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전산유체역학을 이용한 산업용교반기의 Impeller형상에 따른 유동특성
김동균(D.K.Kim),배석태(S.T.Bae),이철재(C.J.Lee),박재현(J.H.Park),김오근(O.K.Kim) 한국마린엔지니어링학회 2006 한국마린엔지니어링학회 학술대회 논문집 Vol.2006 No.-
Industrial agitators are used in various industrial fields where they are necessary to intimately mix two reactants in a short period of time. However, despite their widespread use, complex unsteady flow characteristics of industrial agitators are not systematically investigated. The present study aims for clarify unsteady flow characteristics induced by various impellers in a tank. Impellers are pitched blade turbine(PBT) types, Screw type and Rushton turbine type. In this study flow characteristics of the Impeller using CFD. The rotating speed of impellers fixed about 100RPM. These three types of Impeller show that typical flow characteristics of axial turbine and suitable for mixing powder.
전철호,장영석,이기우,김오근 동아대학교 생산기술연구소 2001 生産技術硏究所硏究論文集 Vol.6 No.1
Rotating heat pipe with parallel axis could be applicated to Provide rotating heat exchanger for waste heat recovery, However there are few publication on heat transfer performance of rotating heat pipes which have their axis paralleled to the rotating axis. This Paper presents a theoretical investigation of a parallel rotating heat pipe basic on an experimental results. Heat exchanger with heat pipes were tested to obtain the optimum design of the constructer, working fluid, and working condition. The predicts of a heat transfer characteristics is presented which enable us to perceive the influence of the ratio of evaporator and condenser length, king of working fluid and flow ratio of air.