Counter-current
Optimal Counter current exchange networks
... Abstract – We construct a general analysis for counter-current exchange devices, linking their efficiency to the (potentially fractal) geometry of the exchange surface and supply network. For certain ...
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Process design and scale-up of counter-current chromatography for the fractionation and recovery of polyketide antibiotics
... For the successful integration o f CCC into new as well as existing and well established purification processes, the technology will need to meet a number o f criteria, such as ease o f method development (Chapter 4), ...
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CFD Simulation of a Counter-current Spray Drying Tower with Stochastic Treatment of Particle-wall Collision
... pilot-plant counter-current spray drying tower was carried out considering heat, mass and momentum transfer between the droplets/particles and the drying ...
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An experimental investigation of the swirling flow in a tall-form counter current spray dryer
... This work studies the air flow in a large swirl counter-current dryer using sonic anemometry. Air velocity and turbulence fields are reported at isothermal conditions and in the absence of particles. In a ...
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Rapid and Continuous Extraction of Methyl Red from Wastewater Using Counter Current Chromatography
... Coagulation, flocculation, oxidation or ozonation, membrane separation and activated carbon adsorption are known as the conventional methods for treating wastewater containing dyes [19]. Nowadays much attention has been ...
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On the role of the North Equatorial Counter Current during a strong El Niño
... Abstract. An analysis of archived data from the NEMO 1/12th degree global ocean model shows the importance of the North Equatorial Counter Current (NECC) in the devel- opment of the strong 1982–1983 and ...
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Agglomeration in counter-current spray drying towers. Part A: Particle growth and the effect of nozzle height
... Agglomeration of particles and droplets is critical to the operation of spray dryers, however it remains relatively unexplored. This paper studies the effect of the nozzle height on product properties, wall deposits and ...
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CFD modelling of a pilot-scale counter-current spray drying tower for the manufacture of detergent powder
... pilot-plant counter-current spray drying tower used for the manufacture of detergent power have been carried out allowing heat, mass and momentum exchanges between the discrete and the continuous phase and ...
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Influence of wall friction on flow regimes and scale-up of counter-current swirl spray dryers
... Visualisation studies were common to describe counter-current units (e.g. Paris et al., 1971; Sharma, 1990) but detailed air velocity data have only been obtained in laboratory (Bayly et al., 2004) or pilot ...
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Comparison of Co Current and Counter Current Flow Fields on Extraction Performance in Micro Channels
... We would like to avoid the least squares estimation of the mass transfer coefficient since this is a statistical procedure and involves fitting a parameter. For this the concentration profiles are determined solving the ...
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Modelling and simulation of counter-current and confined jet reactors for hydrothermal synthesis of nano-materials
... the counter-current reactor also caused less effective mixing in the reactor compared to the performance in the confined jet mixer with smaller tube ...
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Investigation Of Flame Stabilization In Counter Current Micro Combustors
... Combustion in micro-scale channels is possible. However, stabilizing flame in such narrow channel combustors is relatively difficult due to large heat losses and produce more heat that can be convert to electrical ...
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Vascular Anatomy of the Counter Current Heat Exchanger of Skipjack Tuna
... i Total number, cross-sectional area, blood volume and total inside surface area of the counter-current heat exchanger of a 1 9 kg skipjack tuna Number of vessels Cross-sectional area cm[r] ...
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Computational Investigation of Counter-Current Reactors in a Continuous Hydrothermal Flow Synthesis System for Reactor Design Improvement
... In this study, CFD was used to model the flow and temperature profiles in a counter- current reactor for synthesis of nanomaterials under ScW conditions. The predicted temperatures were compared with ...
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Investigatoin of a Method to Increase the Sensitivity of Counter-Current Immunoelectrophoresis Using Direct-Contact Photography
... Staining the the test CIE two by was ultraviolet performed dilutions serial formed precipitate produced when by the Amido 10B increased the film sensitivity by tion when to the film less[r] ...
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Dynamic modeling of a heat exchanger
... Usually a heat transfer surface separates the fluids in most of heat exchangers. The surface is in direct contact with the fluids and transfers the heat by conduction. The heat transfer between the surface and the bulk ...
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The Fatty Acids of Total Lipids and Cholesterol Esters from Normal Plasma and Atheromatous Plaques
... The fatty acids of the total lipids and the cholesterol esters of normal plasma and atheromatous plaques were investigated by counter-current distribution, determination of iodine value,[r] ...
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Application of Homotopy Perturbation Method to Nonlinear Equations Describing Cocurrent and Countercurrent Imbibition in Fractured Porous Media
... Since Eqs. 17, 18, 24 cannot be easily solved by analytical methods, these equations are therefore, solved by a numerical method applying software MATLAB using function pdepe. Values of saturation of water obtained by ...
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A Review Paper on Design and Simulation of Tubular Heat Exchanging Reactor for Coupling Exothermic and Endothermic Reactions
... configuration, where the endothermic and exothermic reactants are fed continuously to two different compartments directly exchanging energy. The dynamic reactor behavior is studied by detailed simulation for both reactor ...
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Recent developments in configuration design and optimization of mineral separation circuits; A Review
... proposed counter-current circuits, in which just the number of stages were different [4, 9-19]; some others have tried to find the best configuration with circuit modeling and through the consideration of ...
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