Study on Hydraulic Transport of Large Solid Particles in Inclined Pipes for Subsea Mining
- 23 May 2017
- journal article
- research article
- Published by ASME International in Journal of Offshore Mechanics and Arctic Engineering
- Vol. 139 (5)
- https://doi.org/10.1115/1.4036385
Abstract
For subsea mining, the prediction of pressure loss due to the hydraulic transport of solid particles in the flexible pipe to connect the mining tool and the lifting system is important for the design of mining system. The configuration of the flexible pipe is expected to have an inclined part. In the present paper, the authors developed a mathematical model to predict the pressure loss in inclined pipes. The total pressure loss is expressed by the summation of the loss due to a liquid single-phase flow and the additional loss due to the existence of solid particles. The additional pressure loss can be divided into the variation in static pressure due to the existence of solid particles, the loss due to the particle-to-pipe wall friction and collisions, and the loss due to the particle-to-particle collisions. The empirical formula in horizontal pipes proposed by the other researchers was applied to the model of the last two losses. Furthermore, we carried out the experiment on hydraulic transport of solid particles in a pipe. In the experiment, alumina beads, glass beads, and gravel were used as the solid particles, and the inclination angles of the pipe were varied to investigate the effect of the pipe inclination on the pressure loss. The calculated pressure loss using the model was compared with the experimental data. As the results of the comparison, it was confirmed that the developed model could be applied to the prediction of the pressure loss in inclined pipes.Keywords
Funding Information
- 8020 Promotion Foundation (JSPS KAKEHI Grant N)
This publication has 9 references indexed in Scilit:
- Experimental Studies of Pressure Loss in Inclined Pipe in Slurry Transport for Subsea MiningPublished by ASME International ,2015
- SME Special Session: Subsea Slurry Lift Pump Technology - SMS DevelopmentPublished by Society of Petroleum Engineers (SPE) ,2012
- Flow Assurance for Deep Ocean Mining - Pressure Requirement Through S-Shape Riser and JumperPublished by Society of Petroleum Engineers (SPE) ,2011
- Hydraulic Lifting of Manganese Nodules Through a RiserJournal of Offshore Mechanics and Arctic Engineering, 2004
- Motion of Spherical Particles in a Rotating Rectangle Vessel Filled with WaterShigen-to-Sozai, 2004
- Sedimentation and fluidisation: Part IChemical Engineering Research and Design, 1997
- A Comparative Study of Sliding Friction for Settling Slurry in a Pipe.Shigen-to-Sozai, 1993
- The Hydraulic Transport of Solid Materials through a Horizontal Straight PipeTransactions of the Japan Society of Mechanical Engineers, 1967
- Hydraulic Transport of Solid Material in PipesProceedings of the Institution of Mechanical Engineers, 1955