An investigation on the mechanism of the increased NO 2 emissions from H 2 -diesel dual fuel engine

The addition of hydrogen (H2) into the intake air of a diesel engine was found to significantly increase the emissions of nitrogen dioxide (NO2). Previous research demonstrated a strong correlation between the emissions of NO2 and unburned H2 in exhaust gas. However, the mechanism whereby H2 addition in increasing NO2 formation in a H2-diesel dual fuel engine. Previously has not been investigated.