Modeling and experimental study of nucleate boiling on a vertical array of horizontal plain tubes

Ribatski, Gherhardt; Jabardo, José María Sáiz; Silva, Evandro Fockink da

doi:10.1016/j.expthermflusci.2008.04.008

Cited by 36 publications

(11 citation statements)

References 24 publications

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“…In contrast, for the high-flux region, the HTC is nearly constant within the tube bundle, and a slight decrease in the HTC is observed along the height of tube bundle is observed, even for extremely high heat fluxes, which results in the lower than unity configuration factor, especially at the upper boundary of the flow channel, where high levels of vapour volume fractions exist. These numerical predictions are in prefect agreement with the experimental data of Hsieh et al (2003), Da Silva et al (2007, and Ribatski et al (2008). (b) Bubble coalescence forms large bubbles, especially when the heat flux is increased.…”

Section: The Variation Of Htc Within the Tube Bundlesupporting

confidence: 86%

Numerical investigation of pool boiling on a staggered tube bundle for different working fluids

Ahmadpour

Abadi

Meyer

2018

International Journal of Multiphase Flow

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In the present work, a numerical approach is proposed to simulate two phase pool boiling on a staggered tube bundle. The simulations are carried out using the Eulerian-Eulerian framework for two phase flows, accounting for the nucleate pool boiling on the surface of the tube bundle. A favourable agreement was reported between the numerical results and previously published experimental data for pool boiling heat transfer. The numerical results are presented for four working fluids, including water, ethanol, R134a and R22, each at three different saturation temperatures. The effect of saturation temperature, the variation in the heat transfer within the tube bundle and the effect of the working fluid are fully addressed.

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Section: The Variation Of Htc Within the Tube Bundlesupporting

confidence: 86%

Numerical investigation of pool boiling on a staggered tube bundle for different working fluids

Ahmadpour

Abadi

Meyer

2018

International Journal of Multiphase Flow

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“…Boiling heat transfer from tubes and tube bundles is an important research area in the multiphase flow and heat transfer fields [1]. Investigations are prompted by the need to understand the boiling mechanism, a key factor in the design of various industrial heat exchangers widely used in power generation and petrochemical plants.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of pool boiling on smooth, vertically aligned tandem tubes

Abadi

Ahmadpour

Meyer

2018

International Journal of Thermal Sciences

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“…This kind of experimental setup has been successfully employed by other researchers such as Celata et al [56], Ramstorfer et al [57] and Ribatski et al [58].…”

Section: Test Bench and Measure Equipmentmentioning

confidence: 99%

On the effect of surface roughness and material on the subcooled flow boiling of water: Experimental study and global correlation

Paz

Conde

Suárez

et al. 2015

Experimental Thermal and Fluid Science

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.On the effect of surface roughness and material on the subcooled flow boiling of water: Experimental study and global correlation. AbstractIn this paper, a new correlation based on experimental results for subcooled flow boiling of water at low pressure is proposed, preceded by a brief review on how the solid-fluid interaction has been dealt with in past correlations. The experimental sample comprises seven heating surfaces of different material (copper, aluminium and stainless steel) and roughness. The experimental facility is presented in detail and the surface morphology of each test specimen is analysed by means of an optical interferometer. The correlation is based on the assumption that the effect of material and roughness can be captured by means of modifiers of a general expression. The surfaces chosen in this work were selected to capture a broad range of industrial applications, and, though the correlation found fits well in the range of commercial and relatively high values of R a (up to 7 µm in the case of copper), further study is needed for larger values, as a discontinuity in the effect was observed, which has been previously determined by some authors. Thus, the proposed global correlation permits the calculation of the boiling heat flux taking into account, in addition to the more classical parameters such as pressure and bulk temperature, the effect of both the roughness and material of the wall heater, allowing its general use in low pressure applications such as those commonly found in the automotive industry.

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Modeling and experimental study of nucleate boiling on a vertical array of horizontal plain tubes

Cited by 36 publications

References 24 publications

Numerical investigation of pool boiling on a staggered tube bundle for different working fluids

Numerical investigation of pool boiling on a staggered tube bundle for different working fluids

Numerical simulation of pool boiling on smooth, vertically aligned tandem tubes

On the effect of surface roughness and material on the subcooled flow boiling of water: Experimental study and global correlation

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