Journal of ILASS-Korea (한국분무공학회지)
- Volume 13 Issue 3
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- Pages.134-142
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- 2008
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- 1226-2277(pISSN)
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- 2288-9051(eISSN)
Effect of Nozzle Cap Geometry for Swirl-Type Two-Fluid Nozzle on the Spray Characteristics
선회형 이유체노즐의 노즐캡 형상에 따른 분무특성
- Published : 2008.09.30
Abstract
In the case of heavy duty diesel engines, the Urea-SCR system is currently considered to reduce the NOx emission as a proved technology, and it is widely studied to get the high performance and durability. However, the nozzles to inject the urea-water solution into the exhaust pipe occur some problems, including the nozzle clogging, deposition of urea-water solution on the inner wall of the exhaust pipe, resulting in the production of urea salt. In this study, a swirl-type twin-fluid nozzle to produce more fine droplets was used as a method to solve the problems. The effect of the nozzle cap geometry, including the length to diameter ratio (
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