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http://dx.doi.org/10.5293/kfma.2016.19.4.048

A Study on the Flow Characteristics of Oil-Water Separator for Marine Ship CFD  

Kim, Byeong Jun (department of mechanical engineering, graduate school, Korea Maritime & Ocean University)
Kim, Sung Yoon (Korean Marine Equipment Research Institute)
Roh, Chun Su (Ureatec Co.)
Lee, Young Ho (division of mechanical engineering, KMOU)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.4, 2016 , pp. 48-53 More about this Journal
Abstract
The centrifugal separator which uses gravity separation method for oil-water separation, rotating at high-speed, is one of the most commonly used device for controlling the amount of the oil in waste water collected in bilge. The IMO (International Maritime Organization) has set regulations, also known as MARPOL 73/78, for the prevention of marine pollution. In addition, DET NORSKE VERITAS (DNV) has set standards regarding the assignment of Environmental Class Notation, CLEAN or CLEAN DESIGN, of ships. One of the requirements for classification is that in addition to conforming to MARPOL 73/78, more stringent measures must be taken as well. One of these measures is to limit the oil concentration in bilge water to less than 5ppm. So in this study, an Oil-Water Separator (OWS) is used together with multiple separating plates as a filtration system to be used as an oil-water separation device. The OWS operates using centrifugal separation in which the mixture is separated by centrifugal forces. The main purpose of this paper is to present the OWS separation efficiency according to the rotation speed, mass-flow rate, the angle and the number of stacked layers of the laminated plate using Computational Fluid Dynamics (CFD). Improvements to the device will be investigated from these results.
Keywords
Centrifugal Separator; CFD; Laminated Plate; Oil-Water Separator; Separation Efficiency;
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