Experimental investigation of a copper sheet-laminated solar photovoltaic thermal water collector

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• 作者：Jee Joe Michael ; Iniyan Selvarasan
• 关键词：Solar PV/T ; Thermal resistance ; PV testing ; Hybrid ; Combined heat and power
• 刊名：Energy Efficiency
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：10
• 期：1
• 页码：117-128
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Energy Economics; Renewable and Green Energy; Environmental Economics; Environment, general; Sustainable Development;
• 出版者：Springer Netherlands
• ISSN：1570-6478
• 卷排序：10

文摘

Different concepts and designs of photovoltaic thermal (PV/T) collectors were developed for the past few decades to improve the electrical and thermal efficiencies. Several of those designs have become successful and are being commercialized along with other solar collectors. This paper discusses the experimental studies on a novel PV/T water-based collector constructed by laminating the PV cells on a copper thermal absorber. This modification reduced the thermal resistance by 9.93 %, thereby enabling better heat transfer from the PV cells to the heat transfer fluid. Water was passed through a single water channel connected to an open reservoir. Experiments were conducted with and without glazing, with two different water mass flow rates and stagnant conditions, and with load and no-load conditions and thermal stress test. Results show that an overall efficiency of 87.52 % was achieved in the presence of glazing at a mass flow rate of 0.1 kg/s. Few conformance tests according to IEC standards are also presented to check the electrical insulation and structural integrity of the PV/T collector.