Heat transfer during melting from an isothermal vertical wall

Ching-Jenq Ho, R. Viskanta

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Abstract

This paper reports basic heat transfer data during melting of n-octadecane from an isothermal vertical wall of a rectangular cavity. The shadowgraph technique was used to measure local heat transfr coefficents at the heat source surface and the solid-liquid interface motion during phase change was recorded photographically. Experimental results clearly showed that, except in the very early stages of melting, the rates of melting and of heat transfer were greatly affected by the buoyancydriven convection in the liquid. Initial subcooling of the solid substanially impeded the phase change process. A numerical simulation of the corresponding twodimensional melting in the presence of natural convection was performed, and the numerical predictions are compared with experimental data.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalJournal of Heat Transfer
Volume106
Issue number1
DOIs
Publication statusPublished - 1984 Jan 1

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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