Cooling of a falling liquid film through interfacial heat and mass transfer

Tsay, Y.L.; Lin, T.F.; Yan, Wei‐Mon

doi:10.1016/0301-9322(90)90008-7

Cited by 53 publications

(15 citation statements)

References 13 publications

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“…Under this assumption, transport in the liquid film can be replaced by approximate boundary conditions for gas flow (Tsay et al [15]). • the boundary layer approximations are valid.…”

Section: Discussionmentioning

confidence: 99%

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Evaporation of a thin binary liquid film by forced convection into air and superheated steam

2010

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This paper deals with a numerical analysis of the evaporation of a thin binary liquid film by forced convection inside a channel constituted by two plates. The first plate is externally insulated and wetted by a thin water ethylene glycol film while the second is dry and isothermal. The first part is concerned with the effects of inlet ambiance conditions and the liquid concentration of ethylene glycol on the distribution of the velocity, temperature, concentrations profiles and the axial variation of the evaporation rate. The second part is focused on the inversion temperature point of the evaporation of binary liquid film. Results show that the inversion temperature phenomenon for the evaporation of binary liquid mixture is observed for high liquid concentration of ethylene glycol. The present results show that in the inlet temperature range considered here, the inversion temperature does not exit for the evaporation of pure ethylene glycol.

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“…Under this assumption, transport in the liquid film can be replaced by approximate boundary conditions for gas flow (Tsay et al [15]). • the boundary layer approximations are valid.…”

Section: Discussionmentioning

confidence: 99%

“…Thermo-physical properties of gas mixture are considered as variable with temperature and concentration. The correlations used in this study were given in Tsay et al [15] for viscosity, heat capacity and mass diffusion coefficients and in Missenard [16] for thermal conductivity.…”

Section: Discussionmentioning

confidence: 99%

Evaporation of a thin binary liquid film by forced convection into air and superheated steam

2010

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“…As far as the evaporation of other pure liquids films was concerned, Tsay et al (1990) undertook a numerical and experimental study of cooling wall by using an ethanol film on a vertical plate in the presence of a co-current gas flow. It was observed that the interfacial heat flux is predominantly determined by latent heat transfer connected with film evaporation, and significant results are obtained for the system with a high inlet liquid temperature or a low inlet liquid film.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Heat and Mass Transfer in the Evaporation of Glycols Liquid Film along an Insulated Vertical Channel

Alla¹,

Feddaoui²,

Meftah³

2015

AJHMT

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A numerical study is reported to investigate the evaporation in mixed convection of a pure glycol liquid film such as ethylene and propylene glycol. The model solves the coupled governing equations in both phases together with the boundary and interfacial conditions. The systems of equations obtained by using an implicit finite difference method are solved by TDMA method. The influence of inlet temperature of liquid film and inlet pressure in the gas flow are examined. The results indicate that the propylene glycol evaporates in more intense way in comparison to ethylene glycol, due to the volatility difference. Additionally, In the operating system, the heat transfer by sensible mode is more important than latent mode.

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“…In the first works such as [ 12] and [6], the liquid film is supposed to be steady. The film flow has been modelled over a vertical wall in a mono-dimensional [13] or partly bi-dimensional approach [14] or over an inclined wall in a bi-dimensionai approach [2,5,8]. The study of the evaporation process is made more difficult by the consideration of the heat and mass transfer in the liquid film, especially in the bi-dimensional case.…”

Section: Introductionmentioning

confidence: 99%