2018 Volume 49 Issue 6 Pages 1280-1285
Portable emissions measurement systems (PEMS) are attracting attention because of requirements for measurement of vehicle emissions under real driving conditions. Solid particle number (PN) emission is one of measurement component defined by a European light-duty regulation. Because of difference in calibration procedures between conventional stationary PN measurement systems and PN-PEMS, measurement difference of PN emissions by these systems are concerned. Influence of particle size distribution is evaluated in this study. Moreover, feasibility of on-board small particle measurement down to 10 nm by extending the detection efficiency of PN-PEMS to small particles is discussed.
