CFD modeling of bubble columns flows: implementation of population balance

Chen, P.; Sanyal, Jay; Duduković, Milorad P.

doi:10.1016/j.ces.2004.07.037

Cited by 138 publications

(80 citation statements)

References 17 publications

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“…When the model is applied on a pilot plant column (of the same diameter as the cold flow model) for methanol synthesis, both gas phase and liquid phase tracer responses are well predicted at seven different elevations in the hot operating pilot plant column. The same is shown to be true for FT and DME synthesis Pan et al, 1999;Gupta et al, 2001a,b;Chen et al, 2004Chen et al, , 2005. The model is not yet fully predictive at this stage as the CARPT, CT data were obtained on the equipment of the same diameter, and holdup profile was experimentally 260 M. P. Dudukovic determined.…”

Section: Innovations In Vertical Scaleupmentioning

confidence: 89%

Challenges and Innovations in Reaction Engineering

Duduković

2008

Chemical Engineering Communications

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The importance of reaction engineering in generating a myriad of products on which developed societies depend is outlined. The challenges of a political, economic, and technical nature that need to be addressed in rendering conversion of raw materials into desired products that are more environmentally friendly and sustainable are briefly discussed. It is shown that multiphase reactors are prevalent in all applications, and improvements in the reactor material and energy efficiencies lead to more environmentally benign processes. This requires, in addition to the selection of green process chemistry, systematic implementation of the multi-scale reaction engineering methodology to accomplish proper reactor type selection and scaleup for commercial applications. It is also illustrated that recent innovations in multiphase reaction engineering basically utilize two key concepts: process intensification (e.g., enhancement in mass and heat transfer rates) and simultaneous reaction and separation. Examples of these are discussed, such as micro-reactors, reactive distillation, etc. It is also shown that commercialization of bench-scale discoveries requires either scaleup in parallel or vertical scaleup. New tools for visualization of opaque multiphase flows and development of appropriate rational phenomenological multiphase reactor models for scaleup and design are also briefly discussed.

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Section: Innovations In Vertical Scaleupmentioning

confidence: 89%

Challenges and Innovations in Reaction Engineering

Duduković

2008

Chemical Engineering Communications

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“…Although some papers [22][23][24] have researched the theoretical model for bubble breakup and coalesce in turbulent flow. These models only were applied to the bubble columns, and that were in the perspective of statistics.…”

Section: Analysis Of Two-phase Flow and Bubbles Behavior In A Continumentioning

confidence: 99%

Analysis of Two-Phase Flow and Bubbles Behavior in a Continuous Casting Mold Using a Mathematical Model Considering the Interaction of Bubbles

et al. 2016

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“…This includes forces such as drag, lift and the virtual mass force acting on phase i from all other phases. In the present work, only the contribution from the drag force was considered for the interphase force term and the other two forces were neglected, same as Chen et al (2004). The interphase drag force can be written as:…”

Section: Flow Equationsmentioning

confidence: 99%

“…Multiphase Eulerian-Eulerian flow equations coupled to a Population Balance Equation (PBE) have been used by many to model polydispersed flow systems in the last decade (Chen et al, 2004;Bannari et al, 2008;Buffo et al, 2012). PBE, which is a conservation equation for the dispersed particles, is used to model the evolution of the particle size distribution (Ramkrishna, 2000).…”

Section: Introductionmentioning

confidence: 99%

Polydispersed flow modelling using population balances in an adaptive mesh finite element framework

Bhutani

Brito-Parada

Cilliers

2016

Computers & Chemical Engineering

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An open-source finite element framework to model multiphase polydispersed flows is presented in this work. The Eulerian-Eulerian method was coupled to a population balance equation and solved using a highly-parallelised finite element code-Fluidity. The population balance equation was solved using DQMOM. A hybrid finite element-control volume method for solving the coupled system of equations was established. To enhance the efficiency of this solver, fully-unstructured non-homogeneous anisotropic mesh adaptivity was applied to systematically adapt the mesh based on the underlying physics of the problem. This is the first time mesh adaptivity has been applied to the external coordinates of the population balance equation for modelling polydispersed flows. Rigorous model verification and benchmarking were also performed to demonstrate the accuracy of this implementation. This finite element framework provides an efficient alternative to model polydispersed flow problems over the other available finite volume CFD packages.

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CFD modeling of bubble columns flows: implementation of population balance

Cited by 138 publications

References 17 publications

Challenges and Innovations in Reaction Engineering

Challenges and Innovations in Reaction Engineering

Analysis of Two-Phase Flow and Bubbles Behavior in a Continuous Casting Mold Using a Mathematical Model Considering the Interaction of Bubbles

Polydispersed flow modelling using population balances in an adaptive mesh finite element framework

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