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 independent
oil skimming system SOS by means of numerical and experimental analyses. Here
the 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 is
found that the SOS shows a higher e ciency compared to existing oil recovery
systems - especially in high seas.
The SOS does not feature any moving parts. The system consists of a moon
pool (oil dike) and a pontoon (bow segment), which glides on the heavily moving,
oil polluted water surface, damping the waves. As a result of this arrangement,
the oil layer to ows underneath the pontoon towards a transverse blade, which
separates the oil from the water and protects the moon pool from wave e ects.
At the trailing edge of the bow segment a vortex develops, accelerating the oil
particles in addition to their positive buoyancy towards the water surface of the
moon pool. The wave-induced motions of the system cause sloshing e ects of
the uid within the oil dike. These sloshing motions convey the oil particles over
an adjustable slope into an oil sump from where they can be pumped ö in a
concentrated form.