Topic
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.
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TL;DR: In this paper, the void fraction of R134a condensing inside a vertical smooth tube is experimentally investigated and the effect of void fraction alteration on the momentum pressure drop is also presented.
46 citations
TL;DR: A mathematical model was developed and experimentally verified over a wide range of operating conditions for synthetic air and helium-nitrogen mixtures by measuring pressure, flow rate, and concentration profiles on the permeate side of the hollow fiber as discussed by the authors.
Abstract: A mathematical model was developed and experimentally verified over a wide range of operating conditions for synthetic air and helium-nitrogen mixtures by measuring pressure, flow rate, and concentration profiles on the permeate side of the hollow fiber. Both countercurrent and cocurrent flow patterns are used, and the effect of permeate side radial mixing was examined
45 citations
45 citations
TL;DR: In this article, the effects of a countercurrent gas flow and liquid feeding length on falling-film mode transitions for a liquid flowing over horizontal tubes were explored. And a correlation was developed to predict the countercurrent flow effects on falling film mode transitions.
45 citations
TL;DR: In this paper, the authors analyzed the simultaneous heat and mass transfer between air and soybean seeds in countercurrent and concurrent moving bed dryers by simulation, which was based on modeling from mass and energy conservation equations for the fluid and particulate phases.
Abstract: The aim of this work was to analyze the simultaneous heat and mass transfer between air and soybean seeds in countercurrent and concurrent moving bed dryers by simulation. The technique chosen was based on modeling from mass and energy conservation equations for the fluid and particulate phases. The equilibrium, heat transfer and mass transfer equations were taken from specific studies. The equation representing drying kinetics was obtained by means of a thin-layer study, whereas the equilibrium equations was chosen from rival model discrimination, based on nonlinearity measures. Hence, the model parameters were defined by the respectives studies. The profiles for temperature and humidity of the fluid and the temperature and moisture of the seeds were obtained by numerical solution of the model. This model consisted of ordinary differential equations and the solution was obtained by a specific code. The simulated results indicated a significant.
45 citations