Abstract

This paper presents experimental results for a prototype intermittent solar adsorption ice-maker using water as the refrigerant and silica gel as the adsorbent. Four external flat reflectors made of polished stainless steel were used to enhance the performance. On a cloudy day, without reflectors, a minimum temperature of 7 °C was reached, so no ice was made. With reflectors 0.5 kg of ice was made from a 9 kg load. Increasing the load of water tended to increase the solar COP. The effect of the initial mass of refrigerant was also investigated.

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