Numerical Simulation of Nucleate Boiling Heat Transfer Performance using SiO<sub>2</sub>/Water Nanofluid

Singh, Akshay; Singh, Sudhir Kumar; Sharma, Deepak

doi:10.1088/1757-899x/1259/1/012012

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…In this instance, the use of nanofluid decreased the amount of wall superheat. 55 It is possible to foresee and estimate material qualities as well as the behavior of complicated systems using intelligent algorithms. Intelligent techniques have been widely used in the thermal engineering industry in recent years to predict the performance of heat pipes and heat exchangers, model the dynamic viscosity, specific heat, and thermal conductivity of heat transfer fluids, and calculate the output of thermal systems like solar collectors.…”

Section: Heat Transfer Processes Of Pool Boilingmentioning

confidence: 99%

A review of nucleate pool-boiling heat transfer in different liquids and nanofluids

Zarrag,

Ismail,

Sann

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part A:

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The goal of this review is to examine the current state of the art in nucleate pool boiling heat transfer in a variety of different fluids. The review is divided into many sections that discuss heat transfer in pool boiling, such as pool boiling of nanofluids, boiling behavior of water–glycerin combinations, and operational parameters. With the appropriate mixes of hydrocarbons and other commercial liquids, higher heat transfer coefficients may be produced. Coatings of nanoparticles with varying layer thicknesses applied to the heater surface may be optimized to improve heat transfer from the pool to the surrounding water. The heat transfer hypothesis elucidates the peculiarities of each pool’s boiling regime. It is also possible to expand it to flow boiling by combining pool boiling liquid motion with external mechanical force. Other phase transitions, such as condensation, solidification, and melting, can also be described using boiling heat flow processes. Pool boiling performance can be improved by making a variety of adjustments to the heating surfaces as well as by using pure liquids in the water. Improvements can be made to boiling parameters such as the heat flux, the critical heat flux, the heat transfer coefficient, bubble development and departure, and so forth. A nanoparticle addition to a pure liquid or a surface coating on a heating surface can improve heat transfer and boiling properties by increasing the surface area of the liquid. Pool boiling critical heat flux was enhanced with Al2O3-water nano fluid. Authors used three different powder sizes of Al2O3 which were 0.05, 0.3 and 1.0 μm. Addition of alumina particle in water increases the boiling heat flux. Critical heat flux (CHF) was significantly enhanced using Titania and Alumina nano particles in water as compared to pure water. Average size of nano particle used was 85 nm measured by scattering electron microscope. Enhancement in Critical heat flux is due to nano particle coating on heating surface. Characteristics of nucleate boiling are greatly affected by the operating pressure. Miniature flat heat pipe (MFHP) with evaporator having micro grooved heat transfer surface gives 50% increment in critical heat flux at atmosphere pressure whereas this value increases up to 150% at 7.4 kPa pressure. The addition of CNT (carbon nanotube) to the base liquid increases the critical heat flux. Transmission electron microscopy confirms the average size of a nanoparticle as 15 nm. Authors found that by decreasing pressure from atmosphere condition critical heat flux increases to 200% with CNT/water nano fluid as compared to deionized water. SiC-water nanofluids of 100 nm size were experimented with at volume concentrations of 0.001%, 0.001%, and 0.01%. The size of the nanoparticle was confirmed by a scattering electron microscope. Authors concluded that at 0.01% of nano particle enhances critical heat flux to 105%.

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Section: Heat Transfer Processes Of Pool Boilingmentioning

confidence: 99%

A review of nucleate pool-boiling heat transfer in different liquids and nanofluids

Zarrag,

Ismail,

Sann

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part A:

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Improving the attenuation Ability of gamma rays for silicate glass system composites (GS-PbO): a comparative theoretical study

Alhammashi

Alattabi

Aldhuhaibat

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Mass attenuation coefficients (μ/ρ) were calculated for seven models distributed between the ordinary concrete (Conc.), The silicate glass system (GS), and the composite of (1-x)GS-(x)PbO, where x = 0.15, 0.3, 0.45, 0.6, and 0.75 fractions by weight (wt), using the XCOM and XMuDat programs for the range of gamma photon energies from 0.1-50MeV. The results of the calculations of the linear attenuation coefficient (μ), the half value layer (HVL), the relaxation distance length (λ), and the transmission factor (T) showed a marked improvement in the ability of radiation attenuation when increasing the concentration of the reinforcement material in the composites. In general, the values of μ were inversely proportional and the values of HVL, λ, and T were exponentially proportional with increasing gamma photon energy values up to 10MeV, after which their behavior was gradually slightly reversed for all samples of the composites. Finally, the results showed that μ increased exponentially, at 0.662, 1.173, and 1.333MeV energies, with the increase in the reinforcement material which achieved the highest values at the energy of 0.662MeV. Also, the values of HVL, λ, and T of different thickness values of shield material decrease linearly with increasing reinforcement material, and T values increase significantly with increased sample thickness for all types of shields.

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Numerical Simulation of Nucleate Boiling Heat Transfer Performance using SiO₂/Water Nanofluid

Cited by 2 publications

References 20 publications

A review of nucleate pool-boiling heat transfer in different liquids and nanofluids

A review of nucleate pool-boiling heat transfer in different liquids and nanofluids

Improving the attenuation Ability of gamma rays for silicate glass system composites (GS-PbO): a comparative theoretical study

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Numerical Simulation of Nucleate Boiling Heat Transfer Performance using SiO2/Water Nanofluid

Cited by 2 publications

References 20 publications

A review of nucleate pool-boiling heat transfer in different liquids and nanofluids

A review of nucleate pool-boiling heat transfer in different liquids and nanofluids

Improving the attenuation Ability of gamma rays for silicate glass system composites (GS-PbO): a comparative theoretical study

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Numerical Simulation of Nucleate Boiling Heat Transfer Performance using SiO₂/Water Nanofluid