Development of PM Aftertreatment System Using Non-thermal Plasma

Abstract

The purpose of this work is to develop an after-treatment system for removing particulate matters (PM) using non-thermal plasma. This plasma after-treatment system has the advantage of low pressure drop because of its flow-through structure, different from wall-flow particulate filters. It can continuously remove PM at the low temperature and is suitable for compact cars. In this study, we have developed a plasma reactor with high durability, a pulse power supply with high power efficiency and a power saving control method for the plasma system. The developed system achieved high PM removal performance and high durability with low supply power.