Flow boiling enhancement of R22 and a non-azeotropic mixture of R143a and R124 using perforated foils.

Summary

The paper reports an investigation of the flow-boiling heat transfer from the inside of a smooth tube and a novel surface designed to improve nucleate boiling heat transfer. This surface consists of a perforated brass foil inserted into the smooth tube. Two fluids were investigated: pure R22 and a non-azeotropic mixture of 75% R143a and 25% R124 (by mass). Results are given.

Details

  • Original title: Flow boiling enhancement of R22 and a non-azeotropic mixture of R143a and R124 using perforated foils.
  • Record ID : 1993-2551
  • Languages: English
  • Source: ASHRAE Transactions 1992. Part 2.
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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