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Article

Computation of Global and Local Mass Transfer in Hollow Fiber Membrane Modules

1
Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna 1060, Austria
2
CCORE Technology GmbH, 1040 Vienna, Austria
3
Institute of Engineering Design and Product Development, TU Wien, Vienna 1060, Austria
4
Department of Anaesthesia, Critical Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(6), 2207; https://doi.org/10.3390/su12062207
Received: 31 January 2020 / Revised: 10 March 2020 / Accepted: 11 March 2020 / Published: 12 March 2020
(This article belongs to the Special Issue Process Integration and Optimisation for Sustainable Systems)
Computational fluid dynamics (CFD) provides a flexible tool for investigation of separation processes within membrane hollow fiber modules. By enabling a three-dimensional and time dependent description of the corresponding transport phenomena, very detailed information about mass transfer or geometrical influences can be provided. The high level of detail comes with high computational costs, especially since species transport simulations must discretize and resolve steep gradients in the concentration polarization layer at the membrane. In contrast, flow simulations are not required to resolve these gradients. Hence, there is a large gap in the scale and complexity of computationally feasible geometries when comparing flow and species transport simulations. A method, which tries to cover the mentioned gap, is presented in the present article. It allows upscaling of the findings of species transport simulations, conducted for reduced geometries, on the geometrical scales of flow simulations. Consequently, total transmembrane transport of complete modules can be numerically predicted. The upscaling method does not require any empirical correlation to incorporate geometrical characteristics but solely depends on results acquired by CFD flow simulations. In the scope of this research, the proposed method is explained, conducted, and validated. This is done by the example of CO2 removal in a prototype hollow fiber membrane oxygenator. View Full-Text
Keywords: computational fluid dynamics (CFD); blood oxygenator; carbon dioxide (CO2) removal; membrane separation; solution diffusion model; OpenFOAM®; membraneFoam; validation; transmembrane transport prediction computational fluid dynamics (CFD); blood oxygenator; carbon dioxide (CO2) removal; membrane separation; solution diffusion model; OpenFOAM®; membraneFoam; validation; transmembrane transport prediction
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MDPI and ACS Style

Lukitsch, B.; Ecker, P.; Elenkov, M.; Janeczek, C.; Haddadi, B.; Jordan, C.; Krenn, C.; Ullrich, R.; Gfoehler, M.; Harasek, M. Computation of Global and Local Mass Transfer in Hollow Fiber Membrane Modules. Sustainability 2020, 12, 2207. https://doi.org/10.3390/su12062207

AMA Style

Lukitsch B, Ecker P, Elenkov M, Janeczek C, Haddadi B, Jordan C, Krenn C, Ullrich R, Gfoehler M, Harasek M. Computation of Global and Local Mass Transfer in Hollow Fiber Membrane Modules. Sustainability. 2020; 12(6):2207. https://doi.org/10.3390/su12062207

Chicago/Turabian Style

Lukitsch, Benjamin, Paul Ecker, Martin Elenkov, Christoph Janeczek, Bahram Haddadi, Christian Jordan, Claus Krenn, Roman Ullrich, Margit Gfoehler, and Michael Harasek. 2020. "Computation of Global and Local Mass Transfer in Hollow Fiber Membrane Modules" Sustainability 12, no. 6: 2207. https://doi.org/10.3390/su12062207

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