Abstract
In this communication, a steady state analysis of a phase change component material (PCCM) collection-cum-storage walls/roof system has been presented by incorporating the effect of water flow through a parallel plate placed at the liquid and solid interface. The effect of various parameters, i.e. fraction of melted region, walls/roof thickness, flow rate and latent heat of fusion of PCCM on heat flux entering the air conditioned room has been studied in detail. Numerical calculations have been made for two typical days at Delhi (18 June 1983 and 18 January 1984). The following conclusions have been made: (i) thermal load levelling decreases with an increase of the fraction of melted region and vice versa for total thickness of walls/roof; and (ii) phase shift of 10 h is observed for 40–50% fraction of melted region for walls/roof thickness of 0.10 m.
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