Experimental study on performance of phase change microcapsule cold storage solar composite refrigeration system

Huifan Zheng, Guoji Tian, Chenwei Yang, Yahui Zhao, Luhan Cao, Xin Xin, Jin Zhou and Yunhan Zheng

Renewable Energy, 2022, vol. 198, issue C, 1176-1185

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.

Keywords: Phase change microcapsules; Cold storage; Solar cooling; System performance (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:198:y:2022:i:c:p:1176-1185

DOI: 10.1016/j.renene.2022.08.133

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