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TECHNICAL PAPERS

Transient Pig Motion Through Gas and Liquid Pipelines

[+] Author and Article Information
A. O. Nieckele, A. M. B. Braga, L. F. A. Azevedo

Department of Mechanical Engineering, Pontifı́cia Universidade Católica, 22453-900 Rio de Janeiro, Brazil

J. Energy Resour. Technol 123(4), 260-269 (Jun 07, 2001) (10 pages) doi:10.1115/1.1413466 History: Received November 03, 2000; Revised June 07, 2001
Copyright © 2001 by ASME
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References

Figures

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Schematic view of a cleaning pig
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Control volume for unsteady, one-dimensional flow analysis
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Finite element model for the nonlinear postbuckling analysis
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Disk geometry and material data
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Postbuckling responses for disk A considering two different values for the friction coefficient
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Results of driving pressure measurement for a pig with two conical cups and varying number of disks
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Pressure variation with time for the riser
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Gas mass flow variation with time for the riser
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Liquid mass flow variation with time for the riser
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Pig velocity versus pig position for the riser
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Time variation of pig position for the riser
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Pipeline with inward protruding flanges
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Pig velocity versus pig position for pipeline with flanges
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Time variation of pig position for pipeline with flanges
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Pressure distribution along pipeline at different time steps; pipeline with flanges
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Pipeline inlet/exit mass flow rate time variation for a bypass pigging operation
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Bypass pigging operation: (a) driving pressure force; (b) pig velocity

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