Evaporation of a liquid droplet on a hot plate

Xiong, Tianyu; Yuen, M. C.

doi:10.1016/0017-9310(91)90162-8

Cited by 123 publications

(59 citation statements)

References 9 publications

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“…1). This curve is obtained by measuring the total time that it takes a droplet to completely evaporate after it has been gently deposited on a hot wall [13][14][15]. The different boiling regimes are discussed in the following paragraphs in order to emphasize the data available for the modeling of the boiling processes and their validation.…”

Section: Physics Of Boilingmentioning

confidence: 99%

“…In addition, they seem to be constant when the gas pressure decreases under the atmospheric pressure. This behavior are formulated by the following expressions: (13) where T cr represents either T N or T L and ΔT is calculated according to the gas pressure P in the following way : (14) where T b and T c are respectively, the normal boiling temperature and the critical temperature. For the high pressure case, the value of ΔT is assumed to tend linearly towards the value A = Max (1, T cr⎢1bar -T c ) when the gas pressure tends towards the critical pressure.…”

Section: Estimation Of T N and T L Temperaturesmentioning

confidence: 99%

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A Comprehensive Model for Liquid Film Boiling in Internal Combustion Engines

Habchi

2010

Oil Gas Sci. Technol. – Rev. IFP

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Résumé -Un modèle complet pour l'ébullition de film liquide dans les moteurs à combustion interne -Dans cet article, les principaux processus physiques, régissant les régimes d'ébullition nucléée et de transition d'un film liquide, ont été examinés à partir des observations expérimentales disponibles dans la littérature. Les tendances physiques observées, ont été utilisées, pour développer un modèle phénoménologique complet pour l'ébullition de film liquide (LFB). Celui-ci permet le calcul de sa vaporisation, dans le régime d'ébullition nucléée, ainsi que, dans le régime d'ébullition de transition. Ces régimes sont identifiés par les températures de saturation, de Nukiyama et de Leidenfrost. L'estimation des températures de Nukiyama et de Leidenfrost, en fonction de la pression de gaz ambiante, a requis une attention toute particulière. Plusieurs courbes de durée de vie, de gouttes de grosse taille déposées sur une surface chaude dans diverses conditions, ont été choisies parmi celles qui sont disponibles dans la littérature récente pour la validation du modèle LFB. Les résultats numériques montrent que les ordres de grandeur et les tendances observées expérimentalement sont bien respectés. En particulier, le modèle LFB reproduit bien la disparition progressive du régime de Leidenfrost avec des pressions suffisamment élevées du gaz. D'autre part, l'augmentation progressive du taux de vaporisation du liquide avec la rugosité du mur, précédemment observée expérimentalement près du point de Leidenfrost, a été correctement prédite par le modèle LFB. Abstract -A Comprehensive Model for Liquid Film Boiling in Internal Combustion Engines -In this paper, the main physical processes governing the nucleate and transition regimes of the boiling of a liquid film were reviewed from the available experimental observations in the literature. The physical tendencies observed in most experiments have been used to develop a comprehensive phenomenological Liquid Film Boiling (LFB) model which allows the calculation of the vaporization of liquid films in the

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Section: Physics Of Boilingmentioning

confidence: 99%

Section: Estimation Of T N and T L Temperaturesmentioning

confidence: 99%

A Comprehensive Model for Liquid Film Boiling in Internal Combustion Engines

Habchi

2010

Oil Gas Sci. Technol. – Rev. IFP

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“…1) has the shape of a spherical segment (radius r 1 is equal to the liquid layer thickness). The analysis of liquid droplet spilling conditions on the metal substrates [4] carries inference that the hemispheric model can be used as a first approximation in the system under consideration (Fig. 1).…”

Section: Problem Statementmentioning

confidence: 99%

Liquid fuel ignition features during its spilling on the metallic substrate heated up to high temperatures

Vysokomornaya

Scherbinina

Стрижак

2015

EPJ Web of Conferences

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Abstract. Forecasting heat and mass transfer model for the numerical investigation of liquid fuel ignition features during its spilling on the metallic substrate heated up to high temperatures was developed. The dependences of liquid fuel (by the example of kerosene) ignition delay times on the velocity of its spilling, the liquid film (which is formed) thickness and the metallic substrate temperature were found. The least values of these parameters (whereby the ignition is possible under the heat and mass transfer conditions considered) were determined.

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“…Heating, evaporation and ignition of liquid condensed substances drops at contact with hot plate are strongly investigated [1][2][3][4][5][6]. Such interest can be explained by absence of information about main regularities of interconnected heat and mass transfer processes.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of heat and mass transfer processes at the ignition of a liquid condensed substance by an immersed hot particle

Glushkov

Кузнецов

Стрижак

2014

EPJ Web of Conferences

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Abstract.A numerical investigation of heat and mass transfer processes at the heating of combustible liquid was carried out at the interaction of hot small-size steel particle with gasoline. Developed mathematical model considers at two-dimensional statement thermal conduction, thermal convection, transfer of energy by phase change (evaporation of liquid fuel and crystallization of particle material), partial immersion of hot particle in liquid fuel, forming of vapor gap between hot particle and liquid fuel, diffusion of fuel vapors in oxidizer, dependence of thermophysical characteristics of interactive substances on temperature. It was established that the highest rates of heat and mass transfer processes in a system "hot particle -gasoline -air" are possible at temperature of hot particle higher than melting temperature of it material due to the additional heat released at the crystallization of material.

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Evaporation of a liquid droplet on a hot plate

Cited by 123 publications

References 9 publications

A Comprehensive Model for Liquid Film Boiling in Internal Combustion Engines

A Comprehensive Model for Liquid Film Boiling in Internal Combustion Engines

Liquid fuel ignition features during its spilling on the metallic substrate heated up to high temperatures

Mathematical modeling of heat and mass transfer processes at the ignition of a liquid condensed substance by an immersed hot particle

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