Proposal for a correlation raising the impact of the external diameter of a horizontal tube during pool boiling

Baki, Touhami; Aris, Abdelkader; Tebbal, Mohamed

doi:10.1016/j.ijthermalsci.2014.05.023

Cited by 16 publications

(9 citation statements)

References 24 publications

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“…A set of empirical correlations has been proposed to assess the heat transfer rate during nucleate pool boiling on a heated surface submerged in a liquid [5,[14][15][16]. The heat transfer was studied with the use of various modes and it was found that the principal parameters, which influence pool boiling, are the heat flux, the saturated pressure, the thermo-physical properties, and the characteristics of the surface of boiling.…”

Section: Review Of Empirical Correlationsmentioning

confidence: 99%

“…Characterization of the heat transfer requires knowledge of thermal behavior, hence the search for correlations for the prediction adapted to the fluid. Baki and Aris [3] experimentally examined the boiling of the refrigerant R141b outside a horizontal tube, Baki et al [4,5] analyzed the influence of the diameter of the heating element on the boiling of pure fluids and have proposed a correlation that can determine the coefficient of heat transfer. Baki [6][7][8] compared the experimental boiling data with those of values predicted by the correlations taken from the literature, and Baki [9] compared the experimental data of the pool boiling liquid hydrogen with known correlations and studied the critical flux and the heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

“…All these correlations are used in a general framework whatever the type of heating, plates, wire, or tube. Baki et al [5] developed a correlation to predict the heat transfer coefficient applicable to horizontal tubes, which depends on the diameter of the heating element.…”

Section: Introductionmentioning

confidence: 99%

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Archive of Mechanical Engineering

Baki

Aris

Tebbal

2021

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Section: Review Of Empirical Correlationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Archive of Mechanical Engineering

Baki

Aris

Tebbal

2021

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“…Based on the approach of Touhami et al [44], we took general form of the Nusselt yz = P{c l |\ } , we consider that the pressure and the density ratio have an effect on the behavior of the fluid, we added two dimensionless groups ~/~ and / + .…”

Section: New Correlationmentioning

confidence: 99%

Survey on the nucleate pool boiling of hydrogen and its limits

Baki

2020

Journal of Mechanical and Energy Engineering

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Nucleate pool boiling is a very efficient transfer regime with low temperature gradients, bounded between two heat flux values and which border transitions to other regimes, this phenomenon is well framed with correlations; our study aims to clarify the applicability of this regime to liquid hydrogen and to develop reliable correlations for a useful and qualitative agreement. An exhaustive review on the nucleate pool boiling of hydrogen and the limits of this regime, whether are the onset nucleate boiling (ONB) and the critical heat flux (CHF) was made, allowing the collection of more than 1400 points from experimental setups, highlighting a variety of parameters. Five predictive correlations were drawn from the literature, graphical and statistical comparisons were made, two in five reveal acceptable results. After analysis of the experimental data, new correlations were developed and compared with the data collected, convincing results were obtained and discussed. A simple form was expressed for the heat flux , shows better predicted values; convincing results of the (CHF) have been found on modified Kutateladze correlation (1948), and the CHF value reaches a maximum of 148×103 W/m² for a reduced pressure at 0.35; a nucleate boiling correlation suitable for hydrogen has been developed.

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“…Baki and Aris [2] made the experimental study of the boiling of R141b on a horizontal tube, the results were compared with three known correlations, Baki et al [3] and Touhami et al [4] studied the impact of the outer diameter of a horizontal tube during pool boiling and have proposed a correlation that can give the coefficient of heat transfer as a function of the diameter and the thermo-physical characteristics of the fluid, Baki [5][6][7] compared experimental data of the boiling of fluids outside a horizontal tube with known correlations, Baki [8] studied pool boiling and its limits of hydrogen and compared many correlations with experimental data, also analyzed the onset and the critical heat flux.…”

Section: Introduction (Heading 1)mentioning

confidence: 99%

Boiling Pure Fluids at Sub Atmospheric Pressures

2020

International Journal of Mathematics and Computers in Simulation

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The study and sizing of sorption machine evaporators are based on the prediction of the heat transfer coefficient at atmospheric pressures, but in the literature we only find correlations modeled from experiments for a wide range of pressure, where the majority of the data are above atmospheric pressure; A review of the experiments of boiling at sub-atmospheric pressures was carried out and compared to four known correlations for three types of fluids, which are water, hydrocarbons and refrigerants; The results obtained showed deviations of the predicted data from the experimental values for three correlations and convincing results for the fourth.

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Proposal for a correlation raising the impact of the external diameter of a horizontal tube during pool boiling

Cited by 16 publications

References 24 publications

Archive of Mechanical Engineering

Archive of Mechanical Engineering

Survey on the nucleate pool boiling of hydrogen and its limits

Boiling Pure Fluids at Sub Atmospheric Pressures

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