On the Contact Heat Transfer with Melting (Direct Contact Melting Process within an Inclined Rectangular Cross-Section)

抄録

Experimental and analytical investigations were performed on a direct contact melting process of a phase change material (PCM) which was contained in an inclined rectangular space surrounded by a heat transfer surface and plated fins. The solid phase varied in shape, receiving the latent heat of fusion from the surrounding walls at the contacting spots, and moved within the rectangular space, changing the contacting mode. The numerical method to simulate such a direct contact melting process was proposed. Experiments were also conducted to examine the numerical method, using N-octadecane as the PCM. The experimental and analytical results agreed quite well with each other. It was found from the analytical results that the inclination angle scarcely affected the average melting rate despite the serious effects on the contacting mode and the heat flux distribution over the walls.