Simulation of a solid adsorption solar refrigerator using activated carbon/methanol adsorbent/refrigerant pair

Effect of heating time of adsorber-collector on the performance of a solar adsorption refrigerator

“…According to Anyanwu et al 2001, the heat loss from the lateral surfaces of adsorber-collector is assumed to be negligible. The global loss coefficient is given by Duffie and Beckman 2013 as follows:…”

“…Jing andExell 1994 used the coefficient of loss developed by Klein 1975 for simulation and sensitivity analysis of an intermittent solar-powered charcoal/methanol refrigerator. Anyanwu et al 2001 have made a study of an adsorption refrigerator using the charcoal/methanol pair, where the numerical model takes into account loss coefficient. The results of coefficient of performance (COP) are given according to the physical and dimensional characteristics of adsorber-collector.…”

An adsorptive solar ice-maker dynamic simulation for north Mediterranean climate

“…Instead, other models for simulation of the heat and mass transfer processes through the porous adsorbent bed of a solar-powered ice-maker, were proposed in [8][9][10][11][12]. In particular, Passos et al [8] presented a model which accounts for the resistances to mass transfer in the pellets by a linear driving force equation.…”

“…The calculated temperature and methanol concentration maps inside the collector tube, at different times of the day, were presented. Anyanwu et al [10] modelled the refrigerator prototype presented in [6] [12] used a model to study a solar adsorbent cooling system in which the adsorber is a metal tube packed with activated carbon/methanol pair and surrounded by a vacuum glass tube. This model, differently from those proposed in [8][9][10][11], accounted for the effects of non-uniform pressure distribution.…”

“…The works presented in [8][9][10][11][12] were mainly devoted to accurate modelling of the sorbent bed, but are not suitable to satisfactorily describe the other components of the ice-maker system; besides, they have been applied by simulating just one or two days. On the contrary, some models which accounted for the various system components have been proposed in [13][14][15].…”