Heat transfer at the solid-liquid interface during melting from a horizontal cylinder

Abstract

Heat transfer during melting from a horizontal cylindrical heat source with a uniform surface heat flux (heated electrically) and a uniform surface temperature (heated by circulating a fluid through a multipass heat exchanger) embedded in n -paraffins n-heptadecane and n-octadecane have been studied experimentally. The instantaneous shape of the melt volume was recorded photographically and local heat transfer coefficients at the solid-liquid interface, determined from these data, are presented. For quasi-steady melting, the local and average heat transfer results are correlated in dimensionless form. Using the correlation thus determined, the solid-liquid interface position was calculated and found to be in good agreement with experimental data.