Performance evaluation of conventional type conductive cooling continuous flow compact water-based CPC (Hy-WCPC)
- Authors
- Hwang, Inkyu; Ahn, Kang-Ho
- Issue Date
- Nov-2017
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Water-based condensation particle counter (WCPC); Electrometer; Faraday cup; Counting efficiency
- Citation
- JOURNAL OF AEROSOL SCIENCE, v.113, pp.12 - 19
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF AEROSOL SCIENCE
- Volume
- 113
- Start Page
- 12
- End Page
- 19
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/8545
- DOI
- 10.1016/j.jaerosci.2017.07.007
- ISSN
- 0021-8502
- Abstract
- In this study, a water-based compact handheld condensation particle counter (Hy-WCPC) is developed and its performance is evaluated. The Hy-WCPC is a small and light water-based CPC and the operating principle is the same as the conventional continuous flow conductive cooling alcohol-based condensation particle counters (CPC). This study presents the particle material dependent Hy-WCPC cut-off sizes and the particle concentration counting linearity between the Hy-WCPC and electrometer by generating silver, sodium chloride, zinc and paraffin particles. Moreover, the comparison between the Hy-WCPC and commercially available ultrafine CPC (TSI 3776) for ambient airborne particles is presented. The cut-off sizes of the Hy-WCPC for silver and paraffin particles are 3.61 nm and 5.30 nm, respectively. For sodium chloride and zinc particles, the Hy-WCPC lower detection limit is achieved less than 4 nm. Moreover, the particle concentration counting linearity between the Hy-WCPC and electrometer is presented. The excellent particle number concentration counting linearity agreement between the Hy-WCPC and electrometer is shown for the laboratory generated particles. Also, the particle concentration counting linearity between the Hy-WCPC and the TSI 3776 for outdoor ambient airborne particles is shown. The reasonable agreement between the Hy-WCPC and the TSI 3776 was obtained. In the long-term measurement of outdoor ambient airborne particles for 7 days, this agreement had been maintained, however, after 7 days, the TSI 3776 did not operate properly due to the high humidity, while the Hy-WCPC was operating without the problem.
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Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
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