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Heat transfer characteristics in the U-bend of a microfin tube evaporator using R407C.

Author(s) : CHO K., KIM B. G.

Summary

The parameters were mass flux of 200 and 400 kg/m2.s, heat flux of 6 and 12 kilowatts/m2, and inlet quality of 0.1 and 0.2. The system pressure was 0.65 megapascals. The apparatus consisted of a test section of four straight sections, and three U-bends, preheater, condenser, refrigerant pump, mass flowmeter, and other equipment. The average heat transfer coefficients in the U-bends were higher by 4 to 33% than those in the straight sections.

Details

  • Original title: Heat transfer characteristics in the U-bend of a microfin tube evaporator using R407C.
  • Record ID : 1999-3440
  • Languages: English
  • Source: ASHRAE Transactions. 1998 annual Meeting, Toronto, Ontario + CD-ROM.
  • Publication date: 1998
  • Document available for consultation in the library of the IIR headquarters only.

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