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Re-evaluation of the Pressure Effect for Nucleation in Laminar Flow Diffusion Chamber Experiments with Fluent and the Fine Particle Model
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SYSNO ASEP 0321737 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Re-evaluation of the Pressure Effect for Nucleation in Laminar Flow Diffusion Chamber Experiments with Fluent and the Fine Particle Model Title Přehodnocení vlivu tlaku v nukleačních expermentech s difúzní komorou s laminárním tokem, použitím Fluentu s modelem jemných častic Author(s) Herrmann, E. (FI)
Hyvärinen, A.-P. (FI)
Brus, David (UCHP-M) RID, SAI, ORCID
Lihavainen, H. (FI)
Kulmala, M. (FI)Number of authors 5 Source Title Journal of Physical Chemistry A. - : American Chemical Society - ISSN 1089-5639
Roč. 113, č. 8 (2009), s. 1434-1439Number of pages 6 s. Language eng - English Country US - United States Keywords laminar flow diffusion chamber ; experimental data ; fine particle model Subject RIV CF - Physical ; Theoretical Chemistry CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000263529600005 DOI 10.1021/jp809134r Annotation This study is an investigation of the effect of total pressure on homogeneous nucleation rates of n butanol in helium and n pentanol in helium and argon in a laminar flow diffusion chamber (LFDC). The FLUENT analysis yielded a weak positive pressure effect for the nucleation of n butanol in helium at low nucleation temperatures (265 and 270 K). n pentanol in helium showed a positive pressure effect at all temperatures (265 and 290 K), while the effect for the nucleation of n pentanol in argon was negative at high temperatures (280 and 285 K) and positive at lower nucleation temperatures (265 K). These findings support results gained with the corrected femtube2 model. In this study, we also carried out a detailed comparison of FLUENT and femtube2 modeling results, especially focusing on the calculation of temperature and saturation ratio at nucleation rate maximum in both models. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2009
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