Reduction of nitric oxide emission from a Si engine by water injection at the intake runner

Jun Kai Wang, Jing Lun Li, Ming Hsun Wu, Rong Horng Chen

研究成果: Conference contribution

16 引文 斯高帕斯(Scopus)

摘要

The effects of pulsed water injection at the intake port of a modern port fuel injenction gasoline engine were investigated. A port water injenction system was developed and the water injector was installed on the intake runner of the single cylinder motorcycle engine at a location upstream of the fuel injector. The results show that with a watergasoline injection ratio of 1, more than 80% of NOx emission can be removed. The trade-off was a 25% reduction in torque output a 4000 rpm and 20% throttle opening; however, the decrease on torque can be controlled to be within 5% by reducing water-gasoline mass ratios to less than 0.6. We also performed NOx emission modeling using one-dimensional gas dynamics code with extended Zeldovich mechanism, and cosistent results were found between numerical prediction and experimental measurements. The port water injection approach appears to be an effective means for reducing NOx emission from a gasoline engine at low speed and high load conditions without largely sacrificing the performances on torque output and unburned hydrocarbon emissions.

原文English
主出版物標題Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009
發行者American Society of Mechanical Engineers (ASME)
頁面335-340
頁數6
ISBN(列印)9780791843765
DOIs
出版狀態Published - 2010 一月 1
事件2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009 - Lake Buena Vista, FL, United States
持續時間: 2009 十一月 132009 十一月 19

出版系列

名字ASME International Mechanical Engineering Congress and Exposition, Proceedings
3

Other

Other2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009
國家/地區United States
城市Lake Buena Vista, FL
期間09-11-1309-11-19

All Science Journal Classification (ASJC) codes

  • 機械工業

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