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디젤배출가스중 PM 50% 저감을 위한 Flow-Through Trap 장치
최용택(Yongtaek Choi),김진각(Jingak Kim),이석규(Sukyu Lee),조규백(Gyu-Baek Cho),김영주(Young Joo Kim),이재수(Jae-Soo Rhee) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
A diesel particulate Flow-Through Trap (FTT) system, composed of stainless steel foam has been developed and evaluated. The basic concept of the system is to configure several different pore sizes of the foam filters gradually, from large pore sizes to small pore sizes, in order to achieve high efficiency of diesel PM reduction and simultaneously low pressure drop. Each component of the FTT system was coated with Sud-Chemie's proprietary catalyst support and further catalyzed with platinum for better performance. Multiple configurations of the FIT system were evaluated by varying pore sizes (20~50 PPI), substrate sizes, and the number of beds. Tests were conducted using 1.86 Liter and 4.4 Liter diesel engine. Based on the results of these engine tests, the FTT is found to be an effective device to remove more than 50% of PM from the diesel engine exhaust. The FTT prototypes can be regenerated successfully without any further active regeneration control when the exhaust gas temperature is maintained at 280℃ and higher.