Thermal performance of a nanofluid-based flat plate solar collector: A transient numerical study

Genç, Alper Mete; Ezan, Mehmet Akif; Turgut, Alpaslan

doi:10.1016/j.applthermaleng.2017.10.166

Cited by 101 publications

(21 citation statements)

References 33 publications

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“…The high temperature of cells causes a decrease in their efficiency, which led researchers tried to improve the performance of solar cells by cooling the solar cell and using the excess heat for water heating. In this new design, the solar cell is fixed on the inclined metal surface of the rectangular storage collector and acts as black‐absorber surface . The summary of this article is as follows: details of the experimental setup are described in Section 3, the performance calculations of the system are described in Section 4, the results were clarified and discussed in Section 5, and the conclusions and recommendations were presented in Section 6.…”

Section: Methodsmentioning

confidence: 99%

Performance analysis of the new design of photovoltaic/storage solar collector

2019

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This study intends to develop a low cost, dependable, and efficient storage solar collector for household uses. This design is based on integrating solar cell technology and the solar storage collector into one system to achieve three objectives: water storage, electricity generation, and water heating. In this design, a solar cell was fixed on the inclined metal surface of a rectangular storage collector and acted as a black absorber surface. Two experimental models were constructed to study the performance of the new design. In the first design, which referred to as photovoltaic (PV)/storage solar collector, the solar cell was fixed on the inclined metal surface and worked as a black absorber surface in the conventional collector. The second model was the rectangular storage collector, similar to the first model with most attributes. The results showed that the outlet water temperature reaches the maximum value of 42°C at 2 pm for the PV/storage collector at spring day, and the temperature differences between the outlet and inlet temperature are 14.6°C and 30°C at 2 pm for the PV/storage collector and the conventional storage collector, respectively. The overall efficiency increases as a result of removing hot water from the collector to cool the solar cell and increases the electrical energy produced. Generally, under load conditions, the overall efficiency of the PV/storage collector is higher than the second design. In the summer, the highest value for the overall efficiency of the PV/storage collector was 63.02% under load condition, whereas the higher value for the overall efficiency was 40.88% without load condition.

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Section: Methodsmentioning

confidence: 99%

Performance analysis of the new design of photovoltaic/storage solar collector

2019

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“…Genc et al [23] introduced a transient heat transfer approach for determining the thermal inertia of each component such as glass, trapped air, absorber and working fluid for nanofluid based flat plate solar collectors. The analyses were carried out with water and three different volumetric concentrations of Al2O3 nanoparticles as 1 %, 2 % and 3 %.…”

Section: Heat and Nanofluid Transfermentioning

confidence: 99%

Advances of Nanofluids in Solar Collectors - A Review of Numerical Studies

Menni¹,

Chamkha²,

Lorenzini³

et al. 2019

MMEP

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This paper presents a detailed review of the numerical studies carried out by various researchers in order to obtain enhanced heat transfer in free, forced, and mixed convection, under laminar, transition, and turbulent flow regimes, by using nanofluids in different solar collector geometries. Recently, nanofluids have been increasingly used in various solar collector configurations. Nano-sized metallic or non-metallic particles such as Cu, Au, Al2O3, SiO2, TiO2, CuO, etc, were used in the heat transfer fluid for various solid volume fractions. The average size of the particles was less than 100 nm. The higher conductivity of nanoparticles even at low particle concentration results in higher thermal conductivity of the base fluid and improves the thermal characteristics of the system. Nanoparticle size, type and shape are important factors for the thermal conductivity enhancement of the nanofluid with nanoparticles.

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“…This paper summarized about latest research work, development of enhancing heat transfer by using nanofluids, analyzing the challenges and their physical and chemical properties. Gencet al [20]did experimental research on solar collector for finding thermal performance by using Al 2 O 3 /Water nanofluid, result found 74.39% of maximum collector efficiency with 3% volume concentration in the month of July. Jouybariet al [21]study the effect of different types of nanoparticles and various porous channels in the field of FPSC.…”

Section: Introductionmentioning

confidence: 99%

Particle Optimization of Ceo2/Water Nanofluids in Flat Plate Solar Collector

Sharma,

Tiwari,

Tiwari

et al. 2019

IJEAT

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The present research focuses on the role of CeO 2 /water nanofluid for estimating the performance of flat plate solar collector in respect of energetic and exergetic performance. Based on our experimental findings on varying mass flow rate, the present analysis focuses on a wide range of concentrations to find optimum volume concentration for which thermal performance is maximum. CeO 2 /water nanofluid exhibits high thermal conductivity improvement (~41.7%at 1.5% volume concentration) and comparatively lower dynamic viscosity. Performance evaluation of flat plate collector is based on first law analysis and qualitative nature of energy flow based on second law analysis. Experiments indicate that for~1.0% particle volume concentration at a mass flow rate of 0.03 kg/s, maximum collector efficiency is obtained up to 57.1% instead of water as the base fluid. Exergetic efficiency observed 84.6%at optimum concentration (~1.0% particle volume) of nanofluid at0.01 kg/s flow rate.

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Thermal performance of a nanofluid-based flat plate solar collector: A transient numerical study

Cited by 101 publications

References 33 publications

Performance analysis of the new design of photovoltaic/storage solar collector

Performance analysis of the new design of photovoltaic/storage solar collector

Advances of Nanofluids in Solar Collectors - A Review of Numerical Studies

Particle Optimization of Ceo2/Water Nanofluids in Flat Plate Solar Collector

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