Physics and Astronomy, Mechanics of Materials, Materials Science, Condensed Matter Physics
14
Scopus Publications
Scopus Publications
Thermal Regulation of PV Panels via Bio-Based Phase Change Materials Fatima Amallal, Mohammed Gounzari, Youssef Belkassmi, Abdelhadi Kotri, Abdellah Elbouzidi, et al. Bio Web of Conferences, 2026 The degradation of photovoltaic performance due high operating temperature remains a major challenge in PV technology. The integration of phase change materials offers an effective solution by absorbing the excess heat through latent heat storage during PV operation. This study numerically investigates the impact of incorporating different PCM on PV temperature regulation and electrical efficiency, under varying solar irradiance and PCM thicknesses. A transient energy balance model was developed and solved using the finite difference method FDM. Results showed the PCM integration slows PV temperature rise and enhances electrical efficiency. Among the tested materials, the bio-based PCM BWCO demonstrated effective thermal performance even at low thicknesses.
Performance Evaluation of Hybrid Photovoltaic-Phase Change Materials Under Ouarzazate Weather Conditions F. Amallal, M. Gounzari, Y. Belkassmi, A. Kotri, M. Sahal Mathematical Modeling and Computing, 2026 This study investigates the effectiveness of photovoltaic (PV)-phase change material (PCM) hybrid systems (HPV-PCM) in optimizing temperature control and electrical performance. A mathematical model based on energy balance equations was developed and numerically solved using the finite difference method (FDM), and simulations were carried out under the climatic conditions of Ouarzazate. The results of this study demonstrate that the incorporation of PCM with the PV panel effectively reduced its temperature by 10∘C and enhanced its electrical efficiency by 0.7% while increasing power output compared to a standalone PV panel.
Optimizing photovoltaic system efficiency with the integration of thermoelectric generators and nano-phase change material Fatima Amallal, Mohammed Gounzari, Youssef Belkassmi, Abdelhadi Kotri, Mohamed Bouzelmad, et al. International Journal of Low Carbon Technologies, 2025 Combining photovoltaic (PV) with thermoelectric generators (TEGs) and phase change materials (PCMs) has attracted significant interest for enhancing electrical efficiency and managing PV modules’ temperature. This study employs numerical simulations to evaluate the performance of a hybrid PV–NPCM–TEG system, with a particular focus on the effect of nano-PCM (NPCM). The analysis examines efficiency, thermal regulation, and power generation under varying environmental conditions, including solar radiation, ambient temperature, and wind speed. Results indicate that the incorporation of NPCM (Al2O3 + RT35) enhanced temperature regulation and increased efficiency by 0.2% compared to the PV–PCM–TEG hybrid system, with nanoparticle (NP) loading enhancing TEG efficiency. Moreover, higher wind speeds and greater NP loading further improved the overall performance of the PV–NPCM–TEG system.
Numerical Analysis of the Phase Change Material Impact on the Functionality of a Hybrid Photovoltaic Thermal Solar System in Transient Conditions Mohamed Bouzelmad, Youssef Belkassmi, A. S. Abdelrazik, Abdelhadi Kotri, Mohamed Gounzari, et al. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2023 Combining phase change material with a hybrid photovoltaic thermal system can be a reasonable solution for excessive temperature distributions and inadequate heat control in traditional photovoltaic thermal modules. This work proposes a mathematical model to assess the transient processes of a hybrid photovoltaic thermal solar system with phase change materials in comparison to a conventional photovoltaic panel. The studied hybrid module is composed of (the cover glass, photovoltaic plate, absorber plate, phase transition materials layer, and water in the tubing). The employed system parameters were selected on an energy-saving basis in the different system layers. The differential equations determining energy exchange between the different parts in both systems were numerically solved using the Finite Difference Method applied to MATLAB software. The transient model's validity is first tested by comparing the prediction temperatures of each layer of the photovoltaic thermal system with those numerical and experimental studies in literature in which the maximum discrepancy is less than 1.5°C. Then, the results of the transient model are investigated in real outdoor weather conditions using meteorological data. The results illustrated that the hybrid module diminishes the temperature of the photovoltaic layer by roughly 21.9°C compared to the standalone photovoltaic panel, leading to a 1.95 % enhancement in electrical performance.
