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Energies 2017, 10(1), 18; doi:10.3390/en10010018

Experimental Investigation on a Thermal Model for a Basin Solar Still with an External Reflector

1
Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
2
Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab, Department of Mechanical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangmod, Bangkok 10140, Thailand
*
Authors to whom correspondence should be addressed.
Academic Editor: Mark Deinert
Received: 13 October 2016 / Revised: 24 November 2016 / Accepted: 6 December 2016 / Published: 24 December 2016
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Abstract

In this study, a thermal model for estimating the efficiency of a basin solar still with an external reflector was introduced using the energy balance equations of different parts of the solar still. Then, in order to verify the precision and accuracy of this model, a basin solar still with an external reflector was constructed and some experiments were performed. The hourly temperature values for different places of the still and amount of distilled water were calculated using the thermal model and compared with experimental measurements. Comparisons show that the thermal model of the still is in good agreement with the experimental results. Therefore, it can be concluded that the introduced thermal model can be used reliably to estimate the amount of distilled water and efficiency of the basin solar still with an external reflector. Results also revealed that the efficiency of the solar still is low in the early hours, while it was enhanced 44% in the afternoon. Furthermore, it was concluded that the accumulated distilled water is 4600 mL/day and 4300 mL/day for theoretical and experimental examinations, respectively. View Full-Text
Keywords: basin solar still; thermal model; external reflector; desalination; still efficiency basin solar still; thermal model; external reflector; desalination; still efficiency
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Afrand, M.; Kalbasi, R.; Karimipour, A.; Wongwises, S. Experimental Investigation on a Thermal Model for a Basin Solar Still with an External Reflector. Energies 2017, 10, 18.

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