEAT REMOVAL CHARACTERISTICS OF A COMBINED SYSTEM OF CONCENTRIC-TUBE THERMOSYPHON AND HEAT PUMP.
  • Record ID : 1988-0771
  • Languages: English
  • Source: JSME int. J. - vol. 30 - n. 264
  • Publication date: 1987/06

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