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Ejector diluter behavior assessment and dilution factor accuracy improvement
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SYSNO ASEP 0574068 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ejector diluter behavior assessment and dilution factor accuracy improvement Author(s) Červený, O. (CZ)
Vybíral, P. (CZ)
Mareš, L. (CZ)
Hemerka, J. (CZ)
Ondráček, Jakub (UCHP-M) RID, ORCID, SAI
Roztočil, Petr (UCHP-M)Source Title Particulate Science and Technology. - : Taylor & Francis - ISSN 0272-6351
Roč. 42, č. 2 (2024), s. 263-268Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords ejector diluter ; dilution factor ; aerosol measurement ; particle size distribution OECD category Environmental sciences (social aspects to be 5.7) Method of publishing Limited access Institutional support UCHP-M - RVO:67985858 UT WOS 001021416300001 EID SCOPUS 85164200948 DOI 10.1080/02726351.2023.2230548 Annotation In some applications, accurate knowledge of the dilution factor of a diluter can be crucial. Although the sample gas composition is one of the factors that influences the dilution factor of an ejector diluter, the available calibration data are usually obtained using air as sample gas. That can be a problem when the diluter is used in exhaust gas conditions, where the gas composition can differ significantly from air. Available ejector diluter models have been found unsuitable. The goal of this study was to set a method to determine the shift of dilution factor caused by sample gas composition, so the nominal or calibration value can be adjusted. Using CO2, the method was experimentally verified with good results. In addition, the present paper also investigated the possible influence of the diluter on the particle size distribution curve of the diluted sample. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0344435
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