Surface roughness variation effects on copper tubes in pool boiling of water

Arenales, Mario R. Mata; Kumar, C.S. Sujith; Kuo, Long-Sheng

doi:10.1016/j.ijheatmasstransfer.2020.119399

Cited by 26 publications

(9 citation statements)

References 18 publications

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“…CuO has similar issues as those of Al 2 O 3 nanoparticles. The results indicate the rise in Nusselt number in Dadjoo et al 6 and Arenales et al 7 …”

Section: Introductionmentioning

confidence: 73%

“…And finally, the convection heat transfer coefficient is calculated from Equation (7). All the properties of MWCNTs/water nanofluids were applied with the average temperature of the MWCNTs/ water nanofluids and the thermal conductivity (k), viscosity (μ), specific heat (c pnf ), and density (ρ) are calculated by the following 27 :…”

Section: Data Processingmentioning

confidence: 99%

“…CuO has similar issues as those of Al 2 O 3 nanoparticles. The results indicate the rise in Nusselt number in Dadjoo et al 6 and Arenales et al 7 Sarafraz et al 8 investigated the heat transfer coefficient (HTC) of Fe 3 O 4 aqueous nanosuspension at various mass concentrations of 0.05 to 0.2 wt.%. The potential role of operating parameters, including heat flux perpendicular to the surface, the concentration of the nanoparticle, strength of magnetic field (MF), zeta potential, concentration of a specific surfactant on HTC, critical heat flux (CHF), and transient fouling resistance of the surface, was identified.…”

Section: Introductionmentioning

confidence: 98%

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Experimental investigation of multiwall carbon nanotubes/water nanofluid pool boiling on smooth and groove surfaces

Moghadam

Goshayeshi

Chaer

et al. 2022

Intl J of Energy Research

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Boiling is an essential process for many industrial applications, such as refrigeration, distillation, and chemical processes. The effectiveness of the heat transfer processes determines the efficiencies of these applications. This study presents the experimental data analysis for pool boiling performance of 0.10, 0.15, and 0.20 wt.% of multiwall carbon nanotubes/water nanofluid on smooth and straight, square, and circular grooved surfaces. According to the experimental results, the configuration S4 with a 30 mm deep circular groove inclined at a 45 angle and 33% higher than the base fluid on the smooth surface had the greatest enhancement in boiling heat transfer coefficient. The result indicated that the inclination of the circular groove had the potential to enhance significantly the pool boiling heat transfer process. Furthermore, this study demonstrated that analyzing the effectiveness of nanofluids in a variety of concentrations and geometrical configurations of heat transfer surfaces is still essential and desirable.

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“…CuO has similar issues as those of Al 2 O 3 nanoparticles. The results indicate the rise in Nusselt number in Dadjoo et al 6 and Arenales et al 7 …”

Section: Introductionmentioning

confidence: 73%

Section: Data Processingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Experimental investigation of multiwall carbon nanotubes/water nanofluid pool boiling on smooth and groove surfaces

Moghadam

Goshayeshi

Chaer

et al. 2022

Intl J of Energy Research

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“…Significant demand for energy-intense heat exchangers for electronic devices has been observed in recent decades [36][37][38][39][40]. An important direction in increasing the efficiency of phase-transition cooling systems is application of coatings to change properties of surfaces on which the phase transition occurs [41][42][43], creation of a special geometry [44][45][46][47][48][49], and formation of micro-and nanoscale structures [50][51][52][53][54]. Since the efficiency of boiling on a surface is determined by a number of parameters, optimization of a set of characteristics by means of structural and technological solutions is quite a nontrivial and controversial problem.…”

Section: Heat Transfer Enhancement and Critical Heat Fluxmentioning

confidence: 99%

Development of Methods for Heat Transfer Enhancement During Nitrogen Boiling to Ensure Stabilization of HTS Devices

Павленко

Кузнецов

2021

J. Engin. Thermophys.

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The paper presents a brief analysis of current achievements and key issues in the field of heat transfer and critical heat flux enhancement during boiling of cryogenic liquids and freons under various heat release laws via micro-structuring of the heat-generating surface. A review of new experimental data on the efficiency of heat transfer and critical heat flux enhancement during pool boiling via new micro-structured capillary-porous coatings created by plasma sputtering and selective laser melting/sintering (3D printing) is presented. The results of analysis of the efficiency of heat transfer and critical heat flux during boiling on heat-generating surfaces with micro-textures of different shapes and micro-profiling created by micro-deforming cutting are presented. New results obtained during nitrogen boiling under various hydrodynamical conditions on the mechanisms of sharp increase in the rate of non-stationary cooling of plates with new structured capillary-porous or low-heat-conductivity coatings with certain parameters are discussed. New results on the degree of heat transfer enhancement during boiling of liquids on micro-structured surfaces modified by the method of micro-arc oxidation are presented.

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“…A number of different techniques are employed to modify the heater surface that can enhance the critical heat flux (CHF) and the heat transfer coefficient (HTC) during a pool boiling phenomenon [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Techniques such as the use of nanofluids [8], extended surfaces called fins [9], incorporating surface roughness [10][11][12][13][14][15][16][17][18][19][20][21][22], etc., have been found to improve the CHF. Among these techniques, incorporating microscale surface roughness is a widely used method that can augment a boiling HTC by up to 600% [10].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Pool Boiling Heat Transfer over Plain and Rough Cylindrical Tubes

Haidary¹,

Hasan²,

Adib³

et al. 2021

IJHT

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This study investigates the pool boiling heat transfer of water over cylindrical heating tubes for different orientations and surface roughness of the tubes. First, two orientations of a smooth heating tube, horizontal and vertical, were used in the boiling chamber. For a given heat flux, the heat transfer coefficient achieved with the horizontal tube was always higher than that for the vertical tube. To investigate the influence of surface roughness, a rough heating tube with a fully rough outer surface was developed through a metal etching process. Under the same range of wall superheat, the rough tube enhanced the heat transfer rate significantly compared to the smooth tube. Finally, a modified heating tube (MHT) was developed by axially roughening half of the surface of an originally smooth tube. The orientation angle of the rough surface of this MHT was varied from 0° (horizontal-upward) to 180° (horizontal-downward) in the chamber. The heat flux increased significantly with the increase of orientation angles from 0° to 90° (the maximum of 80 kW/m2 at 90°), whereas the same decreased as the orientation angle is further increased from 90° to 180°. Results revealed that the bubble dynamics over the heating tubes play a vital role in pool boiling performance.

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Surface roughness variation effects on copper tubes in pool boiling of water

Cited by 26 publications

References 18 publications

Experimental investigation of multiwall carbon nanotubes/water nanofluid pool boiling on smooth and groove surfaces

Experimental investigation of multiwall carbon nanotubes/water nanofluid pool boiling on smooth and groove surfaces

Development of Methods for Heat Transfer Enhancement During Nitrogen Boiling to Ensure Stabilization of HTS Devices

Enhancement of Pool Boiling Heat Transfer over Plain and Rough Cylindrical Tubes

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