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ABSTRACT
In this study, a comparison was made between a simple solar still (SSS) and a simple solar still connected to a heat pump (SSSHP) to study the effect of the heat pump on water productivity and heat transfer rates inside the distillation cell under weather conditions in the region of Ouargla (south of Algeria). The tests were carried out in April 2018 when the radiation on the study day was 950 W/m2. This comparison clarified the behaviour of the physical properties inside the distillation cell. The results showed that the average daily production of the simple solar still was about 2.75 L/m2.d. This quantity has been improved to 9.60 L/m2.d by adding an evaporator with a heat pump to the rear of the distillation cell, where the water productivity estimated is about 2.5 times higher than a conventional simple still and studied how to install a heat pump and operate it.
Acknowledgements
The authors would like to acknowledge with appreciation to physics department, University Kasdi Merbah, Ouargla, Algeria; for providing startup research, and gratefully acknowledge the financial support for this research through LENREZA laboratory.
Disclosure statement
No potential conflict of interest was reported by the author(s).