Chapter 2 On Board NOx Prediction in Diesel Engines: A Physical Approach

摘要

For pollutant emissions predictive physical modeling in diesel engines, three key points have to be taken into account:rn1. the suitability of the physico-chemical mechanisms to describe the important processes in the desired range of operating conditions;rn2. the sensitivity of these mechanisms and the corresponding models to errors in input parameters; andrn3. the accuracy when determining the input parameters.rnThis chapter takes the NOx formation/destruction process modeling as an example to illustrate the most important aspects of this kind of modeling.