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doi: 10.3850/978-981-08-7614-2_IMPRES056
A Resorption Refrigerator Driven by Low Grade Thermal Energy
H. S. Bao, R. Z. Wanga and L. W. Wang
Institution of Refrigeration and Cyrogenics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China.
arzwang@sjtu.edu.cn
ABSTRACT
A small refrigerator based on resorption refrigeration technique, employed MnCl2 and NH4Cl as working pair and ammonia as refrigerant, was presented for simultaneously cooling at 0—6°C and freezing at –16 to –14.5°C. The cooling capacity of this device was investigated by measuring the mass amount of the ice generated during a certain period of 3 hours’ operation, and the experiments were conducted at different ambient temperature ranging from 20°C to 35°C. The total cooling capacity was calculated 475 kJ per kg of the NH4Cl salt, and the mean specific cooling power (SCP) was 43 W per kg of the NH4Cl salt, the effective cooling production responsible for making ice accounted for 25%—42% of the total cooling capacity depending on the different operating conditions studied in this work.
Keywords: Resorption, Refrigerator, Manganese chloride, Ammonia chloride, Cooling capacity, Specific cooling power (SCP).
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