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GRAVITY-ASSISTED MELTING IN A SPHERICAL ENCLOSURE: EFFECTS OF NATURAL CONVECTION.

Author(s) : ROY S. K., SENGUPTA S.

Type of article: Article

Summary

A THEORETICAL MODEL OF GRAVITY-ASSISTED MELTING IN A SPHERICAL ENCLOSURE IS DISCUSSED. A SPHERE WITH A PHASE CHANGE MATERIAL INITIALLY IN THE SOLID PHASE AT ITS MELTING TEMPERATURE IS INSTANTANEOUSLY EXPOSED TO A UNIFORM HIGHER TEMPERATURE AT THE WALL. THE EFFECTS OF NATURAL CONVECTION ON THE MELTING PROCESS HAVE BEEN CONSIDERED. SUITABLE SIMPLIFICATIONS HAVE BEEN MADE, IN ORDER TO REDUCE COMPUTATIONAL TIME. THE NON-DIMENSIONAL MELT TIME AND HEAT TRANSFER COEFFICIENT HAVE BEEN OBTAINED AS A FUNCTION OF THE PROPERTY VALUES, OPERATING TEMPERATURES AND PHYSICAL SIZE.

Details

  • Original title: GRAVITY-ASSISTED MELTING IN A SPHERICAL ENCLOSURE: EFFECTS OF NATURAL CONVECTION.
  • Record ID : 1991-0119
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 33 - n. 6
  • Publication date: 1990/06

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