Numerical simulation of flow in superpak family packings

0499765 - ÚT 2019 RIV CZ eng C - Conference Paper (international conference)
Smutek, J. - Isoz, Martin
Numerical simulation of flow in superpak family packings.
Topical Problems of Fluid Mechanics 2018. Praha: Institue of Thermomechanics AS CR, 2018 - (Šimurda, D.; Bodnár, T.), s. 257-264. ISBN 978-80-87012-65-9. ISSN 2336-5781.
[Conference TOPICAL PROBLEMS OF FLUID MECHANICS 2018. Praha (CZ), 21.02.2018-23.02.2018]
R&D Projects: GA MŠMT(CZ) EF15_003/0000493
Grant - others:Ga MŠk(CZ) LM2015070
Institutional support: RVO:61388998
Keywords : CFD * OpenFOAM * structured packing * distillation * absorption
OECD category: Applied mechanics
http://www.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2018/35-TPFM2018.pdf

The distillation is currently the most energy-intensive technology of the chemical industry. Commonly, the distillation is performed in the columns lled with a structured packing. Structured packings are complex structures used to increase the size of the interface available for the mass transfer. Because of the high complexity of both the packings and the physical phenomena occurring during the distillation, the design of the distillation columns is still based mostly on empirical data. In this work, we concentrate on modeling the gas ow in the SuperPak family of structured packings. First, we propose an algorithm for automatic generation
of the packing geometry. Next, we construct and validate a three-dimensional computational uid dynamics (CFD) model of gas ow through SuperPak 250.Y and SuperPak 350.Y packings. The model validation is done by comparing experimental data of dry pressure losses to the values computed by our model. The obtained di erence between the CFD estimates and experiments is bellow 10 %. Finally, we present a parametric study of the SuperPak 250.Y packing geometry. The devised modeling approach may be easily automated and used for optimization of the SuperPak type packing geometry with respect to the gas ow. Furthermore,
the proposed CFD model may be extended to account for the multiphase ow.
Permanent Link: http://hdl.handle.net/11104/0292289