Thesis CUANTIFICACIÓN EXPERIMENTAL DE LOS EFECTOS DE LA INSTALACIÓN DE UNA LÁMINA REFLECTORA DE RADIACIÓN EN UN PANEL FOTOVOLTAICO
Date
2019-10
Authors
BENÍTEZ BELMAR, BRAULIO ANTONIO
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
El potencial de energía solar en Chile y el constante crecimiento de la tecnología solar fotovoltaica han contribuido a un mejor aprovechamiento del recurso solar. Por esto, y con el fin de aumentar la cantidad de irradiancia por superficie, es que se han realizado estudios de módulos fotovoltaicos con adición de reflectores de radiación en diversas partes del mundo, e incluso hasta plantas solares con esta tecnología. Con el fin de obtener registros confiables y de primera fuente es que se implementa un sistema de medición, para realizar el estudio de los efectos de dos tipos de láminas reflectivas de radiación; Cool mirror 330 de 3M y papel aluminio, en dos paneles fotovoltaicos de silicio monocristalino de 250[W] nominales que están continuamente inyectando a la red eléctrica, uno de ellos expuesto solo a la radiación solar y el otro expuesto adicionalmente a las láminas reflectivas radiación nombradas. El sistema de medición permite registrar variables; eléctricas como corriente y voltaje continuo; térmicas como temperatura en la cara posterior del módulo fotovoltaico; y meteorológicas como temperatura ambiente e irradiancia solar para cada panel fotovoltaico. Todas las variables mencionadas son medidas y registradas cada un minuto, lo que permite tener una base de datos continua, confiable y de primera fuente para posteriores estudios. Parte de los resultados son que el desempeño del reflector de papel aluminio y el Cool mirror 3M son similares. En promedio la potencia aumentada por el reflector respecto a un panel fotovoltaico sin este es de 3,9 [%] para el Cool mirror y de un 6,9[%] al utilizar el aluminio, en un día de invierno. En primavera y en mejores condiciones de irradiancia se logró registrar un aumento promedio de la potencia de hasta 10,6 [%] utilizando aluminio como reflector.
The potential of solar energy in Chile and the constant growth of solar photovoltaic technology have contributed to a better use of the solar resource. For this reason, and in order to increase the amount of irradiance per surface, it is that studies of photovoltaic modules have been carried out with the addition of radiation reflectors in various parts of the world, and evento solar plants with this technology. In order to obtain reliable and first source records, a measurement system is implemented to study the effects of two types of radiation reflective sheets; Cool mirror 330 of 3M and aluminum foil, in two nominal 250 [W] monocrystalline silicon photovoltaic panels that are continuously injecting into the mains, one of them exposed only to solar radiation and the other additionally exposed to radiation reflective sheets named. The measurement system allows to record variables; electrical as current and continuous voltage; thermal as temperature on the back of the photovoltaic module; and meteorological as ambient temperature and solar irradiance for each photovoltaic panel. All the mentioned variables are measured and recorded every one minute, which allows for a continuous, reliable and first-rate database for further studies. Part of the results are that the performance of the aluminum foil reflector and the Cool mirror 3M are similar. On average the power increased by the reflector compared to a photovoltaic panel without it is 3.9 [%] for the Cool mirror and 6.9 [%] when using aluminum, on a winter day. In spring and in better irradiance conditions, an average power increase of up to 10.6 [%] was recorded using aluminumas a reflector.
The potential of solar energy in Chile and the constant growth of solar photovoltaic technology have contributed to a better use of the solar resource. For this reason, and in order to increase the amount of irradiance per surface, it is that studies of photovoltaic modules have been carried out with the addition of radiation reflectors in various parts of the world, and evento solar plants with this technology. In order to obtain reliable and first source records, a measurement system is implemented to study the effects of two types of radiation reflective sheets; Cool mirror 330 of 3M and aluminum foil, in two nominal 250 [W] monocrystalline silicon photovoltaic panels that are continuously injecting into the mains, one of them exposed only to solar radiation and the other additionally exposed to radiation reflective sheets named. The measurement system allows to record variables; electrical as current and continuous voltage; thermal as temperature on the back of the photovoltaic module; and meteorological as ambient temperature and solar irradiance for each photovoltaic panel. All the mentioned variables are measured and recorded every one minute, which allows for a continuous, reliable and first-rate database for further studies. Part of the results are that the performance of the aluminum foil reflector and the Cool mirror 3M are similar. On average the power increased by the reflector compared to a photovoltaic panel without it is 3.9 [%] for the Cool mirror and 6.9 [%] when using aluminum, on a winter day. In spring and in better irradiance conditions, an average power increase of up to 10.6 [%] was recorded using aluminumas a reflector.
Description
Keywords
PANELES SOLARES FOTOVOLTAICOS , ENERGIA SOLAR , ENERGIA RENOVABLE