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Comprehensive Characterization of Original 10-stage and 7-stage Modified Berner Type Impactors
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SYSNO ASEP 0353090 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Comprehensive Characterization of Original 10-stage and 7-stage Modified Berner Type Impactors Author(s) Štefancová, Lucia (UCHP-M)
Schwarz, Jaroslav (UCHP-M) RID, ORCID, SAI
Mäkelä, T. (FI)
Hillamo, R. (FI)
Smolík, Jiří (UCHP-M) RID, ORCID, SAISource Title Aerosol Science and Technology. - : Taylor & Francis - ISSN 0278-6826
Roč. 45, č. 1 (2011), s. 88-100Number of pages 13 s. Language eng - English Country US - United States Keywords cascade impactor ; collection efficiency ; losses Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA205/09/2055 GA ČR - Czech Science Foundation (CSF) OC 106 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ME 941 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000285542900009 DOI 10.1080/02786826.2010.524266 Annotation Two cascade impactors, Berner Low Pressure Impactor and modified BLPI (with lower pressure drop through) were characterized experimentally. First, the critical dimensions affecting the collection characteristics were measured for each impactor stage. Second, the stage absolute pressures were determined. Finally, the collection efficiency curves were obtained for all stages covering the size range of 0.026 – 13.7 µm. The collection efficiency of modified impactor was measured using two condensation particle counters (CPC). In addition, both impactors were experimentally tested for their particle losses using the ammonium sulfate particles at dry (15% RH) and wet (>80% RH) conditions. The losses were determined by rinsing sampling foil and corresponding impactor stage (jet plate, walls and spacer ring) by deionized water. Subsequently the ammonium sulphate content in a sample together with rinse water was analyzed using ion chromatography. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2011
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