K. Madokoro

Publications (2)1.6 Total impact

• Article: Uneven Dielectric Barrier Discharge Reactors for Diesel Particulate Matter Removal

  S. Yao, C. Fushimi, K. Madokoro, K. Yamada
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  ABSTRACT: Uneven dielectric barrier discharge (DBD) reactors driven by positive–negative pulse plasma discharges were investigated for particulate matter (PM) removal from a diesel engine. Two kinds of uneven alumina plates and three kinds of uneven stainless steel plates were used to assemble six kinds of uneven DBD reactors of discharge gaps 0.4–1.0mm. The experimental results show that PM from diesel engines can be removed using the uneven DBD reactors. The maximum PM removal was 67% at 300W energy injections using the DBD reactor of 0.4mm gap distance. PM removal increased with decreasing gap distance. The energy efficiency using the uneven DBD reactor of a shorter gap distance was higher than that using the uneven DBD reactor of a longer gap distance as the uneven DBD reactor of a shorter gap distance has a higher PM deposition rate. The energy efficiency was typically in a range of 3–10.6g/kWh at an energy density of 2–16J/L. A comparison of this study with reports given by other research groups is given.
  Plasma Chemistry and Plasma Processing 09/2006; 26(5):481-493. · 1.60 Impact Factor
• Article: Diesel Participate Matter Removal Using DBD Pulsed Plasmas

  S. Yao, K. Madokoro, C. Fushimi, K. Yamada
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  ABSTRACT: A new DBD reactor made of uneven alumina and stainless steel plates has been developed for particulate matter (PM) removal from a diesel engine using pulsed plasma discharges. PM removal using 24 pairs of uneven alumina and stainless steel plates is the same as that using 32 pairs of flat alumina plates and mesh metal electrodes that we previously reported. A disturbed discharge uniformly has been obtained in spaces between the uneven alumina plates and stainless steel plates; however, it is difficult to get a uniform discharge using flat alumina plates and mesh metal electrodes. The discharge energy efficiency is 3.6 g/kWh at maximum, which is under improvement for an actual application. © 2005 American Institute of Physics
  AIP Conference Proceedings. 10/2005; 799(1):209-212.