| Magnetic resonance velocity imaging of liquid and gas two-phase flow in packed beds. | |
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MedLine Citation:
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PMID: 19059796 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Single-phase liquid flow in porous media such as bead packs and model fixed bed reactors has been well studied by MRI. To some extent this early work represents the necessary preliminary research to address the more challenging problem of two-phase flow of gas and liquid within these systems. In this paper, we present images of both the gas and liquid velocities during stable liquid-gas flow of water and SF(6) within a packing of 5mm spheres contained within columns of diameter 40 and 27 mm; images being acquired using (1)H and (19)F observation for the water and SF(6), respectively. Liquid and gas flow rates calculated from the velocity images are in agreement with macroscopic flow rate measurements to within 7% and 5%, respectively. In addition to the information obtained directly from these images, the ability to measure liquid and gas flow fields within the same sample environment will enable us to explore the validity of assumptions used in numerical modelling of two-phase flows. |
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Authors:
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M H Sankey; D J Holland; A J Sederman; L F Gladden |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-11-14 |
Journal Detail:
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Title: Journal of magnetic resonance (San Diego, Calif. : 1997) Volume: 196 ISSN: 1096-0856 ISO Abbreviation: J. Magn. Reson. Publication Date: 2009 Feb |
Date Detail:
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Created Date: 2009-01-26 Completed Date: 2009-05-15 Revised Date: 2009-11-04 |
Medline Journal Info:
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Nlm Unique ID: 9707935 Medline TA: J Magn Reson Country: United States |
Other Details:
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Languages: eng Pagination: 142-8 Citation Subset: IM |
Affiliation:
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Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, UK. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acetylene
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chemistry Aluminum Oxide Butanes / chemistry Catalysis Fluorine Gases / chemistry* Hydrogen Kinetics Liquid Crystals / chemistry* Magnetic Resonance Imaging / methods* Propane / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Butanes; 0/Gases; 106-97-8/butane; 1333-74-0/Hydrogen; 1344-28-1/Aluminum Oxide; 74-86-2/Acetylene; 74-98-6/Propane; 7782-41-4/Fluorine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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