Share

HEAT TRANSFER COEFFICIENTS FOR MELTING ABOUT A VERTICAL CYLINDER WITH OR WITHOUT SUBCOOLING AND FOR OPEN OR CLOSED CONTAINMENT.

Author(s) : KEMINK R. G., SPARROW E. M.

Type of article: Article

Summary

EXPERIMENTS WERE UNDERTAKEN TO MEASURE HEAT TRANSFER COEFFICIENTS FOR MELTING ABOUT A HEATED VERTICAL CYLINDER EMBEDDED IN A SOLID PHASE-CHANGE MEDIUM WHOSE TEMPERATURE WAS EITHER AT THE MELTING POINT OR WAS SUBCOOLED BELOW THE MELTING VALUE. ALL THE EXPERIMENTS WERE PERFORMED USING 99% PURE N-EICOSANE PARAFFIN MELTING TEMPERATURE = 309.4 K (36.4 DEGC) AND ENCOMPASSED BOTH TRANSIENT AND STEADY-STATE PERIODS. SUBCOOLING TENDS TO DELAY THE ONSET OF NATURAL CONVECTION DOMINANCE OF THE HEAT TRANSFER PROCESS. THE NATURAL CONVECTION HEAT TRANSFER COEFFICIENTS IN THE PRESENCE OF SUBCOOLING ARE ABOUT 10-15% LOWER THAN THOSE FOR THE NON-SUBCOOLED CASE.

Details

  • Original title: HEAT TRANSFER COEFFICIENTS FOR MELTING ABOUT A VERTICAL CYLINDER WITH OR WITHOUT SUBCOOLING AND FOR OPEN OR CLOSED CONTAINMENT.
  • Record ID : 1982-1877
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 24 - n. 10
  • Publication date: 1981/10

Links


See other articles in this issue (3)
See the source

Indexing