Performance Analysis of a Solar Cooling System with Equal and Unequal Adsorption/Desorption Operating Time

Farkad A. Lattieff, Mohammed A. Atiya, Jasim Mahdi, Hasan Sh. Majdi, Pouyan Talebizadehsardari and Wahiba Yaïci
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Farkad A. Lattieff: Department of Energy Engineering, University of Baghdad, Baghdad 10071, Iraq
Mohammed A. Atiya: Al-Khawarizmi College of Engineering, University of Baghdad, Baghdad 10071, Iraq
Hasan Sh. Majdi: Department of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University College, Babylon 51001, Iraq
Pouyan Talebizadehsardari: Centre for Sustainable Energy Use in Food Chains, Institute of Energy Futures, Brunel University London, Kingston Lane, Uxbridge UB8 3PH, UK
Wahiba Yaïci: CanmetENERGY Research Centre, Natural Resources Canada, 1 Haanel Drive, Ottawa, ON K1A 1M1, Canada

Energies, 2021, vol. 14, issue 20, 1-16

Abstract: In solar-thermal adsorption/desorption processes, it is not always possible to preserve equal operating times for the adsorption/desorption modes due to the fluctuating supply nature of the source which largely affects the system’s operating conditions. This paper seeks to examine the impact of adopting unequal adsorption/desorption times on the entire cooling performance of solar adsorption systems. A cooling system with silica gel–water as adsorbent-adsorbate pair has been built and tested under the climatic condition of Iraq. A mathematical model has been established to predict the system performance, and the results are successfully validated via the experimental findings. The results show that, the system can be operational at the unequal adsorption/desorption times. The performance of the system with equal time is almost twice that of the unequal one. The roles of adsorption velocity, adsorption capacity, overall heat transfer coefficient, and the performance of the cooling system are also evaluated.

Keywords: solar energy; solar cooling; silica-gel-water; adsorption modeling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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