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대형 디젤엔진 변속기 오일쿨러 냉각팬 유동특성에 관한 연구
이중섭(Chung seub Yi),서정세(Jeong se Suh),송철기(Chul ki Song),윤지훈(Ji hun Yun),신유인(Yoo in Shin) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
This study is about air-cooling fan for large diesel engine transmission oil cooler. In order to increasing the pressure, turbo type is proposed as the type of fan. Blades of impeller are constructed by splitted type. Experiment for the performance of cooling fan is carried out with reference on AMCA Standard 210-99. Moreover, the result of experiment is verified by using CFD. As the result, It can be confirmed a performance curve shows about 3% gap between experiment and numerical analysis, which indicates the lower flow rate in numerical analysis. But the global tendencies of experiment and numerical analysis are almost identical and the generated error can be covered in design.
이중섭(Chung Seub Yi),서정세(Jeong Se Suh),송철기(Chul Ki Song),신유인(Yoo In Shin),박중환(Joong hwan Park) 한국유체기계학회 2009 유체기계 연구개발 발표회 논문집 Vol.2009 No.-
This study includes a numbering value analysis about lubrication system of transmission for commercial vehicle. We have tried to confirm the flow rate of lubricating oil from lubrication pipe in each part with a standard for oil flow rate from the oil pumps. The transmission for this research can be applied to a commercial vehicle which is over 15tons, tried to confirm the flow range from CFD. The results are also compared with the rotation and mass flow rate of main shaft. The mass flow rate increased according to an engine rpm from oil hole. And we checked flow characteristic at transient state. This study is believed to be the start for the optimal design of the lubricating system in the manual transmission.
상용차용 변속기 주축 내 윤활유 분포패턴에 관한 수치해석
이중섭(Chung Seub Yi),서정세(Jeong Se Suh),송철기(Chul Ki Song),신유인(Yoo In Shin),박중환(Joong hwan Park) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
This study includes a numbering value analysis about lubrication system of transmission for commercial vehicle. We have tried to confirm the flow rate of lubricating oil from lubrication pipe in each part with a standard for oil flow rate from the oil pumps. The transmission for this research can be applied to a commercial vehicle which is over 15tons, tried to confirm the flow range from CFD. The results are also compared with the rotation and mass flow rate of main shaft. The mass flow rate increased according to an engine rpm from oil hole. This study is believed to be the start for the optimal design of the lubricating system in the manual transmission.
이중섭(Chung Seub Yi),장성철(Sung Cheol Jang),최주홍(Joo Hong Choi) 대한설비공학회 2009 설비공학 논문집 Vol.21 No.4
The aim of this study is to remove crack on a ventilation device at the suction part of zinc plating factory, and the main point is making optimum configuration by improving an existing hood system. The result shows that existing hood system has problem with duct configuration, angle and reducer. Model-E shows lowest pressure difference as meaning of suction capability. The hood inlet surface has most uniform suction capability.
이중섭(Chung seub Yi),서정세(Jeong se Suh),송철기(Chul ki Song),신유인(Yoo in Shin),박중환(Joong hwan Park) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
This study includes a numbering value analysis about lubrication system of transmission for commercial vehicle. We have tried to confirm the flow rate of lubricating oil from lubrication pipe in each part with a standard for oil flow rate from the oil pumps. The transmission for this research can be applied to a commercial vehicle which is over 15tons, tried to confirm the flow range from CFD. We could find out the quantity of lubrication oil at outlet of pipes with a numbering value analysis, which cannot be confirm with experimentation, hope to be applied as a reference for suitable drawing on next time.
이중섭(Chung-Seub Yi),신재호(Jae-Ho Shin),이해종(Hae-Jong Lee),서정세(Jeong-Se Suh),정한식(Han-Shik Chung),정효민(Hyo-Min Jeong) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
This study is analysis on the heat transfer of exhaust gas into the muffler at passenger car. Numerical analysis with Computational fluid Dynamics(CFD)was carried out to investigate exhaust gas flow. The STAR-CD S/W used for the three dimensional steady state CFD ananlysis in a muffler. The Navier-Stokes Equation is solved with the SIMPLE method in a general cartesian coordinates system. Result of numerical simulation; Inlet and outlet temperature shown about ΔT=239K, 216K, 202K at in the muffler. Heat transfer was progressed quickly by atmospheric temperature of muffler external at in the near wall.