Enhancement of Yield in Single Slope Solar Still by Composite Heat Storage Material – Experimental and Thermo-Economic Assessment

IF 2.1 4区工程技术 Q3 ENERGY & FUELS

Journal of Solar Energy Engineering-transactions of The Asme Pub Date : 2022-07-26 DOI:10.1115/1.4055100

Arivazhagan Sampathkumar, Subbarama Kousik Suraparaju, S. Natarajan

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引用次数: 14

Abstract

The main objective of this study is to enhance the yield of single slope solar still by extending the operating time of solar still by utilizing composite heat storage materials in the solar still. In this regard, the effect of the composite heat energy storage material developed by the mixture of beach sand with paraffin wax is investigated. The experiments are carried out in Solar Still with Composite Heat Storage Material (SSCHSM), and results are compared with Solar Still with Sensible Heat Storage Material (SSSHSM), Solar Still with Latent Heat Storage Material (SSLHSM), and Conventional Solar Still (CSS). The outcome of the two days' results showed that the total yield of SSCHSM, SSLHSM, SSSHSM, and CSS are 2050, 1880, 1420, and 1250 mL/m2 respectively on day 1 whereas on day 2 it is 2950, 2680, 2000, and 1820 mL/m2. The thermal analysis results indicated that the average thermal efficacy of SSCHSM, SSLHSM, SSSHSM, and CSS is 21.59,19.83,14.92, and 13.16 %, respectively, on day one and day two it is 27.42,24.94, 18.59, and 16.89 %. The economic analysis revealed that the cost per liter and payback month of SSCHSM is 0.031 and 6.2 months, whereas the cost per liter for SSLHSM, SSSHSM, and CSS was 0.034, 0.044, and 0.048, respectively. Moreover, the payback period for SSLHSM, SSSHSM, and CSS was 6.8 months, 8.8 months, and 9.7 months, respectively.

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复合蓄热材料提高单坡太阳能蒸馏器产量的实验和热经济性评估

本研究的主要目的是利用复合储热材料延长太阳能蒸馏器的运行时间，从而提高单坡太阳能蒸馏器的收率。为此，研究了沙滩砂与石蜡混合研制的复合蓄热材料的蓄热效果。在复合蓄热材料(SSCHSM)太阳能蒸馏器中进行了实验，并与显热材料(SSSHSM)、潜热材料(SSLHSM)和常规太阳能蒸馏器(CSS)进行了比较。结果表明，第1天SSCHSM、SSLHSM、SSSHSM和CSS的总产率分别为2050、1880、1420和1250 mL/m2，第2天为2950、2680、2000和1820 mL/m2。热分析结果表明，SSCHSM、SSLHSM、SSSHSM和CSS的平均热效率分别为21.59、19.83、14.92和13.16%，第一天和第二天的平均热效率分别为27.42、24.94、18.59和16.89%。经济分析表明，SSCHSM的每升成本和回收期分别为0.031和6.2个月，而SSLHSM、SSSHSM和CSS的每升成本分别为0.034、0.044和0.048个月。此外，SSLHSM、SSSHSM和CSS的投资回收期分别为6.8个月、8.8个月和9.7个月。

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来源期刊

Journal of Solar Energy Engineering-transactions of The Asme 工程技术-工程：机械

CiteScore

5.00

自引率

26.10%

发文量

审稿时长

6.0 months

期刊介绍： The Journal of Solar Energy Engineering - Including Wind Energy and Building Energy Conservation - publishes research papers that contain original work of permanent interest in all areas of solar energy and energy conservation, as well as discussions of policy and regulatory issues that affect renewable energy technologies and their implementation. Papers that do not include original work, but nonetheless present quality analysis or incremental improvements to past work may be published as Technical Briefs. Review papers are accepted but should be discussed with the Editor prior to submission. The Journal also publishes a section called Solar Scenery that features photographs or graphical displays of significant new installations or research facilities.