Energy storage system with flat plate solar collector and water-ZnO nanofluid

Mohamed, Mousa M.; Mahmoud, N. H.; Farahat, M.A.

doi:10.1016/j.solener.2020.03.060

Cited by 35 publications

(11 citation statements)

References 12 publications

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“…33 So little volume fraction of CuO nanoparticle is best suited for enhancement of the thermal performance of the collector system. 1,17,29,30 The results agree with similar studies made by Munuswamy et al, 30 Mohamed et al, 15 and Matheswaran et al 31…”

Section: Performance Details Of Inlet and Outlet Temperature Of Varyi...supporting

confidence: 90%

“…28 From the temperature profiles, it was determined that at different locations of riser tubes, temperature and flow are spread consistently and uniformly with minimum heat losses across the collector, indicating an increase in overall collector efficiency. 15,29,30…”

Section: Temperature Profile For Base Working Fluid Water For the Col...mentioning

confidence: 99%

“…29,30 It was deduced that the addition of CuO nanofluids in improved efficiency even at the peak of time. 15,31 Still, the addition of water will result in the efficiency starting to decrease. 32 In addition, the thermosyphon action in the collector is disrupted when off-peak hours arrive, and the amount of available sunlight begins to decline.…”

Section: Performance Details Of Inlet and Outlet Temperature Of Varyi...mentioning

confidence: 99%

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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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Section: Performance Details Of Inlet and Outlet Temperature Of Varyi...supporting

confidence: 90%

Section: Temperature Profile For Base Working Fluid Water For the Col...mentioning

confidence: 99%

Section: Performance Details Of Inlet and Outlet Temperature Of Varyi...mentioning

confidence: 99%

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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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“…The best increase was 21.32% at a concentration of 0.3% and a flow of 3 l/min. Mousa M. Mohamed et al (2020) [14] they used water and a nano-fluid consisting of zinc oxides in water (ZnO/water) at two volume concentrations (0.05% and 0.1%) as working fluids in a flat plate solar collector used with a thermal storage system. The experimental results showed an increase in the thermal efficiency of flat plate solar collector when using nano-fluid compared to water as follows: 4.81% and 6.57% at a concentration of 0.05% and 0.1%, respectively.…”

Section: The Use Of Nano-fluids Containing Metal Oxides As Working Fluidsmentioning

confidence: 99%

Improving the Thermal Efficiency of Flat Plate Solar Collector Using Nano-Fluids as a Working Fluids: A Review

Kadhim

Ibrahim

2021

IJOIR

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Solar energy is one of the most important types of renewable energy and is characterized by its availability, especially in Iraq. It can be used in many applications, including supply thermal energy by solar collectors. Improving the thermal efficiency of solar collector leads to an increase in the thermal energy supplied. Using a nano-fluid instead of base fluid (water is often used) as a working fluid is a method many used to increase the thermal efficiency of solar collectors. In this article, the latest research that used nano-fluid as a working fluid in evaluating the thermal efficiency of solar collector, type flat plate was reviewed. The thermal efficiency improvement of flat plate solar collector was reviewed based on the type of nanoparticles (metal oxides, semiconductors oxides, carbon compounds) used in the base fluid and comparison was made between these nanoparticles under the same conditions. Moreover, the effect of varying the concentration of nanoparticles in the base fluid and changing the working fluid flow rate on the thermal efficiency of flat plate solar collector was also reviewed. The results of the review showed that nano-fluids containing carbon compounds are better than other nano-fluids and that copper oxide is better than the rest of the metal oxides used in improving the thermal efficiency of flat plate solar collectors.

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“…This improves not only thermal conductivity but also properties such as specific heat capacity ( C p ), density (ρ), viscosity (μ), and optical properties like absorption, which are all significant factors to be considered. 19,20,21 Nanoparticles can be classified into metals such as copper ( Cu ), aluminum ( Al ), silver ( Ag ), iron ( Fe ), zinc ( Zn ), etc. ); metal oxides such as copper oxide ( CuO 2 ), aluminum oxide ( Al 2 O 3 ), titanium dioxide ( TiO 2 ), zinc oxide ( ZnO ), silicon dioxide ( SiO 2 ), magnesium oxide ( MgO ); carbon nanotubes ( CNTs ) such as single-wall CNTs ( SWCNTs ) and multiwall CNTs ( MWCNTs ); fullerene; graphene and nanocomposites; Al 2 O 3 /TiO 2 , Al 2 O 3 /CNT, etc.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review on the impact of nanofluid in solar photovoltaic/thermal system

Manikandan

Mayandi

Sivasubramanian

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Solar energy is a major renewable energy resource used in power production, heating processes, and other applications such as domestic and industrial utilization. It is an abundant form of green energy. Different techniques have been made for energy conversion and one among them is solar photovoltaic/thermal (PV/T) system. Unfortunately, the greatest cause of concern is the rise in temperature of solar PV cells, which will have a negative effect on electrical performance. Thereby, eliminating excess heat on PV cells with heat transfer fluids to lower the temperature of the cells can improve electrical efficiency. A nanofluid is a promising heat transfer fluid to effectively enhance the system efficacy compared with conventional fluids. As the nanoparticle size is very small, the surface area of the nanoparticle is large so it enhances the heat transfer rate. Thereby, recently it has taken on a new dimension for research studies to enhance its thermal behavior for engineering application. This review paper discusses about the importance of nanofluid in solar PV/T system and advantages of employing nanofluid in PV/T system which has high thermo-physical properties. Nanoparticle and nanofluid preparation methods were presented. The thermo-physical properties like thermal conductivity, viscosity, density, and specific heat capacity were also discussed.

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Energy storage system with flat plate solar collector and water-ZnO nanofluid

Cited by 35 publications

References 12 publications

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

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

Improving the Thermal Efficiency of Flat Plate Solar Collector Using Nano-Fluids as a Working Fluids: A Review

A comprehensive review on the impact of nanofluid in solar photovoltaic/thermal system

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