An Experimental Analysis on Hydraulic Lifting of Solids through a Small-scale Vertical Tube

The flexible hose system, which smoothly connects the buffer system and the miner in the deep sea lifting system, maximizes the action radius of the miner and prevents the lifting pipe from being twisted or broken. In order to predict and prevent accidents such as pipe clogging and to minimize the required power through the system, it is important to understand the flowing characteristics of manganese nodules and seawater in a flexible hose system. In this study a lab-scale flexible hose apparatus has been designed and manufactured to analyze the effects of pipe curvature on the flow characteristics of solid-liquid two-phase mixture in a flexible hose. The expe-riments for solid-liquid two-phase flow in a flexible hose has been performed by changing experimental factors, such as particle size, particle injection rate, hose shape and two-phase mixture velocity. The experimental results show that the increase of discharged volume fraction and diameter of the solid particles causes the pressure drop in the hose and the increase of the minimum velocity to transport the solid particles in the identical flexible hose. In the case of the solid-liquid two-phase mixture velocity more than 1.5 m/sec, the more the shape of the flexible hose becomes curved, the more the pressure drop in the hose increases. When it is lower than 1.5 m/sec, it was confirmed that the more the shape of the flexible hose becomes linear, the stronger the accumulation phenomenon becomes and the more the pressure drop in the hose increases.

show abstract

The Effects of Pipe Curvature on the Flow Characteristics of Solid-liquid Two-phase Mixture in an Experimental Flexible Hose System

Yoon

Lee

Kwon

et al. 2002

Geosystem Engineering

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

An Experimental Analysis on Hydraulic Lifting of Solids through a Small-scale Vertical Tube

Cited by 1 publication

References 0 publications

The Effects of Pipe Curvature on the Flow Characteristics of Solid-liquid Two-phase Mixture in an Experimental Flexible Hose System

The Effects of Pipe Curvature on the Flow Characteristics of Solid-liquid Two-phase Mixture in an Experimental Flexible Hose System

Contact Info

Product

Resources

About