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A Suggestion of Estimation Approach for NO x Produced in a Cylinder Using Two-Color Method
Published May 19, 2010 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
For reduction of NOx emission from diesel engines, it's important to capture temporal and spatial changes of NOx produced in a cylinder. However, it is difficult to observe presence of the NOx itself visually in a cylinder. Therefore, the authors quantitatively evaluated a correlation between the NOx emission and flame temperature, focusing on a relation between the NOx formation process and temperature. Consequently, the evaluation confirmed that there is a high correlation between NOx production index derived from the flame temperature measured by two-color method using the extended Zeldovich mechanism and the NOx emission from optical engine.