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Particle size effects on optimal sizing and lifetime of pipelines transporting multi-sized solid-liquid mixtures.

Kollár, László E.; Mishra, Rakesh; Asim, Taimoor

Authors

László E. Kollár

Rakesh Mishra



Abstract

A life-cycle cost analysis model is developed in this study, to examine the effects of particle size distribution of the solid particles to be transported on the optimal sizing and lifetime of the pipelines used for transportation of solid-liquid mixtures. The method determines the lifetime of the pipe corresponding to the least annual total cost per unit length of the pipe. The optimum diameter is obtained so that the total cost per unit pipe length per unit volume of the transported mixture throughout this lifetime is minimum. The total cost includes manufacturing and repair cost of pipe, cost of pumping power as well as the cost of power required for the crushing of particles from an initial size distribution to a desirable particle size distribution. The repair cost of pipe and cost of pumping power increase as the pipe becomes older due to more frequent pipe breaks and due to the pipe wear that makes wall roughness, and thereby pressure drop, greater. These costs together with the cost of power for crushing must be considered for through life costing of pipelines. Since the transportation of solid-liquid mixtures is maintained by several pumping stations in long pipelines, the spacing between two successive pumping stations must also be determined. The study shows interdependence of parameters such as the lifetime, the optimum diameter, the corresponding spacing for a given pumping power and the particle size distribution of solid particles transported in the pipeline. Furthermore, the method also provides the interrelation between the total length of pipeline when crushing is economical and the different particle size distributions.

Citation

KOLLÁR, L.E., MISHRA, R. and ASIM, T. 2013. Particle size effects on optimal sizing and lifetime of pipelines transporting multi-sized solid-liquid mixtures. Procedia CIRP [online], 11: proceedings of 2nd Through-life engineering services international conference 2013 (TESConf 2013), 5-6 November 2013, Cranfield, UK, pages 317-322. Available from: https://doi.org/10.1016/j.procir.2013.07.008

Journal Article Type Conference Paper
Conference Name 2nd Through-life engineering services international conference 2013 (TESConf 2013)
Conference Location Cranfield, UK.
Acceptance Date Jul 29, 2013
Online Publication Date Sep 27, 2013
Publication Date Dec 31, 2013
Deposit Date Jun 7, 2021
Publicly Available Date Jun 7, 2021
Journal Procedia CIRP
Print ISSN 2212-8271
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 11
Pages 317-322
DOI https://doi.org/10.1016/j.procir.2013.07.008
Keywords Life-cycle cost analysis; Optimal sizing; Particle size distribution; Pipeline; Solid-liquid mixture
Public URL https://rgu-repository.worktribe.com/output/867361

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