Performance Test of a Two-staged Impactor for Morphology Analysis of Diesel Exhaust Particles
This study describes a serial method to estimate the effective density and fractal dimension of particles, especially diesel exhaust particles. Physical and morphological parameters such as fractal dimension, effective density, bulk density and dynamic shape factor were derived or at least approximated from simultaneous measurements of electrical mobility diameter and aerodynamic diameter. For this purpose, we designed an impactor and evaluated its performance using an aerosol electrometer. Then, diesel exhaust particles from a Common-rail DI engine were measured with the impactor and a differential mobility analyzer (DMA). We determined the effective density and also estimated the fractal dimension of diesel exhaust particles from these data.
Low-pressure impactor Effective density Fractal dimension
Sang-Gu Lee Junho Hyun Jungho Hwang
Department of Clean Technology,Yonsei University,134 Shinchon-dong,Seodaemun-gu,Seoul,120-749,Korea Department of Clean Technology,Yonsei University,134 Shinchon-dong,Seodaemun-gu,Seoul,120-749,Korea
国际会议
西安
英文
1180-1183
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）