Sustainable potable water production from conventional solar still during the winter season at Algerian dry areas: energ
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Sustainable potable water production from conventional solar still during the winter season at Algerian dry areas: energy and exergy analysis Mohammed El Hadi Attia1 · A. Karthick2 · A. Muthu Manokar3 · Zied Driss4 · Abd Elnaby Kabeel5 · Ravishankar Sathyamurthy6 · Mohsen Sharifpur7,8 Received: 3 August 2020 / Accepted: 17 September 2020 © Akadémiai Kiadó, Budapest, Hungary 2020
Abstract The Algeria Sahara suffers from the scarcity of drinking water. Solar distillation is one of the simplest and generally inexpensive techniques to solve this problem. However, a second problem arises; this is low productivity in winter. The objective of this study is to overcome this difficulty by modifying the experimental setup by adding nanoparticles that compensate for the weak solar radiation in winter. The experimental results show that the daily productivity of conventional solar still in summer −2. Similarly conventional solar still with CuO nanoparticles in winter is 3 kg/m2 per is 3.5 kg m −2 and in winter is 2.2 kg m day. The productivity of the conventional solar still without CuO nanoparticles in summer is best as compared to others. When comparing productivity during the winter season, it is found that the productivity of the modified distillery was 1.4 times better than the productivity of the unmodified distillery. The daily exergy efficiency of the conventional solar still in summer and winter is equal to 1.2 and 1.58%, respectively. The use of CuO nanoparticles in winter season has exergy efficiency equal to 2.41%. The daily exergy efficiency of the solar still was increased by 52.5% when using CuO nanoparticles in the winter season. Keywords Desalination · Drinking water · Winter season · Summer season · Solar energy · CuO nanoparticles Abbreviations CSSS Conventional solar still in summer CSSW Conventional solar still in winter MSSW Modified solar still in winter PCM Phase change materials TSS Tubular solar still I(t) Solar intensity Ta Air temperature
* Mohammed El Hadi Attia [email protected] * Mohsen Sharifpur [email protected]; [email protected] 1
Department of Physics, Faculty of Science, El Oued University, El Oued, Algeria
2
Department of Electrical and Electronics Engineering, KPR Institute of Engineering and Technology, Arasur, Coimbatore, Tamil Nadu, India
3
Department of Mechanical Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Tamil Nadu, India
Ts.w Salt water temperature Tc.c Collector cover temperature
Introduction The scarcity of drinking water in the world, especially in desert areas, has stimulated researchers efforts to find desalination techniques for saline water [1, 2]. However, 4
Laboratory of Electromechanical Systems (LASEM), National School of Engineers of Sfax, University of Sfax (US), B.P. 1173, 3038 Sfax, Tunisia
5
Department of Mechanical and Power Engineering, Faculty of Engineering, Tanta University, Tanta, Egypt
6
Department of Mechanical Engineering, KPR Institute of Engineer
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