Study on Effect of Number of Transparent Covers and Refractive Index on Performance of Solar Water HeaterReport as inadecuate




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Journal of Renewable Energy - Volume 2014 2014, Article ID 757618, 11 pages -

Research Article

Energy and Environmental Engineering, School of Mechanical and Building Science, VIT University, Vellore 632014, India

CO2 Research and Green Technologies Centre, School of Mechanical and Building Science, VIT University, Vellore 63201, India

Received 2 May 2014; Revised 26 July 2014; Accepted 2 August 2014; Published 1 September 2014

Academic Editor: Jing Shi

Copyright © 2014 B. Kalidasan and T. Srinivas. 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.

Abstract

Liquid flat plate collector solar flat plate collector is one of the important applications in solar thermal system. The development in solar photovoltaic is an emerging challenge for the solar thermal system. In the current work an attempt has been made to optimize the number of transparent covers and refractive index to improve the optical efficiency and thermal efficiency for the collector. Performance of the liquid flat plate collector at VIT University Vellore has been simulated numerically for January 21st at an interval of half an hour with different numbers of transparent covers 0–3 and different refractive index values ranging from 1.1 to 1.7. The formulation and solutions are developed with simple software Microsoft Office Excel to result the performance characteristics. The result shows that the efficiency of the flat plate collector increases with an increase in number of covers and decreases after an optimum number of covers. It also decreases with an increase in refractive index. The combination of optimum number two and lower refractive index 1.1 results improved useful heat.





Author: B. Kalidasan and T. Srinivas

Source: https://www.hindawi.com/



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