Topic
Mass transfer coefficient
About: Mass transfer coefficient is a research topic. Over the lifetime, 7827 publications have been published within this topic receiving 168354 citations.
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TL;DR: In this article, the theoretical limit of Sherwood number 2 for spherical particles suspended in stirred tanks was confirmed, which is the first systematic experimental confirmation that the theory is valid for spherical particle suspensions.
190 citations
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TL;DR: An effective adsorbent is developed from saw dust and its various adsorption characteristics are studied for removing a basic dye from its aqueous solution to observe the sensitivity of the model to the variations in the model parameters.
188 citations
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TL;DR: In this paper, empirical correlations for the prediction of mass transfer coefficients for single drops are presented, and the average absolute value of the relative error in the predicted values of overall dispersed-phase mass transfer coefficient from the experimental points by using the correlations for individual masstransfer coefficients is 24.5%.
Abstract: Empirical correlations for the prediction of mass transfer coefficients for single drops are presented. Published experimental results for both circulating and oscillating drops are considered. Correlation for the individual continuous-phase mass transfer coefficient, which is based on data from 596 measurements taken from 10 different groups of investigators, reproduces the data with an average absolute error of 14.1%. This is then used to determine a correlating equation for the individual dispersed-phase mass transfer coefficient on the basis of data for overall dispersed-phase mass transfer coefficient taken from 21 sources. The average absolute value of the relative error in the predicted values of overall dispersed-phase mass transfer coefficient from the experimental points by using the correlations for individual mass transfer coefficients is 24.5%. It is further shown that by allowing for the effects of power input per unit mass and dispersed-phase hold-up, the correlations for single drops can be extended to extraction columns. The correction factors required for this purpose have been obtained by using simulated values of overall mass transfer coefficients for pulsed perforated-plate, Karr reciprocating-plate, Kuhni, and rotating disc columns.
187 citations
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TL;DR: In this paper, the heat and mass transfer characteristics in a viscous fluid which is squeezed between parallel plates are reported, and the governing partial differential equations for unsteady two-dimensional flow with heat-and mass-transfer characteristics are reduced to ordinary differential equations by similarity transformations.
Abstract: This paper reports the heat and mass transfer characteristics in a viscous fluid which is squeezed between parallel plates. The governing partial differential equations for unsteady two-dimensional flow with heat and mass transfer of a viscous fluid are reduced to ordinary differential equations by similarity transformations. Homotopy analysis method (HAM) is employed to construct the series solution of the problem. Physical interpretation to various embedding parameters is assigned through graphs for temperature and concentration profiles and tables for skin friction coefficient, local Nusselt number and local Sherwood number.
186 citations
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TL;DR: In this paper, a new type of transfer cell has been designed and used for the determination of the individual mass transfer coefficients, by the Colburn-Welsh technique, for eight partially miscible binary systems, in six of which one of the phases was water.
186 citations