A Study on NOx Reduction of SCR System in Heavy-Duty Diesel Engine to Achieve the Euro V Emission Limits

摘要

This paper presents the experimental studies on an SCR system for a mobile heavy-duty diesel engine to reduce NO_X emission below Euro V emission limits. The test results obtained by one engine serving in China show that NO_X emission was reduced to 1.81 g/kWh with ESC and 1.66 g/kWh with ETC, the reduction efficiency of NO_X was reduced by about 80%, while the average NH_3 slip is kept below 6 ppm.