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Countercurrent exchange

About: Countercurrent exchange is a research topic. Over the lifetime, 2255 publications have been published within this topic receiving 28687 citations. The topic is also known as: Countercurrent exchange.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the two-phase friction factor and frictional pressure drop are predicted by means of an equivalent Reynolds number model and the importance of using the alternative void fraction and friction factor models and correlations for the separated flow model is also addressed.

12 citations

Patent
03 Sep 2004
TL;DR: The supercavitation molecular reactor as mentioned in this paper allows to build up or disintegrate or modify, with low expenditure in terms of energy, even complex compounds that so far have not been accessible to modification and/or production or only by very extensive multiple processes and a large amount of technical complexity.
Abstract: The invention relates to a device for the molecular integration or disintegration of solid, liquid and/or gaseous flowing, entrained and/or countercurrent components by means of cavitation in order to modify, build or disintegrate molecular compounds. The invention allows to obtain stable mixtures from immiscible or difficult-to-mix components or to separate such mixtures. The supercavitation molecular reactor allows to build up or disintegrate or modify, with low expenditure in terms of energy, even complex compounds that so far have not been accessible to modification and/or production or only by very extensive multiple processes and a large amount of technical complexity.

12 citations

Journal ArticleDOI
TL;DR: The dynamic behavior of ozonation with pollutants in a countercurrent bubble column is studied for the model establishment and the dynamic axial dispersion model proposed is employed to predict the variation of the ozone, pollutant, and oxygen concentrations profiles.

12 citations

Journal ArticleDOI
TL;DR: In this article, a servocontrol system consisting of a video system that digitizes particle position in a viewing window and a centrifugal pump that can control the speed of the countercurrent flow in order to maintain the particle within the observation window of a charge-coupled device camera is presented.
Abstract: An apparatus that permits the observation of liquid CO2 particles in a simulated deep-ocean environment was designed, modeled, constructed, and tested. Analysis concerning the vertical stability and control of the fluid particle in a countercurrent flow loop is presented. The vertical position of the particle was found to vary due to the gradual dissolution of the CO2 into the water and various other random effects. Using linearized equations for spherical particle motion in the fluid flow, a second-order dynamic equation is derived and analyzed. The servocontrol system consists of a video system that digitizes particle position in a viewing window and a centrifugal pump that can control the speed of the countercurrent flow in order to maintain the particle within the observation window of a charge-coupled device camera. Currently, the system is being used to obtain information on the dissolution behavior of CO2 in seawater at various conditions of pressure and temperature that simulate ocean depths down ...

12 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202358
2022115
202127
202041
201947
201849