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.

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页码：437 / 446

页数：10

相关论文

共 45 条

[31] STOKES DRAG ON SELF-SIMILAR CLUSTERS OF SPHERES [J].

ROGAK, SN ;

FLAGAN, RC .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1990, 134 (01) :206-218

[32] STRUCTURAL-ANALYSIS OF SOOT AGGLOMERATES [J].

SAMSON, RJ ;

MULHOLLAND, GW ;

GENTRY, JW .

LANGMUIR, 1987, 3 (02) :272-281

[33] IN-SITU MEASUREMENT OF SIZE AND DENSITY OF SUBMICRON AEROSOL-PARTICLES [J].

SCHLEICHER, B ;

KUNZEL, S ;

BURTSCHER, H .

JOURNAL OF APPLIED PHYSICS, 1995, 78 (07) :4416-4422

[34] INSITU MEASUREMENT OF THE FRACTAL DIMENSIONALITY OF ULTRAFINE AEROSOL-PARTICLES [J].

SCHMIDTOTT, A .

APPLIED PHYSICS LETTERS, 1988, 52 (12) :954-956

[35] NEW APPROACHES TO INSITU CHARACTERIZATION OF ULTRAFINE AGGLOMERATES [J].

SCHMIDTOTT, A .

JOURNAL OF AEROSOL SCIENCE, 1988, 19 (05) :553-&

[36] SCALING BEHAVIOR OF PHYSICAL PARAMETERS DESCRIBING AGGLOMERATES [J].

SCHMIDTOTT, A ;

BALTENSPERGER, U ;

GAGGELER, HW ;

JOST, DT .

JOURNAL OF AEROSOL SCIENCE, 1990, 21 (06) :711-717

[37] High fractal-like dimension of diesel soot agglomerates [J].

Skillas, G ;

Kunzel, S ;

Burtscher, H ;

Baltensperger, U ;

Siegmann, K .

JOURNAL OF AEROSOL SCIENCE, 1998, 29 (04) :411-419

[38] Density and fractal-like dimension of particles from a laminar diffusion flame [J].

Skillas, G ;

Burtscher, H ;

Siegmann, K ;

Baltensperger, U .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 217 (02) :269-274

[39]

Sorensen CM, 2001, AEROSOL SCI TECH, V35, P648, DOI 10.1080/02786820117868

[40] Fine particle losses in electrical low-pressure impactor [J].

Virtanen, A ;

Marjamäki, M ;

Ristimäki, J ;

Keskinen, J .

JOURNAL OF AEROSOL SCIENCE, 2001, 32 (03) :389-401

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