Numerical study of a covered Photovoltaic-Thermal Collector (PVT) enhancement using nanofluids

Hissouf, Mohamed; Feddaoui, M’barek; Najim, Monssif; Charef, Adil

doi:10.1016/j.solener.2020.01.083

Cited by 135 publications

(31 citation statements)

References 39 publications

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“…Some studies focus on the working fluid, which normally is either air (less efficient) or water [12]. But it can be changed to achieve better thermal efficiency using various nanofluids [7,[13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A Simulation Study on Temperature Uniformity of Photovoltaic Thermal Using Computational Fluid Dynamics

Rosli

Latif

Nawam

et al. 2021

ARFMTS

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The temperature distribution across the photovoltaic (PV) module in most cases is not uniform, leading to regions of hotspots. The cells in these regions perform less efficiently, leading to an overall lower PV module efficiency. They can also be permanently damaged due to high thermal stresses. To enable the high-efficiency operation and a longer lifetime of the PV module, the temperatures must not fluctuate wildly across the PV module. In this study, a custom absorber is designed based on literature to provide a more even temperature distribution across the PV module. This design is two standard sets of spiral absorbers connected. This design is relatively less complicated for this reason and it allows room for adjusting the pipe spacing without much complication. The absorber design is tested via computational fluid dynamics (CFD) simulation using ANSYS Fluent 19.2, and the simulation model is validated by an experimental study with the highest percentage error of 9.44%. The custom and the serpentine absorber utilized in the experiment are simulated under the same operating conditions having water as the working fluid. The custom absorber design is found to have a more uniform temperature distribution on more areas of the PV module as compared to the absorber design utilized in the experiment, which leads to a lower average surface temperature of the PV module. This results in an increase in thermal and electrical efficiency of the PV module by 3.21% and 0.65%, respectively.

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Section: Introductionmentioning

confidence: 99%

A Simulation Study on Temperature Uniformity of Photovoltaic Thermal Using Computational Fluid Dynamics

Rosli

Latif

Nawam

et al. 2021

ARFMTS

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“…By combining PV panel with a thermal collector to form a hybrid photovoltaic-thermal collector, the cells temperature can be reduced by extracting heat through a heat transfer fluid. Therefore, the efficiency of hybrid PVT collector is increased [9]. The main objective of PV/T collectors is to use the large part of unused solar energy in conventional photovoltaic (PV) modules for thermal applications [10].…”

Section: 𝐹𝐹𝐹𝐹𝑔𝑔𝐹𝐹 𝐹𝐹𝑔𝑔𝐹𝐹𝑡𝑡𝐹𝐹𝑔𝑔 =mentioning

confidence: 99%

Annual performance analysis of the PV/T system for the heat demand of a low-energy single-family building

2021

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“…For example, Cappelletti mentions that mono-crystalline PV cells have higher efficiency compared to poly-crystalline PV cells [18]. In terms of the working fluid, air is considered to be less efficient than water which itself is less efficient compared to various nanofluids [5,[19][20][21][22][23][24][25]. In terms of absorber configurations, the most common absorbers are serpentine, parallel, spiral, cross-fined absorbers amongst which, the spiral absorber is found to be the most efficient [2,[26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Variation in Mass Flow Rate and Solar Irradiance on Temperature Uniformity and Thermal Performance of Photovoltaic Thermal: A Simulated CFD Study

Rosli

Nawam

Latif

et al. 2022

ARFMTS

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Although, the effect of mass flow rate and solar irradiance variation is present in literature, it is still of significant interest to investigate the extent of the effect especially when utilizing a custom absorber design. In this paper, the effect of changing the mass flow rate and solar irradiance on the performance and temperature uniformity of a PVT using a custom spiral absorber design is simulated using ANSYS CFD software. By increasing the mass flow rate, the temperature uniformity and the performance parameters such as the average PV temperature, water outlet temperature, thermal and electrical efficiency all increase. By increasing the irradiance level, performance and temperature uniformity drop albeit at a smaller degree compared to change observed in mass flow rate variation. Amongst the tested range, the optimum mass flow rate and solar irradiance levels for best performance are 40 kg/h and 800 – 1000 , respectively.

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Numerical study of a covered Photovoltaic-Thermal Collector (PVT) enhancement using nanofluids

Cited by 135 publications

References 39 publications

A Simulation Study on Temperature Uniformity of Photovoltaic Thermal Using Computational Fluid Dynamics

A Simulation Study on Temperature Uniformity of Photovoltaic Thermal Using Computational Fluid Dynamics

Annual performance analysis of the PV/T system for the heat demand of a low-energy single-family building

The Effect of Variation in Mass Flow Rate and Solar Irradiance on Temperature Uniformity and Thermal Performance of Photovoltaic Thermal: A Simulated CFD Study

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