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de Hoog, E. (author), van Wijk, J. M. (author), Talmon, A.M. (author), van Rhee, C. (author)Density wave amplification in hydraulic transport pipelines forms a high risk to operational continuity, as density waves can lead to system blockages or centrifugal pump drive failures. Recent experimental research, in pipelines which contain long vertical sections, has shown that density waves can amplify at velocities far exceeding the...journal article 2022
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de Hoog, E. (author), van Wijk, J. M. (author), Wijnands, J. T.M. (author), Talmon, A.M. (author)The mining of polymetallic nodules from the seafloor at depths down to 6000m requires the excavation of nodules with a seafloor mining tool, the transport of nodules as a slurry through a jumper hose connecting the mining tool to a vertical hydraulic transport system and the transport of the nodules through the vertical lifting pipe. We focus...journal article 2020
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van Wijk, J. M. (author), de Hoog, E. (author)Polymetallic nodules provide an alternative source of valuable metals. Nodules from the seabed of the Clarion Clipperton Zone (CCZ), a prospective mining area, are typically abundant at depths of around 5 km. Mining these nodules comprises excavation or pick-up of nodules and hydraulic transport of nodules from the seafloor to the surface....journal article 2020
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- van Wijk, J.M. (author) conference paper 2013