DBPapers

THERMAL ANALYSIS OF SOLAR CELL USING IN BIPV

G. Badea, V. Gagea-Manitiu, A. Gagea, A. Badita, M. Dumitrescu
Wednesday 19 December 2018 by Libadmin2018

ABSTRACT

The performance of solar modules is fundamental during the conversion process in electrical energy, depending on the temperature of the solar cell. The photovoltaic power and efficiency decrease with temperature rise, Tc. In this paper are found useful aspects regarding the increase of the temperature of solar cells correlated with commercial photovoltaic panels, based on thermal monocrystalline silicon. Correlation of all parameters in terms of materials used by the photovoltaic industry, as well as weather conditions are difficult as long as they have an impact on the operation of a photovoltaic module. We have followed a numerical thermal model in accordance with the heat transfer exchanges trough convection and radiation of a solar cell corresponding to a photovoltaic module that can determine heat transfer coefficients and cell layer resistances, for the numerical determination of the temperature TSi and Tc, behind a module with environmental conditions and the configuration of a solar cell. By following these aspects, they also conclude that photovoltaic modules integrated in the building envelope, if there is an additional layer of air corresponding to Ta, can be transformed into an additional layer of protection by improving the thermal attributes of a building, and at the same time reducing the temperature Tc, increasing the performance of the photovoltaic modules, concluding that building integrated photovoltaic systems BIPV play an important role in the energy performance of buildings. We have to keep in mind that the distribution of photovoltaic energy potential, the effect of irradiation and ambient temperatures on a photovoltaic system performance varies according to geographic position and implicitly depending on climatic zones, at the same time these parameters applied in the equations depend on the operating temperature.

Keywords: photovoltaic energy, solar cell temperature, photovoltaic module, energy efficiency, thermal model.


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