Modeling and optimization of a solar adsorption cooling system under weather conditions in Algeria

In order to optimize and Aiming to the efficiency improvements of a solar adsorption refrigeration system. The present work evaluates the influence of the operating parameters, the solar collector location and the working pair type on the performance of a solar adsorption refrigeration system. As a test case, five sites of the solar collector in Algeria were investigated in a representative day of April. The used model for this study is the thermodynamic .Dubinin-Astakhov (D-A) model and takes into account the variation of the solar intensity and the adsorption capacity of the selected working pairs which were: AC/methanol, Zeolite/water and composite/ethanol.The performance considered in this study was the system coefficient of performance COP.The pressure-temperature-concentration (P-T-X) diagram of the selected pairs is presented for a temperature range from 27˚C to 127˚C and an adsorption process pressure of 2 bars.The maximum adsorption capacity was found to be 0.31, 0.25 and 0.62 kg of adsorbate/kg of adsorbent, respectively for the selected working pairs. Results show that the maximum COP of 0.314 was achieved with Zeolite/water while minimum COP of o.107 was achieved with AC/Methanol working pair. Received on, 10 February 2025 Accepted on, 10 April 2025 Published on, 13 April 2025