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Numerical Investigation of Recommended Operating Parameters Considering Movement of Polymetallic Nodule Particles during Hydraulic Lifting of Deep-Sea Mining Pipeline

Author

Listed:
  • Yanyang Zhang

    (College of Mechanical and Electrical Engineering, Central South University, Changsha 410017, China
    National Key Laboratory of Deep Sea Mineral Researches Development and Utilization Technology, Changsha 410012, China)

  • Yu Dai

    (College of Mechanical and Electrical Engineering, Central South University, Changsha 410017, China
    National Key Laboratory of Deep Sea Mineral Researches Development and Utilization Technology, Changsha 410012, China)

  • Xiang Zhu

    (College of Mechanical and Electrical Engineering, Central South University, Changsha 410017, China
    National Key Laboratory of Deep Sea Mineral Researches Development and Utilization Technology, Changsha 410012, China)

Abstract

Previously conducted studies have established that pipeline hydraulic transport systems are currently the most promising deep-sea mining systems, and the pipeline transport performance of polymetallic nodules is one of the technical priorities. In this paper, a coupled CFD–DEM approach is adopted to numerically calculate the solid–liquid two-phase flow of seawater with polymetallic nodules. Small-scale experiments were conducted to validate the coupled model. Particle dynamics analysis was carried out under different inlet flow rates, feed concentrations and nodule fragmentation levels. The simulation results show that different operating parameters have significant effects on the pipeline transportation process. With low inlet flow rate, high feed concentration, and high percentage of large particles, the particle distribution and motion characteristics show a trend that is not conducive to safe transport. A set of recommended operating parameters for hydraulic transport of polymetallic nodule pipelines was summarized.

Suggested Citation

  • Yanyang Zhang & Yu Dai & Xiang Zhu, 2023. "Numerical Investigation of Recommended Operating Parameters Considering Movement of Polymetallic Nodule Particles during Hydraulic Lifting of Deep-Sea Mining Pipeline," Sustainability, MDPI, vol. 15(5), pages 1-20, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:4248-:d:1082054
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    Cited by:

    1. Peter Shobayo & Edwin van Hassel & Thierry Vanelslander, 2023. "Logistical Assessment of Deep-Sea Polymetallic Nodules Transport from an Offshore to an Onshore Location Using a Multiobjective Optimization Approach," Sustainability, MDPI, vol. 15(14), pages 1-23, July.

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