Evaluation method of the pipe wear due to large particle slurry transport

• Project/Area Number: 26820383
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: National Institute of Maritime, Port and Aviation Technology
• Principal Investigator: Takano Satoru 国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (90636820)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: スラリー / 配管 / 摩耗 / 大粒径 / 海底鉱物資源 / 海底熱水鉱床 / 揚鉱管 / スラリー流 / 大粒径粒子

Outline of Final Research Achievements

Subsea minerals exist in the deep water within Japanese exclusive economic zone. Since the pipe wear due to large particle slurry flow is one of significant technical issues in subsea minerals production, we studied the evaluation method of pipe wear due to
large particle slurry flow.
We proposed the model based on a the experiments for predicting the wear due to large particle collisions. Then we estimated the wear volume based on the model and numerical computing of slurry flow. The evaluation method may be valid with comparing the estimation results to results of pipe wear experiments due to large particle slurry flow.