Optimierung eines seegangsunabhängigen Ölskimmers durch numerische und experimentelle Analysen

Doktorarbeit / Dissertation aus dem Jahr 2007 im Fachbereich Ingenieurwissenschaften - Maschinenbau Note: mit Auszeichnung bestanden Technische Universität Berlin (Institut für Land- und Seeverkehr) Sprache: Deutsch Abstract: This Ph.D. thesis presents the optimization of the (mostly) sea state independentoil skimming system SOS by means of numerical and experimental analyses. Herethe SOS performance of counteracting oil disasters at open sea is closely examined.As a result of the evaluation of the functional principle of the system it isfound that the SOS shows a higher efficiency compared to existing oil recoverysystems - especially in high seas.The SOS does not feature any moving parts. The system consists of a moonpool (oil dike) and a pontoon (bow segment) which glides on the heavily movingoil polluted water surface damping the waves. As a result of this arrangementthe oil layer to flows underneath the pontoon towards a transverse blade whichseparates the oil from the water and protects the moon pool from wave effects.At the trailing edge of the bow segment a vortex develops accelerating the oilparticles in addition to their positive buoyancy towards the water surface of themoon pool. The wave-induced motions of the system cause sloshing effects ofthe fluid within the oil dike. These sloshing motions convey the oil particles overan adjustable slope into an oil sump from where they can be pumped off in aconcentrated form.