A novel heat sink for cooling concentrator photovoltaic system using PCM-porous system

Duan, Juan

doi:10.1016/j.applthermaleng.2020.116522

Cited by 82 publications

(22 citation statements)

References 41 publications

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“…Presence of metallic fibers in the PCM layer having 50 mm thickness assisted in dropping PV temperature by a maximum of 21 °C, while their porosity had little influence on performance. Duan (2021) numerically investigated the effectiveness of PCM incorporated with metal foam porous for passive CPV cooling at CR of 20. Also, the influence of varying porosity and height of metal foam was considered.…”

Section: Composite Pcmmentioning

confidence: 99%

Review of cooling techniques used to enhance the efficiency of photovoltaic power systems

Sharaf

Yousef

Huzayyin

2022

Environ Sci Pollut Res

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Photovoltaic (PV) panels are one of the most important solar energy sources used to convert the sun’s radiation falling on them into electrical power directly. Many factors affect the functioning of photovoltaic panels, including external factors and internal factors. External factors such as wind speed, incident radiation rate, ambient temperature, and dust accumulation on the PV cannot be controlled. The internal factors can be controlled, such as PV surface temperature. Some of the radiation falling on the surface of the PV cell turns into electricity, while the remainder of incident radiation is absorbed inside the PV cell. This, in turn, elevates its surface temperature. Undesirably, the higher panel temperature, the lower conversion performance, and lesser reliability over the long term occur. Hence, many cooling systems have been designed and investigated, aiming to effectively avoid the excessive temperature rise and enhance their efficiency. Many cooling methods are used to cool solar cells, such as passive cooling, active cooling, cooling with phase change materials (PCMs), and cooling with PCM with other additives such as nanoparticles or porous metal. In this work, the common methods utilized for cooling PV panels are reviewed and analyzed, focusing on the last methods, and summarizing all the researches that dealt with cooling PV solar cells with PCM and porous structures.

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Section: Composite Pcmmentioning

confidence: 99%

Review of cooling techniques used to enhance the efficiency of photovoltaic power systems

Sharaf

Yousef

Huzayyin

2022

Environ Sci Pollut Res

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“…113,114 The pore density and porosity of metal foams have a significant effect on PCMs systems. 115 Yang et al 116 impregnated PCMs into metal foams to prepare the SSPCMs, and studied the influence of position and porosity of metal foams on thermal storage performance of PCMs. It was found that heat conductivity of obtained SSPCMs was significantly increased than systems without metal foams when the porosity is 0.94 and the pore density is 15 pores per inch (PPI).…”

Section: Metal-based Porous Materialsmentioning

confidence: 99%

Construction strategies and thermal energy storage applications of shape‐stabilized phase change materials

Yan

Wang

et al. 2021

J of Applied Polymer Sci

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Phase change materials (PCMs) are usually used in latent thermal energy storage systems to address the mismatch between heat energy supply and demand, due to their high energy storage density, high-latent heat, and almost constant temperature during phase change process. However, the low-thermal conductivity of PCMs and severe leakage during phase change limit their practical applications. Thus, extensive efforts have been devoted to constructing shapestabilized PCMs (SSPCMs). In this review, recent advances of the construction strategies and thermal energy storage applications of SSPCMs are summarized. Especially, the microencapsulated PCMs, SSPCMs based on porous scaffolds, as well as their potential applications are highlighted. Finally, the future perspectives and remaining challenges in this research field are prospected.

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“…Different technologies to improve the efficiency of photovoltaic panels by passive cooling, using air, are studied in the literature [8,13,[32][33][34][35][36][37][38][39]. Detailed studies on air cooling of photovoltaic panels are carried out in the following works [11,40].…”

Section: Related Researchmentioning

confidence: 99%

Enhancement of PV Panel Power Production by Passive Cooling Using Heat Sinks with Perforated Fins

et al. 2021

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This paper presents a numerical model regarding the passive cooling of PV panels through perforated and non-perforated heat sinks. A typical PV panel was studied in a fixed position, tilted at 45 degrees from the horizontal with the wind direction towards its backside. A challenging approach was used in order to calibrate the base case of the numerical model according to the NOCT conditions. Further validation of the accuracy of the numerical simulation consisted of a comparison between the results obtained for the base case, or heat sink, with horizontal non-perforated fins and the experiments presented in the literature. Six types of heat sink attached to the backside of the PV panel were numerically studied. The analyzed configurations focused on heat sinks with both perforated and non-perforated fins that were distributed horizontally and vertically. The CFD simulation was also conducted by modeling the air volume around the PV panel in real wind conditions. The main output parameters were the average temperature and the convective heat transfer coefficient on the front and back of the PV panel. The most important effect of cooling was achieved in low wind conditions and high levels of solar radiation. For vair = 1 m/s, G = 1000 W/m2 and ambient temperature tair = 35 °C, the percentage of maximum power production achieved 83.33% for the base case, while in the best cooling scenario it reached 88.74%, assuring a rise in the power production of 6.49%.

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A novel heat sink for cooling concentrator photovoltaic system using PCM-porous system

Cited by 82 publications

References 41 publications

Review of cooling techniques used to enhance the efficiency of photovoltaic power systems

Review of cooling techniques used to enhance the efficiency of photovoltaic power systems

Construction strategies and thermal energy storage applications of shape‐stabilized phase change materials

Enhancement of PV Panel Power Production by Passive Cooling Using Heat Sinks with Perforated Fins

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