덕트 내 오염물질 퇴적 방지를 위한 벽면유동 제어에 관한 해석적 연구

다국어 초록 (Multilingual Abstract)

Technologies for preventing contaminants deposition are a key issue in a modern duct system. When particulate matters deposit inside the exhaust pipes, which are widely used in the Urea-SCR system to reduce NOx emission from heavy duty diesel engines, many problems arise associated with increased flow resistance and corrosion. Therefore, the development of the urea deposition avoidance technologies is being treated as an important issue of the Urea-SCR system. An analytical study was carried out to investigate the effects of the wall flow around the mixer with the variation of the mixer housing surrounding and supporting the mixer, which is designed to increase the wall flow and then to reduce droplet deposition. The housing angles and the position of the mixer were changed：angles of 0°, 1° , 2° , and 3° , and mixer positions of 0 L, 0.5 L, and 1 L. The axial velocity distributions, maximum velocity, the half-width, and momentum distribution of the wall flow were investigated to examine the effect of the mixer-housing assembly geometry.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 유동해석 모델 및 경계조건
• 3. 해석결과 및 고찰
• 4. 결론
• 참고문헌

참고문헌 (Reference)

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