Theoretical Analysis of Solar Unglazed Hybrid Photovoltaic Thermal Liquid Collector
Abstract
Detailed mathematical model of unglazed solar flat-plate hybrid photovoltaic-thermal (PV-T) liquid collector has been presented for standalone and building envelope integrated alternative. Model calculates the heat transfer from absorber (PV cell) to ambient and heat transfer from absorber to liquid through fin-pipe cooler. Influence of design parameters and operation conditions (temperature, wind, solar irradiance) on electrical and thermal characteristics of PV-T collector has been analyzed in several examples and results have been presented. Performance modelling possibilities of the model for unglazed PV-T or separate PV and PT solar collectors have been shown.