LAPSE:2020.1086
Published Article
LAPSE:2020.1086
Pulsed Multiphase Flows—Numerical Investigation of Particle Dynamics in Pulsating Gas−Solid Flows at Elevated Temperatures
Arne Teiwes, Maksym Dosta, Michael Jacob, Stefan Heinrich
November 9, 2020
Although the benefits of pulsating multiphase flows and the concomitant opportunity to intensify heat and mass transfer processes for, e.g., drying, extraction or chemical reactions have been known for some time, the industrial implementation is still limited. This is particularly due to the lack of understanding of basic influencing factors, such as amplitude and frequency of the pulsating flow and the resulting particle dynamics. The pulsation generates oscillation of velocity, pressure, and temperature, intensifying the heat and mass transfer by a factor of up to five compared to stationary gas flow. With the goal of process intensification and targeted control of sub-processes or even the development of completely new processing routes for the formation, drying or conversion of particulate solids in pulsating gas flows as utilized in, e.g., pulse combustion drying or pulse combustion spray pyrolysis, the basic understanding of occurring transport processes is becoming more and more important. In the presented study, the influence of gas-flow conditions and particle properties on particle dynamics as well as particle residence time and the resulting heat and mass transfer in pulsating gas−solid flows are investigated.
Keywords
gas pulsation, gas–solid processes, heat and mass transfer, particle dynamics, spray processes
Suggested Citation
Teiwes A, Dosta M, Jacob M, Heinrich S. Pulsed Multiphase Flows—Numerical Investigation of Particle Dynamics in Pulsating Gas−Solid Flows at Elevated Temperatures. (2020). LAPSE:2020.1086
Author Affiliations
Teiwes A: Glatt Ingenieurtechnik GmbH, 99427 Weimar, Germany
Dosta M: Institute of Solids Process Engineering and Particle Technology, Hamburg University of Technology, 21073 Hamburg, Germany [ORCID]
Jacob M: Glatt Ingenieurtechnik GmbH, 99427 Weimar, Germany
Heinrich S: Institute of Solids Process Engineering and Particle Technology, Hamburg University of Technology, 21073 Hamburg, Germany [ORCID]
Journal Name
Processes
Volume
8
Issue
7
Article Number
E815
Year
2020
Publication Date
2020-07-10
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8070815, Publication Type: Journal Article
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LAPSE:2020.1086
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doi:10.3390/pr8070815
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Nov 9, 2020
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Calvin Tsay
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