EXPERIMENTAL ANALYSIS OF THE EFFECTS OF EXTERNAL FACTORS AND CLIMATE CHANGE ON THE PERFORMANCE OF A TROMBE WALL INTEGRATED WITH PHOTOVOLTAIC MODULES
Abstract
Trombe walls integrated with photovoltaic (PV) modules were evaluated as sustainable systems enhancing the energy efficiency of buildings. The analysis was conducted on two models — with DC fans and without — under dusty and dust-free conditions. On dust-free days, when fans were used, the system’s thermal and electrical efficiencies were 12.2% and 18.4%, respectively, whereas these values were significantly higher in the fan-free mode. Under dusty conditions, a decrease in efficiency was observed in both models.
This study explores the potential for significantly reducing building energy consumption by integrating solar energy into roof and façade structures. A comparative analysis was performed on the temperature profiles of two Trombe wall configurations: a ventilated wall with a fan-assisted cooling system and a non-ventilated wall.
The study revealed that the temperature of photovoltaic (PV) modules and the overall system performance depend on weather conditions, surface dust accumulation, and the operation of fans. Fans enhance electrical efficiency by cooling the modules, whereas thermal and overall efficiency are higher under dust-free conditions and without fan operation. Dust accumulation reduces solar radiation, decreasing system efficiency, with thermal performance having a decisive impact on the overall energy output.
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