Análisis experimental de la relación de la temperatura de operación de un módulo fotovoltaico y su voltaje de circuito abierto
Trabajo de grado - Maestría
Universidad Autónoma de Occidente
The energy from solar resource is obtained by making use generally of photovoltaic modules, also known as solar panels, or photovoltaic cells, these elements exist commercially both poly-crystalline and mono-crystalline, this difference lies in the composition in the manufacturing process , which leads to both types having different efficiencies. This project seeks to generate an increase in the efficiency of electrical energy obtained through the solar resource, attacking a cause. punctual: The plates of the photovoltaic modules deliver operating conditions at a temperature of 25 ° C, measurement that is based on the standard STC test conditions, in English, which are circumstances under which a module is tested in the laboratory as a rule , these series of tests allows to determine its point of maximum power, that is to say, at that temperature of operation is where better the relation of conversion between incident solar energy and power watts delivered, reflected in turn in the greater amount of voltage of open circuit. These conditions are unlikely to be found in the sites where these elements are generally located, that is, the photovoltaic modules, most of the time of operation are outside their high efficiency range, wasting the solar resource and as a consequence disturbs the production of electrical energy for exploitation. Using experimental design methodologies, three different convection, natural conduction and forced conduction cooling systems were tested. Having as output variable the open circuit voltage of each module, obtaining conclusive data related to elements and components that will help to increase the efficiency of the PV systems, thus requiring lower investment cost for the same electrical delivery power. Key Words: PV, Photovoltaic Module, Refrigeration, Efficiency, Solar Energy.
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