Learn and talk about Suhas Pandurang Sukhatme, and check out. Solar Energy - Principles of. Interview with Chronicle Editor. Journal of Solar Energy Engineering. Sukhatme, S.P., “Solar energy principles of thermal collection and storage,”;. Evacuated tube solar collectors integrated with phase change materials. This paper presents a novel method of integrating phase change materials (PCMs) within the evacuated solar tube collectors for solar water heaters (SWHs). In this method, the heat pipe is immersed inside the phase change material, where heat is effectively accumulated and stored for an extended period of time due to thermal insulation of evacuated tubes. The benefit of this method includes improved functionality by delayed release of heat, thus providing hot water during the hours of high demand or when solar intensity is insufficient. The proposed solar collector utilizes two distinct phase change materials (dual- PCM), namely Tritriacontane and Erythritol, with melting temperatures of 7. The operation of solar water heater with the proposed solar collector is investigated during both normal and on- demand operation. The feasibility of this technology is also tested via large scale commercial solar water heaters. Beyond the improved functionality for solar water heater systems, the results from this study show efficiency improvement of 2.
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August 2017
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