抄録
In recent years, DEP (Diesel Exhaust particles) is regarded as important as an environmental pollutant. The nano particles (particles whose diameter is 300nm or less) in DEP have a bad influence on the human body. Therefore, the main concern of this research is how the nano particles can be collected on ESP (Electrostatic Precipitator) effectively for road tunnel. The improvements of charging and collecting section to collect of nano particles in ESP have been experimentally investigated. The improvement of charging performance was conducted by increasing the charge density of the discharge points. In the collecting section, the usefulness of non-uniform electrode was examined.