A comprehensive review on pool boiling heat transfer using nanofluids

Khan, Asifa; Ali, Hafız Muhammad

doi:10.2298/tsci190110072k

Cited by 22 publications

(22 citation statements)

References 122 publications

(235 reference statements)

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“…The increase in HTC and CHF tends to be correlated with increasing the concentration of nanoparticles, up to a certain point. At excessive concentrations, the HTC begins to decrease, while the CHF will remain unaltered [ 35 ]. At high nanoparticle concentration, the deposited layer on the surface becomes thicker, which leads to greater thermal resistance and decreases the HTC [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nanoparticle Size and Concentration on Pool Boiling Heat Transfer with TiO2 Nanofluids on Laser-Textured Copper Surfaces

et al. 2022

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The enhancement of boiling heat transfer has been extensively shown to be achievable through surface texturing or fluid property modification, yet few studies have investigated the possibility of coupling both enhancement approaches. The present work focuses on exploring the possibility of concomitant enhancement of pool boiling heat transfer by using TiO2-water nanofluid in combination with laser-textured copper surfaces. Two mass concentrations of 0.001 wt.% and 0.1 wt.% are used, along with two nanoparticle sizes of 4–8 nm and 490 nm. Nanofluids are prepared using sonification and degassed distilled water, while the boiling experiments are performed at atmospheric pressure. The results demonstrate that the heat transfer coefficient (HTC) using nanofluids is deteriorated compared to using pure water on the reference and laser-textured surface. However, the critical heat flux (CHF) is significantly improved at 0.1 wt.% nanoparticle concentration. The buildup of a highly wettable TiO2 layer on the surface is identified as the main reason for the observed performance. Multiple subsequent boiling experiments using nanofluids on the same surface exhibited a notable shift in boiling curves and their instability at higher concentrations, which is attributable to growth of the nanoparticle layer on the surface. Overall, the combination of nanofluids boiling on a laser-textured surface proved to enhance the CHF after prolonged exposure to highly concentrated nanofluid, while the HTC was universally and significantly decreased in all cases.

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Section: Introductionmentioning

confidence: 99%

Effect of Nanoparticle Size and Concentration on Pool Boiling Heat Transfer with TiO2 Nanofluids on Laser-Textured Copper Surfaces

et al. 2022

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Section: Thermal Applicationsmentioning

confidence: 99%

“…Review papers have intensively presented research studies that cover the preparation methods of various nanofluids and test their effect on CHF and HTC [ 321 , 355 , 356 , 357 , 358 , 359 ]. It was mentioned that carbon-based nanomaterials such as graphene dispersed in water enhanced the heat transfer as compared to any other nanoparticle [ 355 ]. Nevertheless, there are many reasons that contribute to the CHF enhancement such as surface roughness [ 360 ], deposition of nanoparticles [ 361 ], concentration of nanoparticle beyond a certain limit [ 362 , 363 ], increase in surface wettability [ 364 ], and capillary effect [ 365 ].…”

Section: Thermal Applicationsmentioning

confidence: 99%

“…Depending upon either original surface condition or size of nanoparticle, the surface roughness can be increased [ 360 ] or decreased [ 369 ]. Generally, HTC was found to be maximum when carbon nanoparticles were used for boiling [ 355 ]. Since the current work focuses on the effect of carbon-based nanofluids (i.e., graphene, ND, and CNT) on heat transfer application, various selected studies on CHF and HTC in pool boiling heat transfer have been listed in Table 7 and Table 8 , respectively.…”

Section: Thermal Applicationsmentioning

confidence: 99%

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Carbon-Based Nanofluids and Their Advances towards Heat Transfer Applications—A Review

et al. 2021

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Nanofluids have opened the doors towards the enhancement of many of today’s existing thermal applications performance. This is because these advanced working fluids exhibit exceptional thermophysical properties, and thus making them excellent candidates for replacing conventional working fluids. On the other hand, nanomaterials of carbon-base were proven throughout the literature to have the highest thermal conductivity among all other types of nanoscaled materials. Therefore, when these materials are homogeneously dispersed in a base fluid, the resulting suspension will theoretically attain orders of magnitude higher effective thermal conductivity than its counterpart. Despite this fact, there are still some challenges that are associated with these types of fluids. The main obstacle is the dispersion stability of the nanomaterials, which can lead the attractive properties of the nanofluid to degrade with time, up to the point where they lose their effectiveness. For such reason, this work has been devoted towards providing a systematic review on nanofluids of carbon-base, precisely; carbon nanotubes, graphene, and nanodiamonds, and their employment in thermal systems commonly used in the energy sectors. Firstly, this work reviews the synthesis approaches of the carbon-based feedstock. Then, it explains the different nanofluids fabrication methods. The dispersion stability is also discussed in terms of measuring techniques, enhancement methods, and its effect on the suspension thermophysical properties. The study summarizes the development in the correlations used to predict the thermophysical properties of the dispersion. Furthermore, it assesses the influence of these advanced working fluids on parabolic trough solar collectors, nuclear reactor systems, and air conditioning and refrigeration systems. Lastly, the current gap in scientific knowledge is provided to set up future research directions.

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“…Samina Javed et al [17] discussed the issue of convection heat transfer of nanofluids in different flow regimes for different heat transfer devices. In addition, many significant features of the MHD flow past a stretching sheet were presented and elaborated in the literature [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Heat and mass transfer flow of nanofluids in presence of chemical reaction with partial slip conditions

Narender¹,

Govardhan²,

Sarma³

2020

J. Appl. Math. Comput. Mech.

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A mathematical model is presented for analyzing the convective fluid over a stretching surface in the presence of nanoparticles. The analysis of heat and mass transfer of converted fluid with slip boundary condition is investigated. To convert the governing Partial Differential Equations (PDEs) into a system of nonlinear Ordinary Differential Equations (ODEs) we use similarity transformations. The shooting method is used to solve the system of ODEs numerically, and obtained numerical results are compared with the published results and found that both are in excellent agreement. The numerical values obtained for the velocity, temperature and concentration profiles are presented through graphs and tables. A discussion on the effects of various physical parameters and heat transfer characteristics is also included.

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A comprehensive review on pool boiling heat transfer using nanofluids

Cited by 22 publications

References 122 publications

Effect of Nanoparticle Size and Concentration on Pool Boiling Heat Transfer with TiO2 Nanofluids on Laser-Textured Copper Surfaces

Effect of Nanoparticle Size and Concentration on Pool Boiling Heat Transfer with TiO2 Nanofluids on Laser-Textured Copper Surfaces

Carbon-Based Nanofluids and Their Advances towards Heat Transfer Applications—A Review

Heat and mass transfer flow of nanofluids in presence of chemical reaction with partial slip conditions

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