In this paper, analytical expression for characteristic equation of double slope solar still (DS) included with series connected N identical evacuated tubular collectors (N-ETC-DS) has been developed. The derivation is based on fundamental energy balance equations for various components of the proposed system. The analytical result of the proposed N-ETC-DS has been compared with results reported by earlier researchers for the same basin area under similar climatic condition. It has been concluded that daily energy efficiency is higher by 23.90%, 26.45%, and 42.65% for N-ETC-DS than N identical partially covered photovoltaic thermal (PVT) compound parabolic concentrator collectors (CPC) integrated double slope solar still, N identical partially covered PVT flat plate collectors (FPC) integrated double slope solar still, and conventional double slope solar still (CDS), respectively, at 0.14 m water depth under optimized condition. Moreover, daily yield, exergy, energy and exergy efficiency have been computed.
Analytical Characteristic Equation of N Identical Evacuated Tubular Collectors Integrated Double Slope Solar Still
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received February 7, 2017; final manuscript received May 1, 2017; published online July 18, 2017. Assoc. Editor: Carlos F. M. Coimbra.
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Singh, D. B., and Tiwari, G. N. (July 18, 2017). "Analytical Characteristic Equation of N Identical Evacuated Tubular Collectors Integrated Double Slope Solar Still." ASME. J. Sol. Energy Eng. October 2017; 139(5): 051003. https://doi.org/10.1115/1.4036855
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