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박인송(Insong Park),정태용(Taeyong Chung) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
In order to evaluate the damage repairability of a SUV vehicle which experienced a low-speed collision, tests were made according to the RCAR testing procedures. Test results concluded ; (1) The deceleration at C.G(center of gravity) of 6.9~11.39 was similar to that for the vehicle. The airbag system was found to affect neither the passenger's safety nor the savings of the repairing costs. (2) In order to improve the repairability of a damaged SUV vehicle after collision, a higher quality of the bumper, according to the RCAR standards, should be used. Part supply system should be changed to allow exchanges of individual components. (3) The current diversity in determining repairing costs shows three different repairing costs. The diversity should be unified in order to reduce the repairing cost, and to improve repairability.<br/> <br/> <br/>
슬러지 유동층 소각로에서의 연소 시뮬레이션에 관한 연구
김영민(Youngmin Kim),신동훈(Donghoon Shin),정태용(Taeyong Chung) 한국연소학회 2011 KOSCOSYMPOSIUM논문집 Vol.- No.42
The present study discussed about the sludge incinerator's combustion phenomena via experimental and numerical method. The temperature and gas concentration were measured at 33 points at an operating sludge incinerator. The numerical simulation is executed with a commercial CFD code. Some artificial boundary conditions were introduced to predict the bulk solid combustion and the diffusion of the volatile matter which is generated by the pyrolysis of sludge. The experimental results showed that the combustion process is extremely heterogeneous and showed big variance on the temperature as well as the chemical species in the reactor due to low mixing performance between the air and the combustibles, which is due to massive and bulk generation of volatile matters by the fast pyrolysis of the sludge. The boundary condition of the CFD simulation was reasonable to predict the poor mixing and combustion performance in the reactor.