Fast Current Oil Response System - Stage I, SVROS Development.
HYDRONAUTICS INC LAUREL MD
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Combined theoretical and experimental studies show the effects of several parameters on the formation of a thickened pool of oil inside the Surface Velocity Retarder Oil Skimmer SVROS, an energy absorbing device designed to recover thin oil slicks in high relative currents. This collection device is composed of an array of closely spaced flat plates that serve to gradually dissipate the kinetic energy of the oilwater inflow so that the oil can be collected without the entrainment losses typical of simple oil booms in currents exceeding about one knot. Model tests were performed in prototype scale with thin models of the device in an 80 foot long towing tank and in a recirculating flume. Test variables included velocity 1-10 fps, oil type from 5 to 1000 cs, slick thickness 0.04-0.50 in. and model geometry. The final model configuration utilized several interchangeable modules so that pool formation was controlled over the wide range of inflow parameters to optimize the purity and efficiency of oil withdrawal from the SVROS. Curves defining the recovery performance are presented that show essentially complete oil recovery up to 5 fps with thin slicks of light fuel oil such as Diesel fuel. Performance degrades with increases in velocity, viscosity and incident wave height. Author
- Civil Engineering