Share

EFFECTS OF ENHANCED SURFACES AND SURFACE ORIENTATION ON NUCLEATE AND FILM BOILING HEAT TRANSFER IN R11.

Author(s) : JUNG D. S., VENART J. E. S., SOUSA A. C. M.

Type of article: Article

Summary

A STUDY OF POOL BOILING HEAT TRANSFER IN R11 IS REPORTED AS A FUNCTION OF SURFACE CHARACTERIZATION AND ORIENTATION. TWO PREPARED METAL COATED SURFACES AND A FLAT COPPER SURFACE WERE SUBJECTED TO HEAT FLUXES UP TO 180 KILOWATT/M2 WITH SURFACE ORIENTATIONS VARYING FROM HORIZONTALLY FACING UPWARD, TO VERTICAL, TO HORIZONTALLY FACINGDOWNWARD. THE RESULTS DISPLAY CONSIDERABLE BOILING HYSTERESIS AND ENHANCED SURFACES SHOW 2-3 TIMES BETTER HEAT TRANSFER THAN A PLAIN SURFACE. IN FILM BOILING, ENHANCED SURFACES ALSO REVEAL BETTER HEAT TRANSFER CHARACTERISTICS AND THE ROLE OF SURFACE ORIENTATION ON THE MOTION AND STABILITY OF THE VAPOUR FILM IS CLARIFIED.

Details

  • Original title: EFFECTS OF ENHANCED SURFACES AND SURFACE ORIENTATION ON NUCLEATE AND FILM BOILING HEAT TRANSFER IN R11.
  • Record ID : 1988-1785
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 30 - n. 12
  • Publication date: 1987

Links


See other articles in this issue (7)
See the source

Indexing