ガラス板上に形成した電位の不均一を利用したディーゼルエンジン排ガス中の微粒子捕集

抄録

We have been developing an electrostatic precipitator for carbon particles emitted from internal combustion engines. The unevenness in the surface potential on glass plates as collection electrodes is the key in this device. The surface potential is created when discharge occurs by discharge electrodes attached on the surface, and decays after the end of applying the high voltage. The decay is enhanced by the carbon particles that adhere to the surface. In this study, surface potentials were evaluated under the condition that soot was deposited on the glass surface. In addition, the relationship between the potential distribution and collection efficiency was discussed.