Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor

Y. Hassan; E. Dominguez-Ontiveros; C. Estrada-Perez

doi:10.1063/1.2747411

Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor

Y. Hassan, E. Dominguez-Ontiveros, C. Estrada-Perez

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

The aim of this work is to present the progress of experimental approaches used to investigate the flow pattern towards mass and heat transfer phenomena within a packed bed. Most of the studies on packed beds consider the porous medium approach to obtain lumped parameters from which bulk characteristics of the flow are determined. This conventional approach neglects the complex flow details within individual pores and constrictions, thus obscuring the physical basis of the model. The experimental approach presented uses Particle Image Velocimetry (PIV) and Matching Refractive Index (MRI) techniques to obtain velocity measurements within a packed bed at the microscopic (pore) level. To completely understand and describe the physical process occurring within the system, local information is required. The main results of velocity measurements for single and two-phase flow conditions are presented under various flow conditions with Reynolds numbers ranging between 50 and 500, based on particle diameter. The results show evidence of various recirculation zones within the pores. Measurements of flow path within a single pore show considerable changes under two-phase flow conditions. Vortex identification at various pore locations exhibits the need for consideration of additional parameters in the models to accurately describe flow structure in a packed bed.

Original language	English
Title of host publication	MULTIPHASE FLOW
Subtitle of host publication	THE ULTIMATE MEASUREMENT CHALLENGE - Proceedings of the 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Proces
Pages	37-59
Number of pages	23
DOIs	https://doi.org/10.1063/1.2747411
State	Published - 2007
Externally published	Yes
Event	5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Process Tomography, IWPT-2 - Macau, China Duration: Dec 10 2006 → Dec 13 2006

Publication series

Name	AIP Conference Proceedings
Volume	914
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Process Tomography, IWPT-2
Country/Territory	China
City	Macau
Period	12/10/06 → 12/13/06

Keywords

Matching Refractive Index
Microscopic.
PIV
Packed Bed
Pore level

Access to Document

10.1063/1.2747411

Cite this

Hassan, Y., Dominguez-Ontiveros, E., & Estrada-Perez, C. (2007). Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor. In MULTIPHASE FLOW: THE ULTIMATE MEASUREMENT CHALLENGE - Proceedings of the 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Proces (pp. 37-59). (AIP Conference Proceedings; Vol. 914). https://doi.org/10.1063/1.2747411

Hassan, Y. ; Dominguez-Ontiveros, E. ; Estrada-Perez, C. / Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor. MULTIPHASE FLOW: THE ULTIMATE MEASUREMENT CHALLENGE - Proceedings of the 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Proces. 2007. pp. 37-59 (AIP Conference Proceedings).

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abstract = "The aim of this work is to present the progress of experimental approaches used to investigate the flow pattern towards mass and heat transfer phenomena within a packed bed. Most of the studies on packed beds consider the porous medium approach to obtain lumped parameters from which bulk characteristics of the flow are determined. This conventional approach neglects the complex flow details within individual pores and constrictions, thus obscuring the physical basis of the model. The experimental approach presented uses Particle Image Velocimetry (PIV) and Matching Refractive Index (MRI) techniques to obtain velocity measurements within a packed bed at the microscopic (pore) level. To completely understand and describe the physical process occurring within the system, local information is required. The main results of velocity measurements for single and two-phase flow conditions are presented under various flow conditions with Reynolds numbers ranging between 50 and 500, based on particle diameter. The results show evidence of various recirculation zones within the pores. Measurements of flow path within a single pore show considerable changes under two-phase flow conditions. Vortex identification at various pore locations exhibits the need for consideration of additional parameters in the models to accurately describe flow structure in a packed bed.",

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Hassan, Y, Dominguez-Ontiveros, E & Estrada-Perez, C 2007, Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor. in MULTIPHASE FLOW: THE ULTIMATE MEASUREMENT CHALLENGE - Proceedings of the 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Proces. AIP Conference Proceedings, vol. 914, pp. 37-59, 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Process Tomography, IWPT-2, Macau, China, 12/10/06. https://doi.org/10.1063/1.2747411

Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor. / Hassan, Y.; Dominguez-Ontiveros, E.; Estrada-Perez, C.
MULTIPHASE FLOW: THE ULTIMATE MEASUREMENT CHALLENGE - Proceedings of the 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Proces. 2007. p. 37-59 (AIP Conference Proceedings; Vol. 914).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Dominguez-Ontiveros, E.

AU - Estrada-Perez, C.

PY - 2007

Y1 - 2007

N2 - The aim of this work is to present the progress of experimental approaches used to investigate the flow pattern towards mass and heat transfer phenomena within a packed bed. Most of the studies on packed beds consider the porous medium approach to obtain lumped parameters from which bulk characteristics of the flow are determined. This conventional approach neglects the complex flow details within individual pores and constrictions, thus obscuring the physical basis of the model. The experimental approach presented uses Particle Image Velocimetry (PIV) and Matching Refractive Index (MRI) techniques to obtain velocity measurements within a packed bed at the microscopic (pore) level. To completely understand and describe the physical process occurring within the system, local information is required. The main results of velocity measurements for single and two-phase flow conditions are presented under various flow conditions with Reynolds numbers ranging between 50 and 500, based on particle diameter. The results show evidence of various recirculation zones within the pores. Measurements of flow path within a single pore show considerable changes under two-phase flow conditions. Vortex identification at various pore locations exhibits the need for consideration of additional parameters in the models to accurately describe flow structure in a packed bed.

AB - The aim of this work is to present the progress of experimental approaches used to investigate the flow pattern towards mass and heat transfer phenomena within a packed bed. Most of the studies on packed beds consider the porous medium approach to obtain lumped parameters from which bulk characteristics of the flow are determined. This conventional approach neglects the complex flow details within individual pores and constrictions, thus obscuring the physical basis of the model. The experimental approach presented uses Particle Image Velocimetry (PIV) and Matching Refractive Index (MRI) techniques to obtain velocity measurements within a packed bed at the microscopic (pore) level. To completely understand and describe the physical process occurring within the system, local information is required. The main results of velocity measurements for single and two-phase flow conditions are presented under various flow conditions with Reynolds numbers ranging between 50 and 500, based on particle diameter. The results show evidence of various recirculation zones within the pores. Measurements of flow path within a single pore show considerable changes under two-phase flow conditions. Vortex identification at various pore locations exhibits the need for consideration of additional parameters in the models to accurately describe flow structure in a packed bed.

KW - Matching Refractive Index

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KW - Packed Bed

KW - Pore level

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ER -

Hassan Y, Dominguez-Ontiveros E, Estrada-Perez C. Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor. In MULTIPHASE FLOW: THE ULTIMATE MEASUREMENT CHALLENGE - Proceedings of the 5th International Symposium on Measurement Techniques for Multiphase Flows, 5th ISMTMF and 2nd International Workshop on Proces. 2007. p. 37-59. (AIP Conference Proceedings). doi: 10.1063/1.2747411

Dynamic non-obstructed particle image velocimetry measurements inside a packed bed reactor

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Keywords

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