Diseño conceptual de un colector solar de placa plana portable con integración de materiales transparentes de aislamiento
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En este trabajo se desarrolla una metodología para realizar el diseño de un colector solar de placa plana (CPP) con la integración de materiales transparentes de aislamiento (TIM). Estos materiales son transparentes a las longitudes de onda de la radiación solar y al mismo tiempo proveen aislamiento térmico, restringiendo las pérdidas de energía en longitudes de onda del infrarrojo lejano vía re-radiación y por conducción. Finalmente, se realiza un modelo matemático simplificado, a partir de resistencias térmicas y flujos de calor unidireccionales, para evaluar y comparar el desempeño de un colector convencional frente un colector con TIM, variando algunas de sus propiedades como al emitancia, conductividad y coeficiente de extinción, además del espesor de los gaps presentes en el sistema.
In this work, a way to design a flat plate solar collector with the integration of transparent insulation materials (TIM) was developed. These materials are transparent to the wavelengths of solar radiation and at the same time thermal insulation is provide. The energy losses by conduction and re-radiation at far-infrared wavelengths are restricted. Finally, from unidirectional heat flow rate and thermal resistances simplified mathematical model was made, varying its emittance, conductivity and extinction coefficient as well as the gaps thickness present in the system, to evaluate and compare a conventional collector and collector with TIM.
In this work, a way to design a flat plate solar collector with the integration of transparent insulation materials (TIM) was developed. These materials are transparent to the wavelengths of solar radiation and at the same time thermal insulation is provide. The energy losses by conduction and re-radiation at far-infrared wavelengths are restricted. Finally, from unidirectional heat flow rate and thermal resistances simplified mathematical model was made, varying its emittance, conductivity and extinction coefficient as well as the gaps thickness present in the system, to evaluate and compare a conventional collector and collector with TIM.
Palabras clave
Colector Solar, Eficiencia, TIM, Pérdidas de Calor, Radiación solar, Solar collector, Efficiency, TIM, Losses of heat, Solar radiation