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Thermal evaluation of photovoltaic panels combined pulsating heat pipe with phase change materials: Numerical study and experimental validation
Graphical abstract Display Omitted
Highlights Numerical heat transfer models of PV, PV/PCM and PV/PCM/PHP are established and experimentally validated during diurnal cycle. Structural parameters of pulsating heat pipes are evaluated for heat transfer process between evaporation and condensation section. The improved numerical method for PV combined with PCM and PHP cooling modules is established for diurnal cycle. PV, PV/PCM and PV/PCM/PHP temperature distributions and power generation performance during diurnal cycle are analyzed for different climate zones. When applying PV/PCM/PHP in a cold area (Shenyang), its temperature control performance is the best.
Abstract The surface temperature of photovoltaic (PV) modules is a key factor affecting the efficiency of photoelectric conversion. Passive cooling technology plays an important role in PV cooling, and coupling improvements to different heat dissipation methods can improve photovoltaic heat transfer efficiency and service life. This paper proposes an improved method for numerical calculations of long-duration heat transfer processes, targeting a combination of various cooling methods. The numerical heat transfer model is established for the PV panel coupled with the phase change material (PCM) and pulsating heat pipe (PHP) cooling modules. The temperature distribution of the PV panel is experimentally verified in the long-term heat exchange process. The simulation study is performed to investigate the influence of geometric structure and physical property variations of PCM and PHP on the heat transfer performance of PV panels. Evaluation of coupled cooling modules is conducted for temperature control of PV under different meteorological conditions. In the experimental validation, the PCM of the PCM cooling module is made by choosing paraffin and tetradecane-doped graphite, and the PHP cooling module is designed according to the parameters of the optimal case from numerical results. In the climate applicability analysis of the PV/PCM/PHP coupling module, the established heat transfer model is used for the study of temperature control effects during day-night cycles and the calculation of photoelectric conversion efficiency, and the applicability to different climatic regions is evaluated.
Thermal evaluation of photovoltaic panels combined pulsating heat pipe with phase change materials: Numerical study and experimental validation
Graphical abstract Display Omitted
Highlights Numerical heat transfer models of PV, PV/PCM and PV/PCM/PHP are established and experimentally validated during diurnal cycle. Structural parameters of pulsating heat pipes are evaluated for heat transfer process between evaporation and condensation section. The improved numerical method for PV combined with PCM and PHP cooling modules is established for diurnal cycle. PV, PV/PCM and PV/PCM/PHP temperature distributions and power generation performance during diurnal cycle are analyzed for different climate zones. When applying PV/PCM/PHP in a cold area (Shenyang), its temperature control performance is the best.
Abstract The surface temperature of photovoltaic (PV) modules is a key factor affecting the efficiency of photoelectric conversion. Passive cooling technology plays an important role in PV cooling, and coupling improvements to different heat dissipation methods can improve photovoltaic heat transfer efficiency and service life. This paper proposes an improved method for numerical calculations of long-duration heat transfer processes, targeting a combination of various cooling methods. The numerical heat transfer model is established for the PV panel coupled with the phase change material (PCM) and pulsating heat pipe (PHP) cooling modules. The temperature distribution of the PV panel is experimentally verified in the long-term heat exchange process. The simulation study is performed to investigate the influence of geometric structure and physical property variations of PCM and PHP on the heat transfer performance of PV panels. Evaluation of coupled cooling modules is conducted for temperature control of PV under different meteorological conditions. In the experimental validation, the PCM of the PCM cooling module is made by choosing paraffin and tetradecane-doped graphite, and the PHP cooling module is designed according to the parameters of the optimal case from numerical results. In the climate applicability analysis of the PV/PCM/PHP coupling module, the established heat transfer model is used for the study of temperature control effects during day-night cycles and the calculation of photoelectric conversion efficiency, and the applicability to different climatic regions is evaluated.
Thermal evaluation of photovoltaic panels combined pulsating heat pipe with phase change materials: Numerical study and experimental validation
Yang, Chen (author) / Tao, Qiuhua (author) / Zheng, Jianwen (author) / Qiu, Longhui (author) / Chen, Yi (author) / Yan, Huaxia (author) / Min, Yunran (author) / Fan, Yiyan (author)
Energy and Buildings ; 303
2023-11-26
Article (Journal)
Electronic Resource
English
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