On-line measurement of size distribution and effective density of submicron aerosol particles

被引：88

作者：

Ristimäki, J ^{[1
]}

Virtanen, A ^{[1
]}

Marjamäki, M ^{[1
]}

Rostedt, A ^{[1
]}

Keskinen, J ^{[1
]}

机构：

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

来源：

JOURNAL OF AEROSOL SCIENCE | 2002年 / 33卷 / 11期

关键词：

D O I：

10.1016/S0021-8502(02)00106-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An on-line method is presented for simultaneous size distribution and particle density measurement, based on parallel measurements made by SMPS and ELPI. The measured SMPS number distribution is integrated with the ELPI response functions to produce calculated current response. By varying the density value, the best fit is sought between the calculated and measured current response. Simulation tests made showed relatively good stability against small uncertainties in the distribution and the response functions. Test measurements of well-defined aerosols with known density were conducted. Density values of 0.86, 1.1, and 1.9 g/cm(3) were measured for liquid particles of DOS, Santovac vacuum oil, and Fomblin vacuum oil, respectively. These. values are within 8% of the accepted bulk values. For solid particles of NaCl, Zn, and Ag, slightly larger experimental errors in the range of 4-18.2% were found. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1541 / 1557

页数：17

共 31 条

[1]

AHLVIK P, 1998, 980410

[2]

[Anonymous], 2002010056 SAE

[3]

[Anonymous], AEROSOL MEASUREMENT

[4] Determination of differential mobility analyzer transfer functions using identical instruments in series [J].

Birmili, W ;

Stratmann, F ;

Wiedensohler, A ;

Covert, D ;

Russell, LM ;

Berg, O .

AEROSOL SCIENCE AND TECHNOLOGY, 1997, 27 (02) :215-223

[5] APS RESPONSE TO NONSPHERICAL PARTICLES AND EXPERIMENTAL-DETERMINATION OF DYNAMIC SHAPE FACTOR [J].

BROCKMANN, JE ;

RADER, DJ .

AEROSOL SCIENCE AND TECHNOLOGY, 1990, 13 (02) :162-172

[6] INERTIAL IMPACTION OF FINE PARTICLES AT MODERATE REYNOLDS-NUMBERS AND IN THE TRANSONIC REGIME WITH A THIN-PLATE ORIFICE NOZZLE [J].

DELAMORA, JF ;

RAO, N ;

MCMURRY, PH .

JOURNAL OF AEROSOL SCIENCE, 1990, 21 (07) :889-909

[7]

DELAMORA JF, 1990, J AEROSOL SCI, V21, P169

[8] Novel method to classify aerosol particles according to their mass-to-charge ratio - Aerosol particle mass analyser [J].

Ehara, K ;

Hagwood, C ;

Coakley, KJ .

JOURNAL OF AEROSOL SCIENCE, 1996, 27 (02) :217-234

[9]

FUCHS NA, 1961, MECH AEROSOLS, P54

[10]

GRASKOW B, 2001, THESIS U CAMBRIDGE

← 1 2 3 4 →