Numerical analysis of photovoltaic-thermal collector using nanofluid as a coolant

Jia, Yuting; Ran, Fengming; Zhu, Chen; Fang, Guiyin

doi:10.1016/j.solener.2019.12.069

Cited by 96 publications

(32 citation statements)

References 35 publications

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“…Figure.4shows the nanofluid samples after finishing the nanofluid preparation while sedimentation was not observed when experiments were conducted. Table 3 shows thermo-physical properties of nanofluids and water, which were taken from the literature [21]…”

Section: Preparation Of Nanofluidsmentioning

confidence: 99%

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

ALSHIKHI

Kayfeci

2022

Therm sci

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It is a common observation that the photovoltaic (PV) panelshows a compromised performance when its temperature rises. To handle the performance reduction, most PV panels are equipped with a thermal absorber for removing the solar cells? excessive heatwith the help of a heat transfer fluid. The mentioned thermal absorber system is termed as PV thermal or simply PV/T. This study aims to experimentally investigate the effectsof a graphene nano-platelets (GNP) nanofluid, distilled water, and hybrid nanofluid (HyNF)as transfer fluids in PV/Tcollectors. A hybrid nanofluid comprises aluminum oxide (Al2O3) and GNP. An outdoor experimental setup was installed and tested under the climatic conditions in Karab?k (Turkey) to measure the inlet as well as outlet PV/Tfluid temperatures, ambient temperature with solar radiation, and surface temperatures of both PV/T collector and the PV panel. The mass percentage of the coolant fluids was 0.5% (by weight) and their flow rate was 0.5L/m. Resultsshow that the (GNP)nanofluid is the most effective fluid because it showed superior thermal efficiency among all the tested fluids. Adding a thermal unit to the PV/Tunit increased the overall energy efficiency by 48.4%, 52%, and 56.1% using distilled water, hybrid nanofluid, and graphene nanofluid, respectively.

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Section: Preparation Of Nanofluidsmentioning

confidence: 99%

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

ALSHIKHI

Kayfeci

2022

Therm sci

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“…They also reported that the thermal power of collector with 0.03 kg/s flowrate is 12.11 % more than 0.0005 kg/s flowrate [28]. nanofluids containing multiwalled carbon nanotubes and graphene nanoplatelets and reported that the energy and exergy efficiency of collector with graphene nanoplatelets is higher which the former is 63.1% and the latter is 20.6% [32].…”

Section: -Introductionmentioning

confidence: 95%

The Impact of Tilt Angle and Flowrate on Performance of Nanofluid Based Photovoltaic/ Thermal (PV/T) Solar Collectors

Naderi

Gazori²,

Bozegi³

2020

Preprint

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Background Today, by the arrival of new sustainable energy technology, the provision of energy for the global population has turned into a significant issue for societies. Meanwhile, photovoltaic/thermal (PV/T) solar collectors, as one of the most advanced types to produce electricity and heat simultaneously, can be applied with nanofluid as the working fluid. Methods In this research, PVP coated silver nanofluid was prepared in three volume concentrations being 250, 500 and 1000 ppm by two-step method to determine the stability and thermal conductivity, experimentally. Then, the performance of PV/T solar collector is analyzed by TRNSYS software to study electrical and thermal efficiency and also output electrical and thermal energy in different months, flowrates (25, 50, 75, 100, 150 and 200 l/h) and nanofluid’s concentration. Results Based on the results, the optimum flowrate and nanofluid’s concentration are obtained 50 l/h and 1000 ppm PVP coated silver nanofluid. At last, the effect of tilt angle on the output thermal and electrical energy is determined. According to the results, by changing tilt angle in different months, the performance of PV/T solar collector can be ameliorated. Conclusion This paper can be heeded as a novel approach to overcome the lack of solar radiation in winters by improving the performance of PV/T solar collectors.

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“…The increase in the area ratio, above 7, has no significant influence on PV performance. Jia et al investigated the effects of nanofluid types and VF of nanoparticle on the T PVmodule , η El , electrical, and thermal powers. A mathematical model of PVT collector was studied with Al 2 O 3 ‐water and TiO 2 ‐water nanofluids.…”

Section: Literature Review On the Cooling Of Pv Module With Nanofluidsmentioning

confidence: 99%

Performance enhancement of photovoltaic modules by nanofluid cooling: A comprehensive review

2020

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Summary Only 15‐20% of solar radiation incident on the photovoltaic (PV) cells is utilized which further reduces due to the rise in the temperature of the PV module and it also degrades the lifespan of the PV module. Therefore, numerous attempts were made to reduce this rising temperature of the PV module and different cooling techniques were employed. Nanofluid cooling is one of the potential cooling techniques for lowering the temperature of the PV module and augmenting the heat transfer by increasing the thermal conductivity of the nanofluid relative to the base fluid (BF). The experimental and numerical studies related to the cooling of PV cells with nanofluids have been reviewed. It was found that the heat transfer from the back of the PV module is enhanced with the augmentation in the concentration of nanoparticle in BF; however, some studies also demonstrate that the enhancement in the heat transfer also depends upon other factors such as the geometry at the rear of the PV module, nanoparticle material, nanoparticle size, BF, ambient conditions, etc. This review article also demonstrates the various issues with nanofluids such as instability, technological difficulties, high system costs, and the impossibility of finding a viable operational design which creates a barrier in the commercialization of the nanofluid cooling technique for PV modules.

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Numerical analysis of photovoltaic-thermal collector using nanofluid as a coolant

Cited by 96 publications

References 35 publications

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

Experimental investigation of using graphene nanoplatelets and hybrid nanofluid as coolant in photovoltaic thermal systems

The Impact of Tilt Angle and Flowrate on Performance of Nanofluid Based Photovoltaic/ Thermal (PV/T) Solar Collectors

Performance enhancement of photovoltaic modules by nanofluid cooling: A comprehensive review

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