Journal ArticleDOI
Heat transfer phenomenon in the region of dispersed phase injection in a direct-contact liquid-liquid heat exchanger
TLDR
In this paper, a novel temperature measurement technique integrated with a high-speed data acquisition system allowed temperature distributions to be obtained in droplets rising in a liquid-liquid, direct-contact heat exchanger.About:
This article is published in International Communications in Heat and Mass Transfer.The article was published on 1983-05-01. It has received 3 citations till now. The article focuses on the topics: Plate fin heat exchanger & Plate heat exchanger.read more
Citations
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Journal ArticleDOI
On the temperature jump in liquid-liquid direct-contact heat exchangers
Grant Johnson,Ekkehard Marschall +1 more
TL;DR: In this article, experimental results on the flow mechanism of the dispersed phase during drop formation and release in a liquid-liquid system are presented, where strong circulation patterns during the formation of a liquid liquid system, the possible turbulent flow conditions and the mixing in the rest drop encountered in the experiments provide a qualitative explanation for the high heat and mass transfer rates which have been consistently found in experimental investigations.
Journal ArticleDOI
Improved photochronic flow visualization technique
T Mcwaid,Ekkehard Marschall +1 more
TL;DR: In this paper, a photochromic flow visualization technique has been modified so as to allow the study of liquid-liquid interfaces, which has been shown to behave in a totally rigid manner.
A numerical investigation of performance and optimization trends of direct contact heat exchangers
TL;DR: In this paper, a numerical model has been developed that can be used for industrial design of a wide range of direct contact heat exchangers (DCHXs), which is built from some earlier work where a one-dimensional model was used to describe some specific and limited DCHX spray-column configurations.
References
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Journal ArticleDOI
Circulation in liquid drops: (A heat-transfer study)
TL;DR: In this article, it was shown that circulation within a liquid drop results in an effective mass or thermal diffusivity of 2·25 times the molecular value, which is in general agreement with much reported work and with the mathematical model of K ronig and B rink which applies to liquid drops undergoing internal circulation.
Journal ArticleDOI
Dispersed phase mass transfer during drop formation and coalescence in liquid-liquid extraction
TL;DR: In this article, the authors investigated the rate of mass transfer during drop formation and coalescence for three phase-controlled liquid systems, one binary (ethyl acetate-water) and two ternary (acetic acid-chlorobenzene-water and acetic acid 50% by volume mixture of carbon tetrachloride and nujol-water).
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The mechanism of heat transfer in a spray column heat exchanger
Ruth Letan,Ephraim Kehat +1 more
TL;DR: In this article, temperature profiles of dispersed kerosene and water were measured in a spray column heat exchanger, 15 cm. in diameter and 160 cm. long, and they were used to calculate the volume of the wakes and the rate of shedding of wake elements.
Journal ArticleDOI
The mechanism of mass transfer during formation, release and coalescence of drops. Part I—Mass transfer to drops formed at a moderate speed
P.M. Heertjes,L.H. de Nie +1 more
TL;DR: In this article, a model for the behavior of different parts of a drop during formation and release has been proposed and a comparison has been made between the growing of a dropping by stretching of the surface or by addition of fresh surface elements.
Journal ArticleDOI
Liquid-Liquid Direct-Contact Heat Transfer in a Spray Column
L. L. Moresco,E. Marschall +1 more