Comparative techno-economic assessment of photovoltaic driven DC refrigerators with battery and with ice storage

Cooling performance and economic parameters of solar powered refrigerators with two different configurations were studied. The first configured refrigerator includes accumulation battery for energy storage while second, batteryless configuration of refrigerator employs water ice bank to store cold energy. The refrigerator with battery kept cooling cabinet temperature within given ranges, 0 C – 7 C during summer months when this parameter for the batteryless refrigerator varied between 0.9 C – 6.7 C during the same period. It was found that the refrigerator with ice storage is 1.6 times cheaper than the refrigerator with accumulation battery.

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