Efficiency Gains of Photovoltaic System Using Latent Heat Thermal Energy Storage

Tan, Lippong; Date, Abhijit; Fernandes, Gabriel; Singh, Baljit; Ganguly, Shreemoyee

doi:10.1016/j.egypro.2017.03.110

Cited by 79 publications

(22 citation statements)

References 16 publications

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“…They found out that the energy from these PV systems increased by 7% and 10.2% for the fins and backwater cooling, respectively. Tan et al [14] assessed the electrical and thermal performance of a PV system through a comparison of naturally cooled equivalent and latent heat-cooled PV panel. Their study found out that the PV panel with a fin cooling system had a 15 ℃ reduction in temperature relative to the naturally cooled panel.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Effect of a Combination of Active and Passive Cooling Mechanism on the Thermal Characteristics and Efficiency of Solar PV Module

et al. 2021

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A photovoltaic (PV) module’s electrical efficiency depends on the operating temperature of the cell. Electrical efficiency reduces with increasing PV module temperature which is one of the drawbacks of this technology. This is due to the negative temperature coefficient of a PV module which decreases its voltage significantly while the current increases slightly. This study combines both active and passive cooling mechanisms to improve the electrical output of a PV module. A heat sink made up of aluminum fins and an ultrasonic humidifier were used to cool the panel. The ultrasonic humidifier was used to generate a humid environment at the rear side of the PV module. The cooling process in the study was able to reduce the temperature of the panel averagely by 14.61 ℃. This reduction led to a 6.8% improvement in the electrical efficiency of the module. The average power of 12.23 W was recorded for the cooled panel against 10.87 W for the referenced module. In terms of water consumption, a total of 1.5 L was approximately consumed during the whole experimental process due to evaporation. In effect, the proposed cooling approach was demonstrated as effective.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Effect of a Combination of Active and Passive Cooling Mechanism on the Thermal Characteristics and Efficiency of Solar PV Module

et al. 2021

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“…Tan et al [50] evaluated the influence of different inner configurations of the metallic container (different number of fins) to be filled with the commercial PCM RT 27 (T m = 27 ºC) and to be coupled to the rear side of the PV panel, in order to passively achieve cooling of the PV cells.…”

Section: Literature Reviewmentioning

confidence: 99%

Can movable PCM-filled TES units be used to improve the performance of PV panels? Overview and experimental case-study

Soares

Costa

Gaspar

et al. 2020

Energy and Buildings

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This paper provides an overview on how phase change materials (PCMs) can be used for the thermal regulation of photovoltaic (PV) devices, and describes an experimental apparatus to assess whether the performance of 250 W STC-rated commercial polycrystalline silicon PV panels can be improved by placing movable thermal energy storage (TES) units filled with the free-form PCM RT 22 HC on the panels' back. The outdoor apparatus is located at Coimbra, Portugal. Three identical PV panels were separately installed and individually monitored: one panel was taken as reference; the other two were considered together with a TES unit each with horizontally and vertically oriented cavities, PV/PCM 1 and PV/PCM 2 systems, respectively. The time evolutions of the temperature of the PV panels were compared with each other to analyse the possible thermal regulation potential of the TES units. The time evolution of the power output was also assessed to compare the efficiency of the different systems. Finally, the energy produced per day by each system was evaluated. The results showed that the PV operating temperature has increased ca.

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“…Active cooling, as opposed to passive cooling, is dependent on an exterior source to maintain the uid stream and improve heat transmission. Generally, it is more powerful than a passive scheme, but it is less cost-competent (Tan et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Efficiency Enhancement of Photovoltaic Module Using An Aluminum Foam Matrix Filled With Phase Change Material (PCM) Under Hot Climate Conditions

Sharaf

Yousef

Huzayyin

2021

Preprint

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In the present work, a passive cooling strategy combining an aluminium foam matrix (AFM) with PCM was employed to regulate the temperature of a photovoltaic (PV) system The comparison between three PV modules was established ,the first one was conventional without any changes ,the second one was PV combined with PCM (PV-PCM) and the last one was PV combined with modified PCM which contain an aluminum foam matrix embedded in it (PV-PCM/AFM).Outdoor experiments were carried out in the hot weather of Benha, Egypt, which is situated at latitude 30.466° North and longitude 31.185° East. A comparison of the three PV designs was given and analysed, based on PV surface temperature, PCM temperature, open-circuit voltage, output power generated, and electrical efficiency. It was observed that using composite PCM resulted in better heat absorption from the PV module and better temperature distribution inside the PCM enclosure. Furthermore, the results indicated that against the unmodified PV system, the average cell’s temperature in the PV-PCM system was dropped by 13.3% and its electrical power was enhanced by 9%. Meanwhile, the average cell temperature in the PV-PCM/AFM configuration was reduced by 21.6% while the enhancement of the electrical power was at 14%. Furthermore, the findings demonstrated that, as compared to unmodified PCM, AFM impregnation accelerated the melting of modified PCM by roughly 37%.

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Efficiency Gains of Photovoltaic System Using Latent Heat Thermal Energy Storage

Cited by 79 publications

References 16 publications

Experimental Investigation of the Effect of a Combination of Active and Passive Cooling Mechanism on the Thermal Characteristics and Efficiency of Solar PV Module

Experimental Investigation of the Effect of a Combination of Active and Passive Cooling Mechanism on the Thermal Characteristics and Efficiency of Solar PV Module

Can movable PCM-filled TES units be used to improve the performance of PV panels? Overview and experimental case-study

Efficiency Enhancement of Photovoltaic Module Using An Aluminum Foam Matrix Filled With Phase Change Material (PCM) Under Hot Climate Conditions

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