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Gas‐Liquid Mass Transfer Rates and Impeller Power Consumptions for Industrial Vessel Design
Author(s) -
Labík Libor,
Moucha Tomáš,
Kordač Michal,
Rejl František J.,
Valenz Lukáš
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201500209
Subject(s) - impeller , mass transfer , coalescent theory , contactor , mechanics , range (aeronautics) , mass transfer coefficient , scale (ratio) , nuclear engineering , dissipation , radius , power (physics) , reliability (semiconductor) , environmental science , materials science , engineering , process engineering , thermodynamics , chemistry , computer science , physics , aerospace engineering , biochemistry , computer security , quantum mechanics , gene , phylogenetic tree
Abstract Volumetric mass transfer coefficients ( k L a ) and power input ( P ) are often the key parameters in the design of gas‐liquid contactors. However, due to the limitations of most measurement methods, there is a lack of reliable data for predicting k L a for non‐coalescent batches under high energy dissipation rates. Accurate k L a and P correlations are proposed. The reliability of the correlations is ensured by using experimental data from a wide range of process conditions conducted in multiple‐impeller vessels of both laboratory scale and pilot scale, and including both non‐coalescent and coalescent batches. Applying the proposed correlations, the scale‐up and optimization of industrial vessels can be performed more accurately.