Heat transfer in nucleate pool boiling of multicomponent mixtures

Rao, G. V. R. Seshagiri; Balakrishnan, A.

doi:10.1016/j.expthermflusci.2004.02.001

Cited by 41 publications

(9 citation statements)

References 30 publications

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“…x is mole fraction of solvent (dominant in amount, for instance, water in this investigation) and a id can be estimated by (1). However this correlation has had a reasonable adaption with many mixtures but against the acidity solution this adaption reduces more than expected.…”

Section: Redevelop and Modifying A New Correlationmentioning

confidence: 97%

“…Until now, many predictive empirical correlations for boiling heat transfer coefficient in pure liquids have been proposed. Vinayak-Balakrishnan [1] has a comprehensive survey on some correlations including Gorenflo [2], Stephan-Abdelsalam [3] and McNelly [4]. The applicability and reliability of some other correlations such as BoykoKruzhilin [5] and Mostinski [6] could be found in some other sources [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Nucleate pool boiling of aqueous solution of citric acid on a smoothed horizontal cylinder

Sarafraz

2011

Heat Mass Transfer

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Nucleate pool boiling heat transfer coefficients were measured during pool boiling of the mixtures of Citric acid/water on a horizontal heated Cylinder. The experiment was done at atmospheric pressure and heat fluxes up to 113 kW m -2 and mass fraction range 0.1496-0.613 over all ranges of mass fraction, the heat transfer coefficients of the mixtures are markedly less than those in single component substances and, in particular, are dramatically deteriorated in the vicinity of both single component substances. An applicability of existing correlations to the present experimental data is discussed. As a result, it is difficult for any existing correlation to predict the true values of pool boiling heat transfer coefficients over all ranges of mass fraction in mixtures of citric acid/water. Available correlation results were not exactly adapted to experimental data and for the best estimation, a new modified model based on Stephan-Kroner has been achieved with reasonable accuracy. Also the status of bubble generation showed that nucleation site density is strictly functioning of heat flux.

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Section: Redevelop and Modifying A New Correlationmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Nucleate pool boiling of aqueous solution of citric acid on a smoothed horizontal cylinder

Sarafraz

2011

Heat Mass Transfer

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“…These two characteristics regarding the influence of composition and heat flux on heat transfer reduction were also observed more or less in other kinds of two-component mixtures investigated in the past. This could be related to non-linear variation in the mixture physical properties with composition (Vinayak Rao and Balakrishnan, 2004).…”

Section: Results For Binary Solutionsmentioning

confidence: 99%

Experimental and theoretical study of pool boiling heat transfer to amine solutions

Peyghambarzadeh

Jamialahmadi

Fazel

et al. 2009

Braz. J. Chem. Eng.

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Abstract-In this investigation, a large number of experiments have been performed to measure the nucleate boiling heat transfer coefficients of water/diethanolamine (DEA) and water/monoethanolamine (MEA) binary solutions. Based on these experimental data, effects of physical properties such as surface tension and viscosity of mixtures on nucleate boiling heat transfer coefficients and also on bubble dynamics have been discussed. Meanwhile, some photographs have also been selected which illustrate the behaviours of bubbles near the heat transfer surface. In this article, a new correlation has been developed on the basis of the correlation of Stephan and Körner which is known as a successful correlation for the prediction of nucleate boiling heat transfer coefficients of mixtures. Comparison of the prediction of this new correlation with experimental data indicates that this modification can significantly improve the performance of the Stephan and Körner correlation.

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“…In recent decades, nucleate boiling with pure components and mixtures has been widely investigated and discussed in the literature, both in textbooks [13,15] and scientific papers. There are many works that discuss the mechanisms and characteristics of nucleate boiling [20,29,39,42,45,46] and correlations for predicting the heat transfer coefficient (HTC), either for pure components [14,21,33,34,40] or mixtures [18,41,48,49]. This substantial research effort is justified by the many applications where nucleate boiling is found, such as refrigeration, nuclear energy and space engineering.…”

Section: Introductionmentioning

confidence: 99%

Gasoline surrogates in nucleate boiling heat transfer

Oliveira

Alegre²,

Santos

2019

J Braz. Soc. Mech. Sci. Eng.

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Many correlations to estimate the heat transfer coefficient (HTC) in nucleate boiling with binary, ternary or multicomponent mixtures are available in the literature. These correlations are usually based on phase-equilibrium parameters. Direct calculation of the HTC in mixtures with hundreds of components, such as gasoline, is thus practically impossible, as the phaseequilibrium data for such mixtures cannot be easily obtained or calculated. In research fields such as droplet evaporation and mixture thermodynamics, surrogates are constantly used to replace these multicomponent mixtures in calculations; however, this method has not yet been used in boiling research. Here, gasoline surrogates are proposed to estimate the HTC during nucleate boiling. A Monte Carlo search for the optimal composition is used to find the surrogates, and their applicability to gasoline-ethanol blends is evaluated. Two of the surrogates tested matched the experimental data well: surrogate B (16.4% n-butane + 83.6% isooctane) and surrogate C (26.2% n-butane + 42.1% n-hexane + 31.7% isooctane). Both surrogates allowed the HTC for gasoline (3.6% and 3.5% overall average deviation, respectively) and gasoline-ethanol blends (5.6% and 6.9% deviation at 400 kW/m 2 heat flux, respectively) to be estimated accurately.

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Heat transfer in nucleate pool boiling of multicomponent mixtures

Cited by 41 publications

References 30 publications

Nucleate pool boiling of aqueous solution of citric acid on a smoothed horizontal cylinder

Nucleate pool boiling of aqueous solution of citric acid on a smoothed horizontal cylinder

Experimental and theoretical study of pool boiling heat transfer to amine solutions

Gasoline surrogates in nucleate boiling heat transfer

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