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China","award":["LQ18F040001"],"award-info":[{"award-number":["LQ18F040001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Aviation soot constitutes a significant threat to human well-being, underscoring the critical importance of accurate measurements. The condensation particle counter (CPC) is the primary instrument for quantifying aviation soot, with detection efficiency being a crucial parameter. The properties of small particles and the symmetry of their growth pathways are closely related to the detection efficiency of the CPC. In laboratory environments, sodium chloride is conventionally utilized to calibrate the CPC\u2019s detection efficiency. However, aviation soot exhibits distinctive morphological characteristics compared to the calibration particles, leading to detection efficiencies obtained from calibration particles that may not be applicable to aviation soot. To address this issue, a quantitative study was performed to explore the detection efficiency deviations between aviation soot and calibration particles. The experiment initially utilized a differential mobility analyzer to size select the two types of polydisperse particles into monodisperse particles. Subsequently, measurements of the separated particles were performed using the TSI Corporation\u2019s aerosol electrometer and a rigorously validated CPC (BH-CPC). These allowed for determining the detection efficiency deviation in the BH-CPC for the two types of particles at different particle sizes. Furthermore, the influence of the operating temperature of the BH-CPC on this detection efficiency deviation was investigated. The experimental results indicate a significant detection efficiency deviation between aviation soot and sodium chloride. In the range of 10\u201340 nm, the absolute detection efficiency deviation can reach a maximum of 0.15, and the relative deviation can reach a maximum of 0.75. And this detection efficiency deviation can be reduced by establishing a relevant relationship between the detection efficiency of the operating temperature and the calibration temperature. Compared to the saturated segment calibration temperature of 50 \u00b0C, the aviation soot detection efficiency is closer to the sodium chloride detection efficiency at the calibration temperature of 50 \u00b0C when the saturated segment operates at a temperature of 45 \u00b0C. These studies provide crucial theoretical guidance for enhancing the precision of aviation soot emission detection and establish a foundation for future research in monitoring and controlling soot emissions within the aviation sector.<\/jats:p>","DOI":"10.3390\/sym16020244","type":"journal-article","created":{"date-parts":[[2024,2,16]],"date-time":"2024-02-16T06:00:25Z","timestamp":1708063225000},"page":"244","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Investigation into Detection Efficiency Deviations in Aviation Soot and Calibration Particles Based on Condensation Particle Counting"],"prefix":"10.3390","volume":"16","author":[{"given":"Liang","family":"Chen","sequence":"first","affiliation":[{"name":"School of Optics and Electronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Quan","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Optics and Electronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-9019-1860","authenticated-orcid":false,"given":"Guangze","family":"Li","sequence":"additional","affiliation":[{"name":"International Innovation Institute, Beihang University, Hangzhou 311115, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7786-761X","authenticated-orcid":false,"given":"Liuyong","family":"Chang","sequence":"additional","affiliation":[{"name":"International Innovation Institute, Beihang University, Hangzhou 311115, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Longfei","family":"Chen","sequence":"additional","affiliation":[{"name":"International Innovation Institute, Beihang University, Hangzhou 311115, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuanhao","family":"Li","sequence":"additional","affiliation":[{"name":"School of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,2,16]]},"reference":[{"key":"ref_1","first-page":"1872","article-title":"Development and validation of a soot mechanism for RP-3 aviation fuel","volume":"34","author":"Zhang","year":"2022","journal-title":"Chem. 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