Heat transfer coefficients for boiling mixtures

Sternling, C. V.; Tichacek, L. J.

doi:10.1016/0009-2509(61)80040-7

Cited by 90 publications

(10 citation statements)

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“…The greater the amount of the liquid left behind in the cavities, the greater will be the mass diffhion flux (NA) (see Figure 10). The analysis of Sternling and Tichacek (1961) support this hypothesis. Sternling and Tichacek (1961) suggested that the decrease in the rate of nucleation (as well as the nucleation sites) was caused by the clogging of the cavities by the less volatile component due to the preferential evaporation of the more volatile component.…”

Section: Discussionsupporting

confidence: 74%

“…The analysis of Sternling and Tichacek (1961) support this hypothesis. Sternling and Tichacek (1961) suggested that the decrease in the rate of nucleation (as well as the nucleation sites) was caused by the clogging of the cavities by the less volatile component due to the preferential evaporation of the more volatile component. This decrease is also in accordance with the analysis of Calus and Rice (1972) who stated that for higher difTusion rates of the more volatile component, there will be a higher resistance to heat transfer.…”

Section: Discussionsupporting

confidence: 74%

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Nucleation site density in pool boiling of binary mixtures: Effect of surface micro‐roughness and surface and liquid physical properties

Balakrishnan

1997

Can J Chem Eng

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The nucleation site density (N/A) during pool boiling of binary mixtures has been experimentally examined in terms of the heating surface physical properties, the liquid physical properties, the vapour liquid equilibria and the surface micro-roughness. The liquid mixtures used were acetone -carbon tetrachloride and n-hexane -carbon tetrachloride. A parameter R,, to characterize the micro-roughness of the heating surface was defined as the average value of the peaks and valleys on the surface. The study shows that while at low R, values the physical properties of the liquid and the binary composition are not as important as the surface roughness; at higher R, values the liquid properties and composition are also important. A correlation based on the present data has been proposed.La densite de sites de nucleation (N/1) lors de l'ebullition de melanges binaires a Bte etudiee experimentalement en termes de proprietes physiques de surface de chauffe, de propriktes physiques liquides, d'equilibres liquide-vapeur et de micro-rugosite de surface. On a utilise comme melanges liquides un melange d'acetone et tetrachlorure de carbone et un melange de n-hexane et tetrachlorure de carbone. Un parametre R, pour caracteriser la micro-rugosite de la surface de chauffe a ete defini comme etant la valeur moyenne des sommets et vallees sur la surface. L'etude montre que si a de faibles valeurs de R, les proprietes du liquide et de la composition binaire ne sont pas aussi importantes que la rugosite de la surface, h de fortes valeurs de R, les propri6tes du liquide et la composition sont aussi importants. On propose une correlation s'appuyant sur ces donnees.

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Section: Discussionsupporting

confidence: 74%

Section: Discussionsupporting

confidence: 74%

Nucleation site density in pool boiling of binary mixtures: Effect of surface micro‐roughness and surface and liquid physical properties

Balakrishnan

1997

Can J Chem Eng

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“…Heat transfer experiments were performed with aqueous solutions of the following salts: NaCl, Na 2 SO 4 and KNO 3 on the solubility of the salts, and the valence and size of the respective ions. The strength of the electrolyte solutions is generally defined by the ionic strength according to equation (3) [15]:…”

Section: Test Solutions and Range Of Parametersmentioning

confidence: 99%

“…They suggested that preferential evaporation of the more volatile component takes places at the heated surface such that the local boiling point rises. Sternling and Tichacek [3] provided three possible explanations:…”

Section: Introductionmentioning

confidence: 97%

Pool boiling heat transfer to electrolyte solutions

Jamialahmadi

Helalizadeh

Müller‐Steinhagen

2004

International Journal of Heat and Mass Transfer

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“…Sterling and Tichacek [25] and Sarafraz's team [26][27][28] studied heat transfer during boiling of water-glycerin mixtures on stainless steel tubes at atmospheric pressure. Sarafraz et al focused on low heat fluxes below 95 kW m −2 .…”

Section: Boiling Of Water-glycerin Mixturesmentioning

confidence: 99%

Saturated and subcooled pool boiling heat transfer in mixtures of water and glycerin

Vajc

Može

Hadžić

et al. 2022

Experimental Heat Transfer

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Heat transfer coefficient (HTC) was experimentally measured for saturated and subcooled pool boiling of binary mixtures of water and glycerin. Saturated boiling was studied for mixtures with water mass fractions 𝜔 w from 100 % to 60 % on horizontal flat nickel-plated surfaces at heat fluxes from 50 to 650 kW m −2 at atmospheric pressure. Subcooled boiling was investigated in the range of subcooling from 0 to 30 K at heat fluxes of approximately 250, 450 and 650 kW m −2 . It was found that mixture effects have a significant impact on saturated boiling HTC even for mixtures with very low content of glycerin as significant drops of HTC were observed for subtle changes in composition for mixtures of high 𝜔 w . Measured HTC was successfully correlated with the combination of Yagov (1999) and Inoue and Monde (2009) correlations with a mean relative error of 12 %. A simple empirical HTC correlation is also proposed. For subcooled boiling, developed subcooled boiling regime was reached for all investigated heat fluxes. For this regime, correlations which were able to predict HTC for saturated boiling were employed to predict subcooled boiling HTCs for all investigated concentrations, heat fluxes and subcoolings. Effect of subcooling and effect of liquid composition on total HTC were of the same importance for mixtures with higher water content. With increasing concentration of glycerin in the mixture, decrease of total HTC with increasing subcooling became more significant.

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Heat transfer coefficients for boiling mixtures

Cited by 90 publications

References 0 publications

Nucleation site density in pool boiling of binary mixtures: Effect of surface micro‐roughness and surface and liquid physical properties

Nucleation site density in pool boiling of binary mixtures: Effect of surface micro‐roughness and surface and liquid physical properties

Pool boiling heat transfer to electrolyte solutions

Saturated and subcooled pool boiling heat transfer in mixtures of water and glycerin

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