期刊
JOURNAL OF AEROSOL SCIENCE
卷 73, 期 -, 页码 27-38出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jaerosci.2014.03.003
关键词
Condenstation particle counter; Solid particle counting; PMP; Volatile particle removal
类别
资金
- Thai Government
A High Temperature Condensation Particle Counter (HT-CPC) is described that operates at an elevated temperature of up to ca. 300 degrees C such that volatile particles from typical combustion sources are not counted. The HT-CPC is functionally identical to a conventional CPC, the main challenge being to find suitable non-hazardous working fluids, with good stability, and an appropriate vapour pressure. Some key design features are described, and results of modelling which predict the HT-CPC counting efficiency. Experimental results are presented for several candidate fluids when the HT-CPC was challenged with ambient, NaCl and diesel soot particles, and the results show good agreement with modelled predictions, and confirm that counting of particles of diameters down to at least 10 nm was achievable. Possible applications are presented, including measurement of particles from a diesel car engine and comparison with a near PMP system. (C) 2014 Elsevier Ltd. All rights reserved.
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