Share

Effect of lubricant on spray evaporation heat transfer performance of R134a and R22 in tube bundles.

Author(s) : MOEYKENS S. A., PATE M. B.

Summary

Tests were conducted with refrigerant R134a and triangular-pitch tube bundles made from enhanced-condensation, enhanced-boiling, low-finned and plain-surface tubes. A 340-SUS POE oil was used for the R134a testing. Spray evaporation heat transfer tests were performed at oil concentrations of 1 and 2.5% by mass fraction of the total refrigerant/lubricant mixture. Two refrigerant supply rates were used for the R134a testing so that the effects of film-feed supply rate could be interpreted from the data. Limited testing was also conducted on R22 with an enhanced boiling surface and a plain-surface bundle. A 300 SUS alkyl-benzene oil was used for the R22 refrigerant/lubricant mixture tests.

Details

  • Original title: Effect of lubricant on spray evaporation heat transfer performance of R134a and R22 in tube bundles.
  • Record ID : 1997-2023
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1996/02/16
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (38)
See the conference proceedings

Indexing