Optimization of controllable factors for enhancing the efficiency of concentrated photovoltaic-thermal collectors (CPVT): A numerical study and modeling approach under semi humid climatic conditions.

Abstract

Our study focuses on the optimization of Concentrated Photovoltaic/Thermal (CPVT) systems to enhance their efficiency, reliability, and durability. The objective is to make CPVT systems more cost-effective and environmentally friendly, thereby promoting renewable energy production. The experimental input data utilized in this research study represents a typical area in Algeria characterized by semi-humid climatic conditions. Our investigation specifically explores the influence of three key parameters: the length of fresnel mirrors, the angle between the PV panel and the mirrors, and the thickness of the glass cover. A CPVT model is designed using the finite element method in COMSOL Multiphysics, and statistical analysis techniques such as Design of Experiments (DOEand Analysis of Variance (ANOVA) are employed to identify the most significant factors. The response surface methodology (RSM) implemented in Minitab software facilitates the optimization process to determine the optimal values for each parameter. Our results reveal the substantial impact of the selected parameters on CPVT system performance. By adjusting the factors to their optimal values, a maximum electrical efficiency of 13.14% and thermal efficiency of 82.72% are achieved. This study contributes new insights to the literature by addressing the lack of research on these specific parameters and provides a foundation for the design and optimization of CPVT systems. It highlights the importance of considering these factors in enhancing the overall performance of CPVT technology, paving the way for more efficient and sustainable energy solutions.