Small-scale solar-based adsorption ice maker for Indian climate

In this paper, simulation of a small scale solar-based adsorption ice maker is presented. The system, consisting of activated carbon (Maxsorb III) in the solar collector bed and an evaporator/cold box, can produce and store up to 10 kg of ice per day in Indian climate. The calculations are based on climatic data from India and on energy balances of the components of the system. Methanol is the best working fluid for adsorption temperatures below 28 °C and ethanol is the best working fluid for above 28 °C. The thickness of the bed is calculated to a maximum of 7.5 cm to have a required cooling time. The adsorption ice maker with 1 m2 solar collector and 20 kg of adsorbent can provide cooling capacity equivalent to 5 to 10 kg of ice per day with respect to climate conditions.