Precautionary Management of Deep Sea Minerals

,

doi:10.1596/28298

Cited by 2 publications

References 8 publications

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What Role for Ocean-Based Renewable Energy and Deep-Seabed Minerals in a Sustainable Future?

Lubchenco

Haugan

2023

The Blue Compendium

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Scenarios for sustainable transformation of the global economy to near zero greenhouse gas emissions in 2050 in line with the Paris Agreement and the UN 2030 Agenda for Sustainable Development rely strongly on renewable energy. Offshore wind shows potential to become a globally significant supplier of electricity in these scenarios. Floating solar energy and direct ocean energy sources, such as wave, tidal and ocean thermal energy, may also contribute significantly in a range of locations, but require more policy support and understanding of potential environmental impacts in order to become significant in the transition to a sustainable global energy system.

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What Role for Ocean-Based Renewable Energy and Deep-Seabed Minerals in a Sustainable Future?

Lubchenco

Haugan

2023

The Blue Compendium

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Characterizing nodule motion in abyssal environments induced by double-row jets: A machine learning approach

Zhang,

Wu,

et al. 2024

Physics of Fluids

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Double-row hydraulic collectors are extensively utilized for deep-sea polymetallic nodule harvesting. Understanding the movement behavior of particles within the flow field is crucial for evaluating the efficiency collection system and guiding the design of deep-sea hydraulic collectors. This study first investigates the settling characteristics of particles in various deep-sea environments to assess the effects of high-pressure and low-temperature conditions on particle motion. Subsequently, the motion and force characteristics of particles under different double-row jet parameters were measured and analyzed in the laboratory using high-speed imaging. The results indicate that ambient pressure has a negligible effect on particle motion when the ambient temperature is considered. Particle is mainly lifted in an irregular spiral path by the turbulence of the upper fountain. The lifting height or force of a particle in the vertical direction is positively correlated with the frequency of horizontal fluctuations and inversely related to the average amplitude of these fluctuations. Finally, a neural network was constructed to predict the particle motion characteristics, demonstrating strong generalization and providing a reference for further use of artificial intelligence in extracting physical information of particles from the jet field. This study offers potential benefits for optimizing the design of the double-row jet collectors.

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Precautionary Management of Deep Sea Minerals

Cited by 2 publications

References 8 publications

What Role for Ocean-Based Renewable Energy and Deep-Seabed Minerals in a Sustainable Future?

What Role for Ocean-Based Renewable Energy and Deep-Seabed Minerals in a Sustainable Future?

Characterizing nodule motion in abyssal environments induced by double-row jets: A machine learning approach

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