Chapter
Aug 6, 2020
Pipelines 2020
Analyzing Transient Reponses of Pumped Pipelines Using an Analytic Energy-Based Approach
Authors: Ahmad Malekpour, Ph.D. [email protected], and D. McPherson, Ph.D. [email protected]Author Affiliations
Publication: Pipelines 2020
ABSTRACT
Based on an internal energy concept an analytical approach is proposed to determine whether a pumped pipeline system needs surge protection during the loss of power to the pumping units and, if required, to calculate the additional energy that protects the system against the resulting transient pressures. The approach is then extended to calculate the required size of two conventional proactive surge control devices, air chambers, and flywheels. The accuracy of the proposed approach is then tested in the context of hypothetical examples with comparison to results obtained from a full transient analysis conducted using a numerical solution based on the method of characteristics (MOC). A very good agreement between the analytical and numerical results confirms the validity of the proposed energy approach.
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REFERENCES
Ghidaoui, M. S., Zhao, M., McInnis, D. A., & Axworthy, D. H. (2005). A review of water hammer theory and practice. Appl. Mech. Rev., 49–76.
Karassik, I. J., Messina, J. P., Cooper, P., & Heald, C. C. (2001). Pump handbook. New York: McGraw-Hill.
Karney, B. W. (1990). Energy Relations in Transient Closed-Conduit Flow. J. Hydraul. Eng., 116(10), 1180-1196.
Malekpour, A., & Karney, B. W. (2014). Understanding the Risks of High Pressures Following Rapid Pressurization in Pipelines Containing Entrapped Air Pockets: A Novel Energy Auditing Approach. International Pipelines Conference, (p. 33616). Calgary AB.
Malekpour, A., Karney, B. W., & McPherson, D. (2018). Reflections on the acoustic wave propagation speed in homogeneous two-phase flow. 13th International Conference on Pressure Surges 2018 (pp. 455–470). Bordeaux: BHR Group.
Wylie, E., & Streeter, V. (1993). In Fluid Transients in Systems. Upper Saddle River NJ: Prentice-Hall.
Information & Authors
Information
Published In
Pipelines 2020
Pages: 137 - 147
Editors: J. Felipe Pulido, OBG, Part of Ramboll and Mark Poppe, Brown and Caldwell
ISBN (Online): 978-0-7844-8321-3
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Aug 6, 2020
Published in print: Aug 6, 2020
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Authors
Affiliations
P.Eng.
Hydraulic Specialist and President, Innovative Hydraulic Group, Vaughan, ON, Canada. Email: [email protected]
P.E.
National Pipelines Practice Lead, HDR, Charlotte, NC. Email: [email protected]
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