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Experimental Studies of Pressure Loss in Inclined Pipe in Slurry Transport for Subsea Mining

[+] Author Affiliations
Sotaro Masanobu, Satoru Takano, Tomo Fujiwara, Shigeo Kanada, Masao Ono

National Maritime Research Institute, Tokyo, Japan

Paper No. OMAE2015-41211, pp. V006T05A007; 9 pages
  • ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 6: Ocean Space Utilization
  • St. John’s, Newfoundland, Canada, May 31–June 5, 2015
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5654-3
  • Copyright © 2015 by ASME


For subsea mining, the estimation of pressure loss in the pipe of lifting system and the flexible pipe to connect the mining tool and the lifting system is important to design the mining system. The configuration of flexible pipe is expected to have an inclined part.

In the present paper, the authors carried out the experiment to measure the pressure loss in inclined pipes using alumina beads to investigate the effect of inclination angle of pipe on the pressure loss. Furthermore, a mathematical model to estimate the pressure loss in inclined pipes was proposed and validated through the experiments. As the result of the validation, it was confirmed that the proposed model could be applied to the pressure loss estimation in inclined pipes.

Copyright © 2015 by ASME



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