Modelisation et optimisation des capteurs solaires hybrides.

Abstract

The growing in demand of energy risks exhausting totally different conventional fields, so in order to mitigate many states turn to deal with it and in the same time they wanted to maximize performance with less costs. Thus we have developed a study highlighting the use of solar by introducing the hybrid photovoltaic / thermal collector consisting of a PV module under which a heat exchanger is provided to ensure the cooling of the cells. The energy produced will be used to generate electricity and heat. At this stage we have studied the feasibility by taking two elements that are plastics as cover and nanofluids as cooling fluid. Regarding plastics, these have proved to be the most widely used materials for the manufacture of various components, in particular those of solar heating ... etc. As for nanofluids, it is a new technology that has revolutionized all those that have preceded it because they have high thermo physical properties. At this stage, the study proposes the simulation of two different systems in forced convection inside the fluid channel, both for plastics and for nanofluids, the two systems proposed were based on the development of an energy balance between the different nodes of the system. Hence the equations will be discretized and then introduced into a program written in Matlab for the purpose of calculating the unknowns and also being able to validate our results. The results show that the use of PMMA is beneficial for transmitting more radiation compared to the glass and as for the nanofluids, the extraction of the heat under the panel proved to be better compared to the conventional fluids.