A new passive PV heatsink design to reduce efficiency losses: A computational and experimental evaluation

Hernandez-Perez, J.G.; Carrillo, J.G.; Bassam, A.; Flota-Bañuelos, Manuel; Patiño-Lopez, Luis D.

doi:10.1016/j.renene.2019.09.088

Cited by 80 publications

(40 citation statements)

References 34 publications

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“…Table 3. The previous study of the PVT system References Design of absorber to cooling PV Finding Hernandez et al [29] Segmented fins Electrical efficiency enhancement of 4% Zhao et al [30] Small cell with a glass Electrical efficiency of 12.4% Selimefendigil et al [31] Two fins thicknesses Power enhancement reached 7.26 Mojumder et al [32] Unglazed PVTC and rectangular fins attached to thin flat sheet…”

Section: Resultsmentioning

confidence: 99%

Electrical Characteristic Analysis of Photovoltaic Thermal With And Without ∇-Groove Absorber

Hadisaputra¹,

Zohri²,

Fudholi³

2021

IJEEI

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The photovoltaic thermal (PVT) system is an up-and-coming renewable energy technology that simultaneously produces thermal and electrical energy. The objective of this paper is to improve the electrical efficiency of the photovoltaic thermal system with and without ∇-groove absorber. This study is an experimental investigation under an indoor solar simulator at The National University of Malaysia. The electrical characteristic of the PVT system is characterized by the scheming current (A), voltage (V), power (W) curves. The solar intensity and mass flow rate affected the electrical characteristic. The increase of produced power and electrical efficiency is caused by increasing the solar intensity and mass flow rate. The comparison between ∇-groove absorber and without ∇-groove absorber shows that the use of ∇-absorber can increase electrical efficiency.

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Section: Resultsmentioning

confidence: 99%

Electrical Characteristic Analysis of Photovoltaic Thermal With And Without ∇-Groove Absorber

Hadisaputra¹,

Zohri²,

Fudholi³

2021

IJEEI

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“…The PCMs are extra smart because they do not require further mechanical power. Presently, the succeeding PCMs have been studied, such as: P.C.M [29-36], passive laminar flow heat sink [37][38][39][40][41][42] and radiant cooling [43][44][45][46].Understanding the advanced cooling techniques mentioned above is critical to improving electrical performance efficiency. Numerous researchers have showed in-depth analyses of different cooling methods attentions only on passive cooling approaches [47,48].…”

Section: Introductionmentioning

confidence: 99%

Temperature on PV Module Performance and its Latest Mitigation Techniques: A Review

2021

IJETER

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Photovoltaic modules (PVM) output power is sensitive to fluctuations in temperature and the concentration of solar insolation during sustained disclosure. The 20% of solar insolation will be converted into useful electrical energy, while the rest will be dissipated in the form of heat, which in rotate will increase the operating heat of the PVM and it negatively affects the open circuit voltage (Voc), resulting in a decrease in the power alteration productivity and an irreversible rate of cell deprivation. Appropriate cooling techniques are therefore crucial to preserve the operating temperature of the module under standard test conditions (STC). There are two different methods for cooling PVMs, namely active and passive these methods are subdivided into different techniques which are discussed one by one in literature review; in this paper the techniques for cooling PVMs are comprehensively reviewed

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“…Under real operating conditions, the conventional heat sink may not be suitable as the nature of airflow is multidimensional. Hence Hernandez‐Perez et al 25 have designed a series of 3D models of heatsinks, tested the best performance model, and suggested the use of segmented aluminum sheet as it gave 10°C drop in PV surface temperature due to better airflow under high irradiance condition. In the case of building‐integrated PV, keeping a narrow gap can enhance PV efficiency as studied by Hamed et al 26 A temperature drop of 5°C to 10°C (3%‐4% rise in electrical output) was observed when the spacing maintained was 300 mm.…”

Section: Introductionmentioning

confidence: 99%

Quantifying the performance advantage of using passive solar air heater with chimney for photovoltaic module cooling

Arunachala

2020

Int J Energy Res

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Summary The foreseeable growth of photovoltaic (PV) systems highlights the prominence of improving its efficiency. The performance of PV module deteriorates as a major part of irradiance is converted to heat. Amongst several PV thermal management techniques, passive air cooling is gaining importance due to its self‐sustained nature. In the present experimental study, the performance of conventional solar air heater is enhanced by incorporating chimney. Further, by placing the PV module in the airflow path, its performance is improved compared to an identical module kept open to ambient. During testing, a maximum system efficiency of 35% was observed as air heater contributes to the maximum thermal efficiency of 25%. Further, due to better airflow over the PV module rear surface, a 13% reduction in surface temperature was observed compared to the outer module, which gave a 6% rise in power output. In such a combi system, the working of both PV and air heater complements the advantage to each other. Hence, the total efficiency of the air heater and PV module as two separate entities is always less than the system efficiency of the combi system.

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A new passive PV heatsink design to reduce efficiency losses: A computational and experimental evaluation

Cited by 80 publications

References 34 publications

Electrical Characteristic Analysis of Photovoltaic Thermal With And Without ∇-Groove Absorber

Electrical Characteristic Analysis of Photovoltaic Thermal With And Without ∇-Groove Absorber

Temperature on PV Module Performance and its Latest Mitigation Techniques: A Review

Quantifying the performance advantage of using passive solar air heater with chimney for photovoltaic module cooling

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