This paper presents the mixing model for illuminating the influence of density, viscosity and the topographical height difference on the interfacial product-mixing in pipeline, in which a new virtual axial dispersion coefficient related with contamination concentration and its gradient was utilized. With the simplification of the Reynolds number of the mixture unvaried with the concentration, contamination concentration distribution relevant to density difference and gravitation acceleration etc was developed. When the Reynolds number of the mixture was a function of concentration, the mixing model was solved numerically by Crank-Nicholson implicit difference scheme. Analysis indicated that the effect of inclination angle on contamination decreases gradually with the increase of the distance traveled by the interface and the contamination Reynolds number. Particularly, the degree of effect became invisible when pipeline is in completely turbulent flow, and the Reynolds number is greater than the critical Reynolds number defined by Austin and Palfrey while the pipeline was considerably long. In the undulate long-distance multi-products pipeline, contamination due to topographical height difference can be ignored in turbulent flow while the Reynolds number is greater than critical Reynolds number.
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2004 International Pipeline Conference
October 4–8, 2004
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute
ISBN:
0-7918-4176-6
PROCEEDINGS PAPER
Research on Contamination Caused by the Topographical Difference in Batch Transportation
Jing Gong,
Jing Gong
University of Petroleum, Beijing, China
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Zhengling Kang,
Zhengling Kang
University of Petroleum, Beijing, China
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Dafan Yan
Dafan Yan
University of Petroleum, Beijing, China
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Jing Gong
University of Petroleum, Beijing, China
Zhengling Kang
University of Petroleum, Beijing, China
Dafan Yan
University of Petroleum, Beijing, China
Paper No:
IPC2004-0659, pp. 2171-2176; 6 pages
Published Online:
December 4, 2008
Citation
Gong, J, Kang, Z, & Yan, D. "Research on Contamination Caused by the Topographical Difference in Batch Transportation." Proceedings of the 2004 International Pipeline Conference. 2004 International Pipeline Conference, Volumes 1, 2, and 3. Calgary, Alberta, Canada. October 4–8, 2004. pp. 2171-2176. ASME. https://doi.org/10.1115/IPC2004-0659
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