These results motivated us to investigate the energetic efficiency of a new concept based on an indirect (instead of direct) PV-TE coupling using state-of-the-art thermal transfer calculations. Therefore a negative effect is obtained on the overall performance. To increase the temperature of the PV module (rather than reducing it) due to the low thermal conductivity of the used thermoelectric material. Unfortunately, it was noticed that such a concept tends ⇑ Corresponding author. Currently, many efforts are devoted to develop this novel hybrid system. The TE system has in addition another role that consists in reconverting the transmitted irradiation from the PV system to an additional electric energy. Indeed, this PV-TE combination is an interesting alternative since the excess heat (or thermalization) in the PV system can though be transferred to the TE system where it is converted to an electric energy. One way of overcoming such obstacles, a hybrid system that directly interconnects photovoltaic (PV) and thermoelectric (TE) systems was proposed in the literature. As far as the performance/cost ratio is concerned, huge progress has been made to improve the efficiency but the latter is still seriously suffering from phenomena such as reflection, transmission and thermalization.
In this context, enormous work has already helped increasing the charge mobility of photoelectric compounds and improving the absorption of solar radiation. Introduction The design of advanced photovoltaic (PV) systems with high electricity generation efficiency and low total development cost is of importance for harvesting solar energy. Our major finding showed that the indirect coupling significantly improve the overall efficiency which is very promising for future photovoltaic developments. In our model, a concentrator is placed between photovoltaic and thermoelectric systems without any physical contact of the three components. Using state-of-the-art thermal transfer calculations, we have shown that such an indirect coupling is an interesting alternative to maximize solar energy exploitation. In the present study, we investigate the energetic efficiency of a new concept based on an indirect (instead of direct) photovoltaic and thermoelectric coupling. Keywords: Indirect coupling Photovoltaic Thermoelectric Hybrid system Heat transfer EfficiencyĪ b s t r a c t Advanced photovoltaic devices with a high performance/cost ratio is a major concern nowadays. LMPHE, URAC-12, Faculty of Sciences, Mohammed V University in Rabat, 10000 Rabat, Morocco CNESTEN (National Centre for Energy, Sciences and Nuclear Techniques), Route de Kenitra – Maamora, Morocco c Department of Materials and Process, ENSAM, Moulay Ismail University, Meknes, Morocco d CEMHTI-CNRS, Site Cyclotron 3A, rue de la Férollerie, 45071 Orléans, France e SOLEMS S.A., 3 Rue Léon Blum, 91120 Palaiseau Paris, France bĪrticle history: Received 30 September 2016 Received in revised form 28 December 2016 Accepted 29 December 2016 Energy Conversion and Management 136 (2017) 184–191Ĭontents lists available at ScienceDirectĮnergy Conversion and Management journal homepage: Photovoltaic and thermoelectric indirect coupling for maximum solar energy exploitation M.
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