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최종하(Jongha Choi),슬량(Shi Yang),정문부(Moonbu Jung),손창현(Changhyun Sohn) 한국자동차공학회 2004 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
With the Euro-4 regulation coming into effect from 2005, the domestic car industry is forced to look for newer options to reduce NO_x in the exhaust. EGR (Exhaust Gas Recirculation) cooler is an effective method for the reduction of NO_x form a diesel engine. High efficiency, low pressure loss and compactness are desirable features of an EGR Cooler. The cooling performance of EGR depends on the shape of tubes and the location of the entrance and exit. This paper reports the computational work conducted to estimate the performance of EGR cooler with three different cross section tubes and a triangular spiral tube. Three dimensional computation results show that the triangular tube is more effective than circular and rectangular tube. The most effective geometry is a triangular spiral tube with offset inlet and outlet locations.
튜브형상에 따른 배기가스 재순환 냉각 장치 열전달 성능 평가
최종하(Jongha Choi),슬량(Shi Yang),정문부(Moonbu Jung),손창현(Changhyun Sohn) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
With the Euro-4 regulation coming into effect from 2005, the domestic car industry is forced to look for newer options to reduce NOX in the exhaust. EGR(Exhaust Gas Recirculation) cooler is an effective method for the reduction of NOX form a diesel engine. High efficiency, low pressure loss and compactness are desirable features of an EGR Cooler. The cooling performance of EGR depends on the shape of tubes and the location of the entrance and exit.<br/> This paper reports the computational work conducted to estimate the performance of EGR cooler with three different cross section tubes and a triangular spiral tube. Three dimensional computation results show that the triangular tube is more effective than circular and rectangular tube. The most effective geometry is a triangular spiral tube with offset inlet and outlet locations.