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120㎾급 대형고압 피스톤펌프 개발 및 상용화 기술개발
탁봉열(Bong-Yul Tak),김영주(Young-Ju Kim),한기영(Gi-Young Han),배상옥(Sang-Ok Bae) 한국마린엔지니어링학회 2006 한국마린엔지니어링학회 학술대회 논문집 Vol.2006 No.-
The following instructions give you basic guidelines for preparing camera-ready papers for the Journal of the KOSME. We recommend you to use the HWP word processor.
선박 초기화재 진화용 소방 펌프 성능 향상에 관한 연구
김강용(Kim Kang Yong),탁봉열(Tak Bong Yul),한기영(Han Gi Young),정훈(Jung Hun) 한국마린엔지니어링학회 2005 한국마린엔지니어링학회 학술대회 논문집 Vol.2005 No.-
미수분무 소화장치의 IMO 규격이 대폭 강화되어, 미수분무 소화장치에 공급되는 소화수의 용량 증대, 압력증가 등이 예상되어 그에 필요한 대형 고압 피스톤 펌프 개발이 필요하게 되었다. 이에 따라 설계 제작 및 성능시험기준을 확보하고, 기존 미수분무 소화장치용 고압펌프 진동 저감 및 내구성 향상으로 생산제품에 대한 신뢰성 향상을 이루었다.
최가람(Ka-Ram Choi),장춘만(Choon-Man Jang),탁봉열(Bong Yul Tak),김찬규(Chan Kyu Kim) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
Unsteady behavior of an internal flow has been performed for the diaphragm blower of a 1kW fuel cell. To analyze three-dimensional flow field in the diaphragm blower, general analysis code, CFX, is employed in the present work. SST turbulence model with scalable wall function is employed to estimate the eddy viscosity. Unstructured grids are used to represent a composite grid system. Throughout the numerical simulation, unsteady nature of an internal flow is successively analyzed by appling a moving mesh to the cavity region of diaphragm blower. Force variations on the lower plate of the cavity, which can analyze the motor torque, are also obtained in time. Detailed flow characteristics inside the cavity are analyzed and discussed.
장춘만(Choon-Man Jang),이종성(Jong-Sung Lee),탁봉열(Bong-Yul Tak),김찬규(Chan-Gyu Kim) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
This paper describes the blower performance used for single-stage high pressure regeneration blower. The blower considered in the present study is widely applied to the field of a fuel cell system, medical equipment and sewage treatment plant. Three-dimensional Navier-Stokes equations are introduced to analyze the performance and internal flow of the blower. Relatively good agreement between experimental measurements and numerical simulation is obtained. Throughout a numerical simulation, it is found that stable vortex flow generated inside the blade passage is effective to increase pressure in the blower. Local recirculation flow having low velocity in the blade passage obstructs the generation of stable vortex flow, thus increases the pressure loss of the blower. Detailed flow field inside the blower is also analyzed and discussed.