PARALLEL PIPELINING

Citation
Dd. Joseph et al., PARALLEL PIPELINING, Journal of fluids engineering, 117(3), 1995, pp. 446-449
Citations number
12
Categorie Soggetti
Engineering, Mechanical
ISSN journal
00982202
Volume
117
Issue
3
Year of publication
1995
Pages
446 - 449
Database
ISI
SICI code
0098-2202(1995)117:3<446:PP>2.0.ZU;2-N
Abstract
In this paper we introduce the idea of parallel pipelining for water l ubricated transportation of oil (or other viscous material). A paralle l system can have major advantages over a single pipe with respect to the cost of maintenance and continuous operation of the system, to the pressure gradients required to restart a stopped system and to the re duction and even elimination of the fouling of pipe walls in continuou s operation. We show that the action of capillarity in small pipes is more favorable for restart than in large pipes. In a parallel pipeline system, we estimate the number of small pipes needed to deliver the s ame oil flux as in one larger pipe as N = (R/r)(alpha), where r and R are the radii of the small and large pipes, respectively, and alpha = 4 or 19/7 when the lubricating water flow is laminar or turbulent.