Synthesis, characterization and application of SiO2 and CuO nanofluid in spray cooling of hot steel plate

Kumar, Pravin; Chaurasia, Chandan Kumar; Das, Sudipa; Bhattacharyya, Suparna; Chakraborty, Sudipto

doi:10.1007/s00231-023-03345-z

Cited by 6 publications

(2 citation statements)

References 132 publications

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“…Pulsing amplitude, Strouhal number, nanoparticle solid volume fraction, and impinging jet slot number effect Nano fluid cooling. Pulsating nano-jet cooling systems with alumina-water nanofluid and cylindrical nanoparticles work well for PV systems [153,154]. Spray cooling is the appropriate and most efficient cooling system in space rocket propulsion applications [55].…”

Section: Fluid Typementioning

confidence: 99%

A Review of Parameters and Mechanisms in Spray Cooling

Thakur,

Kadapure,

Hegde

et al. 2023

Metall Mater Eng

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Miniaturisation in avionics, electronics, and medical appliances has led to demands for rapid heat dissipation techniques. The spray cooling technique has gained importance recently due to its advantage over other cooling methods. Parameters affecting heat transfer mechanisms during spray cooling are contemplated. This review presents different heat transfer parameters and their effect on spray cooling by analysis from past studies. Heat transfer surface modifications and different coolant variations to enhance heat transfer effectiveness are also reviewed. Apart from high heat flux having more applications, low heat flux studies have also grabbed the researchers to find solutions with a temperature range lower than 250˚C. Therefore, the upcoming spray cooling technology will have broad applications that will contribute to the maximum efficiency of the heat removal rate.

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Section: Fluid Typementioning

confidence: 99%

A Review of Parameters and Mechanisms in Spray Cooling

Thakur,

Kadapure,

Hegde

et al. 2023

Metall Mater Eng

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“…As they achieved, the greater thermal conductivity of TO indicates the superior heat transfer speeds, conducting to more desirable lifespan, smaller size transformers, and higher e ciency [5][6][7]. Several nanoparticles (NPs) and carbon nanostructures have been utilized to fabricate nano uids to solve this problem [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Graphene Nanoplatelets- and Multi-Walled Carbon Nanotubes-Based Transformer Oil Nanofluids as Coolants with Enhanced Performance

Shanbedi,

Dashtbozorg,

Karimi

et al. 2024

Preprint

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Transformer oil (TO) is a highly pure oil that has high durability at high temperatures and is a superior electrical insulator. TO is utilized as insulation and coolant. One of the common problems of TO is overheating, especially in warm seasons, which reduces the efficiency of the transformer, power outages, etc. In this research, heat transfer (H.T.) coefficient, dimensionless numbers, dielectric breakdown voltage, and physical properties of nanofluids were investigated to improve the efficiency of the transformer by adding nanofluids, including graphene nanoplatelets (GNP) and multi-walled carbon nanotubes (MWCNT) to TO. The results showed that the natural convection heat transfer coefficient of 0.005%wt GNP/TO increased 8.6% and 12.8% compared to pure TO and 0.005%wt MWCNT/TO, respectively. Besides, the forced convection heat transfer coefficient of 0.005%wt GNP/TO enhanced 8.3% and 9.0% compared to pure TO and 0.005%wt MWCNT/TO, respectively. Dielectric breakdown voltage in GNP/TO and MWCNT/TO nanofluids decreased compared to pure TO due to free electrons. The density of TO also increased by adding GNP and MWCNT. The thermal conductivity (T.C.) of GNP/TO nanofluid was also higher than pure oil and MWCNT/TO and increased by rising temperature, while the thermal conductivity of natural transformer oil was reduced by raising the temperature.

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