http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정석윤(Seokyoon Jeong),이우(Woo Lee),이기수(Gisoo Lee),김경훈(Kyunghun Kim),배상현(Sanghyun Bae),김혜삼(Hyesam Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This research focused on the flow analysis of continuos regeneration Diesel Particulate Filter(DPF) for Diesel engines. Generally diesel engines are relatively superior to gasoline engine on the fuel consumption durability and combustion efficiency. But diesel engines are general1y known to be harmful to environment such as CO, HC, SOF and Particulate Matter(PM). For this reason, as an DPF and quality control of fuel has been applied as an after treatment system. In this study, the analysis was done on an heavy-duty diesel engine on which continuous regeneration DPF was installed in order to investigate the flow distribution and uniformity at the front of catalyst inlet on the change of shape of DPF.
정석윤(Seokyoon Jeong),이규상(kyu sang Lee),김경훈(Kyunghoon Kim) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
Axial fans are widely used due to their ability to produce high flow rate. Therefore this<br/> study appraise a specific of model of existing cooling fans and efficiency of it through<br/> common program. To effect an inspection of cooling fans, design and a made a experiment<br/> device, also through optimum design analyse domestic cooling fans' flow which is made and<br/> existing fans' flow. In this paper, the discussion is confined in basis research to enhance<br/> performance of automobile cooling fan, emphasized axial fan's flow field calculation method,<br/> analyze domestic axial fan's flow, and compared with experimental data.
배기저감장치의 촉매선단 입구 길이 변화에 따른 성능특성
정석윤(Seokyoon Jeong),임준형(Junhyoung Im),김상만(Sangman Kim),김혜삼(Hyesam Kim),김경훈(Kyunghun Kim) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The main constituents of exhaust gas emitted from a vehicle are Nitrogen and Vapor and others include Carbon Dioxide, Carbon Monoxide, Hydrocarbon, Nitrogen Oxide, Particulates. and SO₂. As the countermeasures to this exhaust gas, there are SCR directly resolving NOx, DOC oxidizing HC and CO by using O₂. and DPF removing PM accumulated on filter. In this research, we are about to study each performance characteristic on the front of catalyst inlet on the change of shape for exhaust reduction device.
질소산화물 저감을 위한 SCR TYPE CEM의 설계평가
정석윤(Seokyoon Jeong),정홍석(Hongseok Jung),이근우(Kunwoo Yi),조연근(Yonguen Cho),김경훈(Kyunghun Kim),김혜삼(Hyesam Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
SCR system for diesel engine vehicles is a device to reduce NOx from the emission gas of the diesel engine causing selective catalytic reaction by utilizing a metal catalyst with ammonia, NH₃, or HC as a reductant, and the device is recognized as a unique technology to meet future emission regulation for NOx such as Euro-V (2008). Under the current circumstance that the development for diverse post process technologies is in process, in this study, we evaluated the pressure and uniformity inside of SCR TYPE CEM(Catalyst Exhaust Muffler) reducing NOx among noxious gasses, through design and CFD(Computational Fluid Dynamics) analysis.
DOC 배플 위치에 따른 담체 입구에서의 유동균일도 평가
정석윤(Seokyoon Jeong),이우(Woo Lee),이기수(Gisoo Lee),김경훈(Kyunghun Kim),배상현(Sanghyun Bae),김혜삼(Hyesam Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The technologies reduction in exhaust emissions from diesel engines are simply defined as two; one is quality control of improvement fuel system and the other is development of diesel exhaust aftertreatment. An aftertreatment devices reduce exhaust gas of diesel engine, diesel oxidacatalyst(DOC) with high reduction efficiency for harmful matter and particulate matter. We carried out the evaluation of flow uniformity in substrate inlet on location Diesel Oxidation Catalysts (DOC) for heavy duty diesel engine vehicles. It was found that better conversion efficiency depends on the condition of temperature and shape of DOC inlet. In this study, the location of baffle inside DOC was analyzed in order to show the flow distribution and uniformity research as well as the effects of flow analysis.
승용차용 프런트 엔드 쿨링 팩 시스템의 일체형 냉각모듈에 관한 연구
정석윤(Seokyoon Jeong),이우(Woo Lee),김경훈(Kyunghoon Kim),이기수(Geesoo Lee),원종필(Jongphil Won) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, A major trend in the global automotive market will drastically change the way that vehicle FECPS(Front End Cooling Pack System) are designed and manufactured as an assembly part. It can encompass many functions, be assembled in a single step on the car, and reduce production costs as well as time. Therefore this study appraise a specific of model of existing cooling fans and efficiency of it through common program. To effect an inspection of cooling fans, design and a made a experiment device, also through optimum design analyse domestic cooling fans' flow which is made and existing fans' flow. And, the basic concept and initial integrated design of FECPS called KF-model(Korea Front End Cooling Model) was done aim ing at 2000cc, 4 door sedan. The reliable predictions of thermal performance of the cooling module(louvered fin, radiator, condenser, radiator and condenser) of the KF -model were achieved using a numerical method. Also, the flow structures and loss mechanisms between the cooling module and the carrier were investigated. As a result, we accumulated a totally systemized analysis method of the FECPS layout<br/>
정석윤(Seokyoon Jeong),이우(Woo Lee),김경훈(Kyunghoon Kim),박만흥(Manheung Park) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The form of impeller can be various according to the specific speed, the speed i circumference due to a restriction of intensity and the way stick impeller blade to the mai<br/> shaft. But the form of impeller as the fact specially influences the performance of a ventilator, depends on the setting angle of outlet β₂ in blade. This study practices analysis of the flows and performance test for the optimum design of impeller's backward bladed. And it emphasized numerical analysis of flow field in centrifugal fan and the optimum design as a development technique for improving the performance of the existing impeller. Also it analyzed imports and the flows of the optimum designed centrifugal fan, compared and examined with experimental data. As the result, the optimum designed centrifugal fan improved more 30% than imports i<br/> the performance and efficiency.
엄상윤(Sangyoon Eom),정석윤(Seokyoon Jeong),장주섭(Jooseop Jang),김경훈(Kyunghoon Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The hydraulic pressure system is had widely used in modem industrial field. because it has an advantage such as strong power, easy control. The limit of application is the actual circumstances to be more widening according to the automation plant and trend of the manufacture facilities. In according with that, It is necessary to interest in performance of it The purpose of test was concentrated on developing the Hydraulic pressure system and to reduce the prime cost of system. Utilized to an automation device instrument wide at an each industrial spot and contributed the air space development which contribution make great strides for robotics and aerospace departments.<br/>