Experimental analysis of comparative temperature and exergy of crystalline (c-Si) and amorphous (a-Si) solar PV module using water cooling method

Kumar, Prabhat; Гупта, Прачи; Sudhakar, K.; Singh, Ajay Kumar

doi:10.9790/1684-1305032126

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Water cooling method using by Kumar et al [3] to increase PV module performance due to an evaporation of water and self-cleaning effect, and to minimize the amount of water and electrical energy needed for cooling of the solar panels. They used a mono-crystalline and amorphous silicon PV module as a solar absorber.…”

Section: Cooling Solar Cellsmentioning

confidence: 99%

Cooling solar cells using ZnO nanoparticles as a down-shifter

et al. 2020

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Down-shifting material is used to enhance the overall efficiency of the photovoltaic solar cell by reducing the energy of incident photons and then cooling down the temperature of the photovoltaic solar cells. This experimental work focused on studying the effect of ZnO nanoparticles as a downshifting material on reducing the temperature of the photovoltaic cells. Readings of temperature and voltagewhich were collected on different days in summer July showed a good effect of ZnO nanoparticles on solar cell temperature. Where there was a significant decrease in cell temperature of up to 4.5 °C, in addition an increase in voltage of about 1.5 V.

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Section: Cooling Solar Cellsmentioning

confidence: 99%

Cooling solar cells using ZnO nanoparticles as a down-shifter

et al. 2020

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“…One of the main obstacles that face the operation of the Fresnel system is overheating due to excessive solar radiation and high ambient temperatures which affect the panel's efficiency, output energy [1][2][3][4] and can even burn the PV panel [5][6]. One of the important parameters that affect the output of the Fresnel system is the concentration ratio.…”

Section: Introduction 11 Overheating Effect On the Efficiency Of Pv mentioning

confidence: 99%

Feasibility of Cooling a Photovoltaic Fresnel System by Water Spraying

Shenouda

Abd-Elhady

Kandil

2020

ARFMTS

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The Fresnel system can achieve high electrical energy yield compared to the traditional photovoltaic (PV) panel techniques due to the concentration of solar energy. However, this huge energy might cause overheating of the PV panel. The objective of this research is to mathematically model a linear Fresnel system that is cooled by either spraying the PV panel by tap water or chilled water, in order to determine the maximum possible concentration ratio, which is called the critical concentration ratio. Then, the model is further used to study the effect of cooling on the PV panel in real life operating conditions in two cities; the first one is a hot city which is Cairo, Egypt, and the other one is a cold city which is Stuttgart, Germany. The objective is to find out the Critical concentration ratio (Cr) at which the maximum energy output from the system can occur as a function of the operating conditions. The results of this study show that cooling of the PV panels using chilled water system is not feasible. Therefore, in order to improve the feasibility, a low energy cooling system should be adopted. Such system may include spraying tap water on the PV panels, recollecting the water and cooling it naturally underground and finally spraying it again on the panels. The maximum output energy has increased by approximately 75%, compared to the nocooling case, due to water spraying, which indicates the feasibility of water spraying in Fresnel systems.

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