Thermal performance evaluation of a nanofluid‐based flat‐plate solar collector

Jouybari, H. Javaniyan; Nimvari, Majid Eshagh; Saedodin, Seyfolah

doi:10.1007/s10973-019-08077-z

Cited by 32 publications

(8 citation statements)

References 62 publications

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“…Relative to the water‐based PVT panel, up to 12.8% enhancement of thermal efficiency was achieved by Sardarabadi et al 26 when SiO 2 /water nanofluid flow in the cooling section of the collector. The application of SiO 2 nanopowders (20–30 nm) in a FPSC was studied by Jouybari et al 27 Although this kind of nanoparticles has low thermal conductivity, but they can intensify the thermal performance of the solar system positively. Hosseinzadeh et al 28 conducted a few tests to assess the behavior of ZnO/water nanofluid in a solar system, and 61.21% improvement for the thermal efficiency and 20°C temperature rise for coolant flow through the pipe was reported.…”

Section: Introductionmentioning

confidence: 99%

“…Relative to the water-based PVT panel, up to 12.8% enhancement of thermal efficiency was achieved by Sardarabadi et al 26 when SiO 2 /water nanofluid flow in the cooling section of the collector. The application of SiO 2 nanopowders (20-30 nm) in a FPSC was studied by Jouybari et al 27 Although this kind of nanoparticles has low thermal conductivity, but they can intensify the thermal performance of the solar system positively.…”

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confidence: 99%

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Application of Al₂O₃/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Zamen

Kahani

Rostami

et al. 2022

Energy Science & Engineering

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A new geometry of photovoltaic/thermal (PVT) system is introduced in this study, and the application of Al2O3/water nanofluid as the coolant on the electrical and thermal behavior of a solar system is experimentally evaluated. To intensify the thermal ability of the solar collector, a serpentine half‐pipe cooling system is designed and fabricated behind the solar panel for better cooling. The cells of the panel are assembly on a 3‐mm‐thick aluminum plate, and the Tedlar removes from the system to maximize the heat transfer in the cooling section. A special layer arrangement for the composite panel is used to minimize thermal resistance of the system. Different concentrations of nanofluid samples (0.05–0.5 wt.%) prepared. To increase the stability of prepared nanofluids, suitable surfactants are also used. Based on the obtained results, adding the nanoparticles to the pure water can remarkably raise the efficiency of the PVT apparatus. The best behavior of the solar collector is observed for 0.5 wt.% of nanofluid samples. 126.71% and 7.38% enhancement in terms of thermal and electrical efficiency can be gained by the application of nanofluid in the system compared with pure water, respectively. The best obtained value of the overall efficiency is around 93.73% for the studied system. The maximum temperature rise for water and nanofluid is around 5.5 and 9.1°C, respectively, which confirms the better cooling ability of PVT system by nanofluid compared with water.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Application of Al₂O₃/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Zamen

Kahani

Rostami

et al. 2022

Energy Science & Engineering

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“…A three-dimensional FPSC has been simulated in this study using the CFD package ANSYS Fluent [41] for analyzing the fluid flow behavior and the temperature distribution across the collector. The geometric details of FPSCs are extracted from the experimental work reported by [13] that the model was validated against. The computational domain of our modeling is shown in Figure 1, which comprised an aluminum absorber plate, two copper headers, and four connector riser tubes of the same material.…”

Section: Geometric Configurationmentioning

confidence: 99%

“…Among the studied nanofluids, water-based GNP nanofluid with a specific surface area of 750 m 2 /g and 0.1 wt% concentration was reported as the best alternative for efficiency enhancement in FPSCs [12]. An experimental and analytical investigation was performed using silica nanofluid (SiO 2 /deionized water) in FPSC by Jouybari et al [13] for varied mass flow rates (1, 2, and 3 L/min) and volume fractions (0.4% and 0.6%). Energy efficiency was found to enhance by 1.8% when the particle fraction was raised from 0.4% to 0.6%.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Hydraulic Performance Analysis of Fe3O4-Water Nanofluid-Based Flat-Plate Solar Collectors

et al. 2023

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A cost-effective alternative for lowering carbon emissions from building heating is the use of flat-plate solar collectors (FPSCs). However, low thermal efficiency is a significant barrier to their effective implementation. Favorable nanofluids’ thermophysical properties have the potential to increase FPSCs’ effectiveness. Accordingly, this study evaluates the performance of an FPSC operating with Fe3O4-water nanofluid in terms of its thermo-hydraulic characteristics with operating parameters ranging from 303 to 333 K for the collector inlet temperature, 0.0167 to 0.05 kg/s for the mass flow rate, and 0.1 to 2% for nanoparticles’ volume fraction, respectively. The numerical findings demonstrated that under identical operating conditions, increasing the volume fraction up to 2% resulted in an improvement of 4.28% and 8.90% in energy and energy efficiency, respectively. However, a 13.51% and 7.93% rise in the friction factor and pressure drop, respectively, have also been observed. As a result, the performance index (PI) criteria were used to determine the optimal volume fraction (0.5%) of Fe3O4 nanoparticles, which enhanced the convective heat transfer, exergy efficiency, and energy efficiency by 12.90%, 4.33%, and 2.64%, respectively.

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“…Dehaj and Mohiabadi, 23 for a 4 m 2 absorber collector area employing MgO‐water nanofluid, the efficiency is 77%. Jouybari et al 24 for a 0.6 m 2 collector utilizing SiO 2 –H 2 O heat release at the rate of 0.4% is 55.2%, and 0.6% is 51.7%. Mirzaei et al 25 tested a 1.51 m 2 collector area utilizing Al 2 O 3 /H 2 O for a 0.1%weight fraction efficiency of 23.6%.…”

Section: Introductionmentioning

confidence: 99%

Critical operating parameters of solar flat plate collectors using CuO nanoparticles of different volume fractions subjected to natural convection

Devarajan

Munuswamy²,

Ganesan

et al. 2023

Env Prog and Sustain Energy

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A flat plate solar water heater is investigated for its efficiency when water and the copper oxide (CuO) of 20 nm size nanoparticles of varying volume fractions and their performance are studied. A solar water heater with a flat plate collector of dimensions 1 × 0.45 m2 with 25 liter per day storage tank capacity, which works on the thermo‐syphon principle, is fabricated. The collector is run with a base working fluid of deionized water and then with CuO nanoparticles for different volume fractions of 0.2% and 0.4% with a surfactant to study the collector's efficiency. The surfactant used in cetyltrimethylammonium bromide of 1% in working fluid. The rise in temperature and the collector efficiency is compared for different volume fractions of CuO nanoparticles in the collector. The mixing of nanoparticles thus improves the efficiency of the collector. The experimental result shows that the collector with a 0.4% volume fraction of CuO with water as a working fluid has the maximum rise in temperature and efficiency compared with that of 0.2% and water. During the test, CuO without surfactant showed a slight decrement in heat transfer due to the agglomeration. The collector efficiency for 0.4% volume fraction achieves 63.28%, for 0.2% is 61.58%, and for water 54.15%. The overall efficiency was increased by up to 9.1% compared with base conventional fluid water for lower volume fractions of CuO nanoparticles for a smaller collector area.

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Thermal performance evaluation of a nanofluid‐based flat‐plate solar collector

Cited by 32 publications

References 62 publications

Application of Al₂O₃/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Application of Al₂O₃/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Thermo-Hydraulic Performance Analysis of Fe3O4-Water Nanofluid-Based Flat-Plate Solar Collectors

Critical operating parameters of solar flat plate collectors using CuO nanoparticles of different volume fractions subjected to natural convection

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Thermal performance evaluation of a nanofluid‐based flat‐plate solar collector

Cited by 32 publications

References 62 publications

Application of Al2O3/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Application of Al2O3/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Thermo-Hydraulic Performance Analysis of Fe3O4-Water Nanofluid-Based Flat-Plate Solar Collectors

Critical operating parameters of solar flat plate collectors using CuO nanoparticles of different volume fractions subjected to natural convection

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Application of Al₂O₃/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study

Application of Al₂O₃/water nanofluid as the coolant in a new design of photovoltaic/thermal system: An experimental study