Abstract
This paper proposes a solar jet-compression composite cooling system with phase change microcapsule storage and build a cooling storage-type solar composite refrigeration system and operational performance test platform. A microencapsulated suspension with a base solution of deionized water was prepared, and sodium dodecyl sulfate (SDS) 0.2%, xanthan gum 0.2%, and sodium chloride (NaCl) 0.5% were added. The operating characteristics of the solar cooling system and the variation in the storage performance of the phase change material under evaporation temperatures of −5 °C and −10 °C and suspension mass fractions of 10% and 15% were investigated. It was found that the temperature of the suspension with a 15% mass fraction decreased by 7.34 °C when the storage time reached 100 min and that of the suspension with a 10% mass fraction decreased by 8.20 °C in the same storage time. The storage capacity of the microencapsulated suspension was greater than that of water within the same storage time. The storage capacity of the 10% suspension at 33 min is 2765.01 kJ, which is 63.1% more than that of water, indicating that the suspension has better storage performance.
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