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Analysis of the Effects of Valve Propagated Pressure Surge on Pipe Flow

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DOI: 10.4236/eng.2011.311137    5,677 Downloads   9,584 Views   Citations

ABSTRACT

This paper analyses the effects of pressure surge on pipe flow. The surge pressure investigated is that propagated by the emergency relief coupling valve (ERV) connected to a loading system carrying crude oil from four flow stations. The results of the analysis show remarkable changes in the fluid parameters arising from the shut down of the loading system by the ERV in the event of storm. For instance, in pipe 1 the pressure dropped from an initial value of 25 × 105 N/m2 to 19 × 105 N/m2, while the velocity of flow increased from 1.76 m/s to 2.97 m/s. The system showed high Reynolds number indicating turbulent flow and the Mach number in pipe IV as high as 3.6 indicating supersonic flow. The consequence of the pressure drop is column separation or cavitations. If the bubbles collapse, re-surge pressures occur leading to possible leakages and rupture of the pipes. All these can be minimized by selecting appropriate surge suppression devices for the system.

Cite this paper

B. Lebele-Alawa and F. Oparadike, "Analysis of the Effects of Valve Propagated Pressure Surge on Pipe Flow," Engineering, Vol. 3 No. 11, 2011, pp. 1098-1101. doi: 10.4236/eng.2011.311137.

References

[1] S. Lingireddy, D. J. Wood and N. Zloczower, “Pressure Surges in Pipeline System Resulting from Air Releases,” Journal AWWA, Vol. 96, No. 7, July 2004, pp. 88-94
[2] J. Krope and D. Goricanec, “Analysis of Pipe Networks including Pumps,” Energy and Buildings, Vol. 17, No. 2, 2003, pp. 141-145. doi:10.1016/0378-7788(91)90006-O
[3] J. Krope, D. Dobersek and D. Goricanec, “Flow Pressure Analysis of Pipe Networks with Linear Theory Method,” Proceedings of WSEAS/IASME International Conference on Fluid Mechanics, Miami, Florida, 18-20 January 2006, pp. 59-62.
[4] J. F. Douglas, J. M. Gasiorek and J. A. Swaffield, “Fluid Mechanics,” 4th Edition, Pearson Education, New Jersey, 2002, pp. 287-288, 516, 631.
[5] G. Liu, “Predicting Surge Pressures That Result from Running Liners,” Pegasus Ventures, Inc., Houston, 2001.
[6] Sunrise Systems Customer Education Training Manuel, “Modelling Pipeline and Utility Systems using Pipnet Vision,” 2008. http://www.sunrise-sys.com
[7] A. Lubinski, F. H. Hsu and K. G Nolte, “Transient Pressure Surges due to Pipe Movement in an Oil Well,” Oil & Gas Science and Technology—Rev. IFP, Vol. 32, No. 3, 1977, pp. 307-348. doi:10.2516/ogst:1977019
[8] M. Lal, “Surge and Swab Modeling for Dynamic Pressure and Safe Trip Velocities,” Proceedings 1983 IADC/ SPE Drilling Conference, New Orleans, 1983.
[9] R. F. Mitchell, “Surge Pressure: Are Steady State Models Adequate?” Proceedings SPE 63rd Annual Technical Conference, Houston, 1988.
[10] R. K. Raiput, “A Textbook of Fluid Mechanics and Hydraulic Machines,” S. Chand and Company Ltd, New Delhi, 2004, pp. 604, 724.
[11] T. D. Eastop and A. McConkey, “Applied Thermodynamics for Engineering Technologists,” Prentice Hall, Singapore, 1993.

  
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