Abstract
NOx removal technology by non-thermal plasma has been investigated so far, and many investigations have revealed the NOx removal performance of various type of discharge, energy efficiency, effect of additives, co-operative effect of selective catalyzer and so on. Now it is important to establish the design method of these NOx removal systems. This paper describes a design method of these systems for NOx removal in exhaust gas from diesel engine. The knowledges on exhaust gas of diesel engine, thermal conductivity of high speed gas flow and the efficiency of NO removal at various NO removal rate are necessary in the design procedure. A system was designed according to this design method and the system was constructed and tested.