Effect of sinusoidal cylindrical surface of PCM on melting performance

Experimental evaluation of heat transfer performance under natural and forced convection around a phase change material encapsulated in various shapes

“…The results showed a comparatively lower melting time for the vertically oriented ellipse of the annulus, however the charging time was deemed very inefficient for this configuration. Awasthi et al [24] investigated the melting characteristics of a cylindrical capsule with a sinusoidal capsule surface, varying the sinusoid amplitudes and frequencies. Maintaining the capsule cross-sectional area constant, while increasing its circumference (increasing the SA/V ratio) through a larger sinusoid amplitude, showed a decrease in melting time.…”