Abstract
The primary objective of this paper is to present a dynamic photovoltaic/thermal collector model in combination with a thermal energy storage tank. The added value of the proposed model is the use and integration of existing dynamic models for describing the entire photovoltaic/thermal system. The presented model was validated using measurements on the experimental system located at the Institute of Energy Technology, Faculty of Energy Technology, University of Maribor. The validation was carried out based on three different weather conditions—sunny, cloudy, and overcast. The validation results were evaluated using the normalized root mean square error and mean absolute percentage error for the temperature and output power of the photovoltaic/thermal collector and the temperature of the thermal energy storage tank. The model results concurred with the measurements, as the average mean absolute percentage error values for the temperature and output power of the photovoltaic/thermal collector and thermal energy storage tank temperature were 5.82%, 1.51%, and 7.58% respectively.
Highlights
IntroductionPhotovoltaic/thermal (PV/T) solar systems have appeared on the market in the last 15 years to improve the performance, lifespan, and energy yield of commercial PV systems
Photovoltaic/thermal (PV/T) solar systems have appeared on the market in the last 15 years to improve the performance, lifespan, and energy yield of commercial PV systems.Unlike commercial PV modules, PV/T collectors have a heat exchanger or cooling fins mounted on the rear of the PV module
This paper presents a novel dynamic model of a PV/T collector in combination with a thermal energy storage tank (TEST), which consists of three interconnected parts via temperature and output power
Summary
Photovoltaic/thermal (PV/T) solar systems have appeared on the market in the last 15 years to improve the performance, lifespan, and energy yield of commercial PV systems. Unlike commercial PV modules, PV/T collectors have a heat exchanger or cooling fins mounted on the rear of the PV module. The primary task of the heat exchanger is to reduce the temperature of the PV module, increasing the electrical efficiency of the PV module and the yield of electricity production [1]. The excess heat taken from the PV module can be used for low-temperature heating applications. Pool heating is one of the many heating applications of a waste heat PV/T collector. Vanoli et al [2]
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