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Photovoltaic thermal hybrid solar collector
About: Photovoltaic thermal hybrid solar collector is a research topic. Over the lifetime, 8688 publications have been published within this topic receiving 232734 citations.
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09 Aug 1977TL;DR: In this article, the solar cells are cooled by circulating a heat exchange fluid through the interior of solar cells and the heat captured by such fluid may be utilized, for example, to provide hot water for a heating system.
Abstract: Tubular solar cells are provided which can be coupled together in series and parallel arrays to form an integrated structure. Solar energy concentrators are combined with the solar cells to maximize their power output. The solar cells may be cooled by circulating a heat exchange fluid through the interior of the solar cells and the heat captured by such fluid may be utilized, for example, to provide hot water for a heating system. The coolant circulating system of the solar cells also may be integrated with a solar thermal device so as to form a two-stage heating system, whereby the coolant is preheated as it cools the solar cells and then is heated further by the solar thermal device.
129 citations
TL;DR: In this article, a unique solar thermal electric system is proposed and tested in the present study, which uses an organic working fluid, which is suitable for a temperature range appropriate for solar energy, is adopted.
Abstract: A unique solar thermal electric system is proposed and tested in the present study. In this system, an organic working fluid, which is suitable for a temperature range appropriate for solar energy, is adopted. We call this system as “solar organic Rankine cycle system” (SORCS). In order to improve the thermal efficiency by using solar energy, a displacement-type scroll expander and compound parabolic concentrator (CPC) solar collector are used. This system consists of very simple components that are similar to the ones used in an air conditioner and is very cost effective. The present paper reports on the experimental results of the scroll expander unit and the practical operation of the proposed SORCS under actual solar radiation input. The total thermal efficiency of the present SORCS attains 7% (42% when cooling water is used for the cogeneration system).
129 citations
TL;DR: In this article, a hybrid solar desalination system comprising a humidification-dehumidification and four solar stills was proposed to increase the gain output ratio of the system by 50% and also increased the efficiency of single solar still to about 90%.
129 citations
TL;DR: In this article, the efficiency of donor-acceptor organic solar cells has been investigated and it is shown that devices with crossing electrodes and unpatterned (semi)conducting organic layers can collect a non-negligible current from regions usually not considered as part of the photovoltaic element, a fact that might lead to an overestimation of the power conversion efficiency.
Abstract: Easily adjustable parameters such as area and design can affect the determination of the efficiency of donor-acceptor organic solar cells. Devices with crossing electrodes and unpatterned (semi)conducting organic layers can collect a non-negligible current from regions usually not considered as part of the photovoltaic element, a fact that might lead to an overestimation of the power conversion efficiency.
128 citations
TL;DR: In this paper, a photovoltaic thermal collector was constructed by laminating a copper sheet directly to the silicon cell, thereby reducing the thermal resistance and its performance was improved by using copper oxide -water (CuO/H 2 O) nanofluid.
128 citations