Journal ArticleDOI
A theoretical correlation for the Nusselt number in direct contact evaporation of a moving drop in an immiscible liquid
P. Battya,Vasudevan Raghavan,Kankanhalli N. Seetharamu +2 more
- Vol. 19, Iss: 1, pp 61-66
TLDR
In this paper, numerical solutions for the Nusselt number during the direct contact evaporation of a moving drop in a stagnant column of immiscible liquid are presented.Abstract:
Numerical solutions for the Nusselt number during the direct contact evaporation of a moving drop in a stagnant column of immiscible liquid are presented. The effect of bubble growth rate on the radial component of drop velocity is taken into account in the analysis and the Nusselt number is found to be a function of Peclet number, Jakob number and vapour open angle. A comparison of theoretical and experimental correlations for the Nusselt number shows good agreement. The analysis also yields information on the temperature profile and the thickness of the thermal boundary layer surrounding the evaporating drop.read more
Citations
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Journal ArticleDOI
Review on physical and performance parameters of heat recovery systems for building applications
A. Mardiana,Saffa Riffat +1 more
TL;DR: In this paper, the physical and performance parameters of heat recovery unit and the significances of these parameters on operation and efficiency of the system are discussed and discussed in order to have an insight into existing knowledge leading to understanding of previous works.
Journal ArticleDOI
Evaporation of single liquid drops in an immiscible liquid at elevated pressures: experimental study with n-pentane and R 113 drops in water
Yasushi Shimizu,Yasuhiko H. Mori +1 more
TL;DR: In this article, the authors dealt with direct contact evaporation of single liquid drops in a stagnant medium of an immiscible liquid under moderately elevated pressures. But their experiments were performed with n-pentane and R 113 drops injected into water under pressures of up to 0.48 MPa.
Journal ArticleDOI
Direct-contact heat transfer of a single volatile liquid drop evaporation in an immiscible liquid
TL;DR: In this article, a semi-analytical approach was presented to study the transient heat transfer of a single volatile drop evaporation in an immiscible liquid with bubble nucleation inside the drop.
Book ChapterDOI
Direct-contact transfer processes with moving liquid droplets
TL;DR: In this article, the main emphasis is on convective flow effects and analytical or numerical studies of direct contact transfer phenomena, rather than the experimental aspects or the specifics of the design of direct-contact transfer systems.
Journal ArticleDOI
Direct contact evaporation heat transfer coefficient and drobble size distribution in a 2D column
TL;DR: In this article, an experimental study of the n-pentane evaporation process in hot water to investigate the behavior of drobbles and the performance of direct contact heat transfer is presented.
References
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Journal ArticleDOI
Direct-contact heat transfer with change of phase: Evaporation of drops in an immiscible liquid medium
Samuel Sideman,Yehuda Taitel +1 more
TL;DR: The transfer characteristics of volatile liquid drops evaporating while rising in a column of immiscible liquid are presented in this paper, where a study of cine-camera films taken during the heat-transfer process rendered information regarding the velocities and evaporation rates of butane and pentane drops.
Book ChapterDOI
Direct Contact Heat Transfer Between Immiscible Liquids
TL;DR: In this paper, heat transfer to drops moving in a constant-temperature field and continuously varying temperature field is discussed, and three models are taken into account: rigid drop, completely mixed drop, and drop with internal circulation.
Journal ArticleDOI
Evaporation of butane drops in brine
TL;DR: In this paper, an investigation was carried out into the evaporation of butane droplets in a vertical column of water or brine, and measurements were made of bubble velocity and bubble growth rate.
Journal ArticleDOI
Vaporization of single liquid drops in an immiscible liquid Part I: Forms and motions of vaporizing drops
TL;DR: In this article, the instantaneous velocity of rise of two-phase bubbles agreed approximately with Stokes' theory in the range Re < 1, and the liquid-liquid interfacial area takes almost a constant value slightly higher than the initial surface area of the liquid drop, and then reduces gradually.
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