0742 プラズマ放電によるNO_x低減の試み(S41-1 燃焼制御と排出物低減技術(1),S41 燃焼制御と排出物低減技術)

概要

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A diesel engine has a higher thermal efficiency and emits a lower CO_2, emission comparing to that of gasoline engine. However, NO_x and PM emissions show a higher level and their reduction are required from the stand points of human health effect. An after-treatment system, especially catalyst system shows to be very effective for emission reduction. But. the exhaust temperature of diesel powered vehicle is often low and the catalyst system does not work well. Then the authors pay attention to a discharged plasma system and carried out a basic study using the sample gases including N_2, NO, O_2, CO_2, and etc. It showed a good result in case of less than 10% O_2 and worse one in case of more than 10% O_2, in the sample gas for diesel NO_x reduction. Also this system seems to be effective for auxiliary NO reduction system.
一般社団法人日本機械学会の論文
2007-09-07