Impact of three different enhancing mass transfer operating characteristics on a solar adsorption refrigeration system with compound parabolic concentrator

Chong Zhao, Yunfeng Wang, Ming Li, Wenkui Zhao, Xuejuan Li, Qiongfen Yu and Mengxiao Huang

Renewable Energy, 2020, vol. 152, issue C, 1354-1366

Abstract: An adsorption refrigeration system using a compound parabolic concentrator adsorber and an enhanced mass transfer method can improve the system performance. However, different operating modes and different methods of mass transfer enhancement within the system affect the performance heavily. The work compares system performances with four operating modes: three different enhanced mass transfer modes and the natural mass transfer mode. Comparative experiments are conducted under an indoor solar simulator scenario. The different performance parameters were compared, and the results showed that the system performance in all the enhanced mass transfer modes, i.e., mode 1 (one pump with one condenser), mode 2 (one pump with two condensers) and mode 3 (two pumps with two condensers), was higher than that of natural mass transfer mode (no pump with one condenser). The quantity of desorbed refrigerant increased by at least 11.8%, 19.0% and 17.1%, and the coefficient of performance increased by at least 10.0%, 18.4% and 15.8% or enhanced mass transfer modes 1, 2 and 3, respectively, compared with those of the natural mass transfer mode. The results also showed that mode 2 yielded the optimal performance, with the lowest system pressure and highest refrigerant desorption among the three enhanced mass transfer modes.

Keywords: Adsorption refrigeration; Compound parabolic concentrator; Activated carbon-methanol; Enhanced mass transfer modes (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:152:y:2020:i:c:p:1354-1366

DOI: 10.1016/j.renene.2020.01.110

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