Cool thermal discharge obtained with air flowing over melting ice by complete removal of melt

A new device of ice melting with performance improved has been developed by complete removal of melt to produce chilled air during on-peak power consu mption. Energy equations have been derived, from the integral boundary-laye r analysis, for estimating the thickness of the ice melted and the thermal penetration distance in ice layer region with convective boundary condition on free surface. Numerical examples have been illustrated in which the air temperature was specified and varied with time to simulate practical syste ms. Results show that complete removal of melt in cool-thermal discharge sy stems can enhance the flux of discharge due to heat transfer being much eas ier than that in the systems without removal of melt. Therefore, considerab le improvement in performance of cool thermal discharge can be accomplished if the system is operating with rather than without complete removal of me lt. (C) 2000 Elsevier Science Ltd.