Experimental evaluation of flat plate solar collector using nanofluids

Verma, Sujit Kumar; Tiwari, Arun Kumar; Chauhan, Durg Singh

doi:10.1016/j.enconman.2016.12.037

Cited by 243 publications

(65 citation statements)

References 41 publications

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“…Such systems include flat plate and volumetric absorption solar collectors. Applications of NPs and NFs in flat plate solar collectors are investigated [126][127][128][129][130], including experimental evaluation of flat plate solar collector [127]. Effect of titanium dioxide/water NF use on thermal performance of the flat plate solar collector has been investigated [128].…”

Section: Applications Of Nanoparticles and Nanofluids In Solar Thermamentioning

confidence: 99%

Modeling and analysis of optical properties of nanoparticles and nanofluids for effective absorption of solar radiation and their heating

Pustovalov

2019

SN Appl. Sci.

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This review presents a comprehensive analysis of the recent studies and advances related to optical properties of nanoparticles, their heating under solar irradiation and heat conversion, relevant equations and theoretical modeling approaches and application of nanofluids for direct absorption of solar radiation. A lot of papers including theoretical, numerical and experimental up-to-date works are reviewed and summarized carefully to give a panoramic overview of the role of the nanoparticles. Modern nanotechnology can produce various homogeneous and hybrid (core-shell) nanoparticles from different metals and materials which have unique optical and thermal properties. It was found that the application of nanoparticles selected on the basis of the presented analysis has shown remarkable properties and offers unique advantages over conventional fluids in optical absorption, thermo-physical and heating properties of nanofluids. This fact can play a crucial role in increasing the efficiency of solar energy harvesting.

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Section: Applications Of Nanoparticles and Nanofluids In Solar Thermamentioning

confidence: 99%

Modeling and analysis of optical properties of nanoparticles and nanofluids for effective absorption of solar radiation and their heating

Pustovalov

2019

SN Appl. Sci.

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“…Moreover, they [25] reported that change in difference between pH of nanofluid and phH of isoelectric point affected the collector efficiency in positive way. Verma et al [26] studied with water based MWCNT, graphene, CuO, Al2O3, TiO2, and SiO2 nanofluids and they presented the enhancements in the efficiencies as 23.47%, 16.97%, 12.64%, 8.28%, 5.09% and 4.08%, respectively.…”

Section: Solar Collectorsmentioning

confidence: 99%

Carbon-based Nanofluid Applications in Solar Thermal Energy

2019

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Renewable energy sources such as solar, wind and geothermal are proposed as an alternative to fossil fuels whose excessive use causes global warming. The most popular one of the renewable energy sources is considered as solar energy due to the fact that required energy is provided by the sun entire year around the world. Solar energy systems convert the solar radiation to the useful heat or electricity. In order to achieve better performance in solar thermal systems many studies have been conducted. Some of these studies suggest that heat transfer fluid could be changed with the nanofluids which can be defined as new generation heat transfer fluid. Nanofluids are suspensions of nano-sized particles such as metals, metal-oxides, and Carbon-allotropes (C), in the conventional base-fluids (water, ethylene glycol and oil). Using nanofluid enhances the efficiency and thermal performance of solar systems due to their better thermophysical and optical properties. Recently, C-based nanofluids are getting attention due to their enhanced thermal conductivity and absorptivity at even low concentrations. The results show that C-based nanofluids have a potential to use in solar energy systems: solar collectors, solar stills, photovoltaic/thermal systems.

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“…Nowadays, most of the scientists and engineers are focusing on new nanotechnology and most efficient devices to harness the solar energy.Nanoparticles are the innovative materials with base fluids to enhance the heat absorbing transporting ability. Verma et al [2]did research on solar collector of flat plate type for finding energetic and exergetic performance by using different oxide of nanoparticles in DM water. He had evaluated six different varieties of nanofluids having graphene, MWCNTs, Al 2 O 3 , SiO 2 , TiO 2 and CuO as nanoparticles with base fluid water.…”

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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Experimental evaluation of flat plate solar collector using nanofluids

Cited by 243 publications

References 41 publications

Modeling and analysis of optical properties of nanoparticles and nanofluids for effective absorption of solar radiation and their heating

Modeling and analysis of optical properties of nanoparticles and nanofluids for effective absorption of solar radiation and their heating

Carbon-based Nanofluid Applications in Solar Thermal Energy

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

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