Thermal performance improvement of solar desalination system integrated with a heat pump, evacuated tube, hanging wick, reflector, and cover cooling

초록

This work studied the performance of the hanging wick tubular solar still (TSS) using three experimental configurations. In Case 1, the system was tested using a heat pump and an evacuated tube water heater. Case-2 added cover cooling to the prior configuration. In Case-3, a reflector was added to the previous configuration. The modified TSS's performance was compared to that of the reference TSS (CSS) using three different test sets performed under same atmospheric conditions. The results revealed that the daily production for TSS (Case-1), TSS (Case-2), and TSS (Case-3) was 14.88, 16.28, and 19.27 L/m2, respectively. Additionally, employing cover cooling or reflector increased TSS output by 21% and 105%, respectively. Consequently, the tested adjustments to the TSS demonstrated a considerable improvement in both productivity and efficiency, making them highly effective enhancements for boosting TSS performance, with productivity reaching nearly 20 L/m2. day. The freshwater produced via TSS (Case-3) cost was 0.0169 $/Lwhichdecreasedby27.8$122.75. © 2026 Elsevier Ltd

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