A SOLAR-POWERED ICE-MAKER WITH THE SOLID ADSORPTION PAIR OF ACTIVATED CARBON AND METHANOL

摘要

This paper presents the description and operation of a solar-powered ice-maker with the solid adsorption pair of activated carbon and methanol. A domestic type of charcoal was chosen as the adsorbent, and a simple flat-plate collector with an exposed area of 0.92 m2 was employed to produce ice of about 4--5 kg d~-1 at an evaporator temperature of about - 6 deg. C. The above system could achieve solar refrigeration COP of about 0.l--0.l2. With the description of the idealized refrigerating system, the influences of evaporating temperature, adsorbing temperature and condensing temperature on the COP were also analysed.