Method for measuring effective density and fractal dimension of aerosol agglomerates

被引：76

作者：

Virtanen, A ^{[1
]}

Ristimäki, J ^{[1
]}

Keskinen, J ^{[1
]}

机构：

[1] Tampere Univ Technol, Inst Phys, Aerosol Phys Lab, FIN-33101 Tampere, Finland

来源：

AEROSOL SCIENCE AND TECHNOLOGY | 2004年 / 38卷 / 05期

关键词：

D O I：

10.1080/02786820490445155

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A method to find particle effective density and the fractal dimension, based on simultaneous size distribution measurements with SMPS and ELPI, is introduced. A fitting procedure is used to find the particle density as a function of particle size and the fractal dimension. The method was tested by simulation and by experimental measurements of particles with varying morphology. For fractal dimension values between 2.2 and 3.0, fractal dimension was measured with an accuracy of 0.1, and effective density was measured with 15% relative accuracy.

引用

页码：437 / 446

页数：10

共 45 条

[1]

AHLVIK PJE, 1998, SAE 1998 T J FUELS L

[2] SLIP CORRECTION MEASUREMENTS FOR AEROSOL-PARTICLES OF DOUBLET AND TRIANGULAR TRIPLET AGGREGATES OF SPHERES [J].