Modelling of Binary Nucleation in Laminar Co-Flow Tube

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F19%3A43895290" target="_blank" >RIV/44555601:13440/19:43895290 - isvavai.cz</a>

Výsledek na webu

<a href="https://asep.lib.cas.cz/arl-cav/cs/detail-cav_un_epca-0508932-Modelling-of-Binary-Nucleation-in-Laminar-CoFlow-Tube/" target="_blank" >https://asep.lib.cas.cz/arl-cav/cs/detail-cav_un_epca-0508932-Modelling-of-Binary-Nucleation-in-Laminar-CoFlow-Tube/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of Binary Nucleation in Laminar Co-Flow Tube

Popis výsledku v původním jazyce

Particle nucleation is one of the important phenomena encountered in both chemical engineering and environmental studies. The Laminar Co-Flow Tube(LCFT) was designed for experimental measurement of binary and ternary nucleation of mixtures of atmospheric aerosols at laboratory conditions, most often H2SO4 + H2O + amines (MEA, TEA)/terpenes (?-pinene, limonene). When nucleating components are entrainedco-currently with H2S04 in the axial flow, a clearly defined nucleation zone can be formed in the axial region of the chamber. As a result, the losses of the formed particles on the device walls are minimized. Laminar flow allows mathematical modeling of velocityand partial pressure profiles in the chamber. From these, it is then possible to predict the shape and size of the nucleation zone and subsequently the nucleation rate. Two models were used for mathematical modeling of momentum and mass transfer in the LFDC.2D axisymmetric CFD model and simplified 1D analytical model. A parametric study was carried out using both models and the influence of the individual simplifications of analytical model on overall behavior of the system was discussed.

Název v anglickém jazyce

Modelling of Binary Nucleation in Laminar Co-Flow Tube

Popis výsledku anglicky

Particle nucleation is one of the important phenomena encountered in both chemical engineering and environmental studies. The Laminar Co-Flow Tube(LCFT) was designed for experimental measurement of binary and ternary nucleation of mixtures of atmospheric aerosols at laboratory conditions, most often H2SO4 + H2O + amines (MEA, TEA)/terpenes (?-pinene, limonene). When nucleating components are entrainedco-currently with H2S04 in the axial flow, a clearly defined nucleation zone can be formed in the axial region of the chamber. As a result, the losses of the formed particles on the device walls are minimized. Laminar flow allows mathematical modeling of velocityand partial pressure profiles in the chamber. From these, it is then possible to predict the shape and size of the nucleation zone and subsequently the nucleation rate. Two models were used for mathematical modeling of momentum and mass transfer in the LFDC.2D axisymmetric CFD model and simplified 1D analytical model. A parametric study was carried out using both models and the influence of the individual simplifications of analytical model on overall behavior of the system was discussed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Book of Abstracts

ISBN

978-88-95608-75-4

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

"nestrankovano"

Název nakladatele

Italian Association of Chemical Engineering

Místo vydání

Florence

Místo konání akce

Florence

Datum konání akce

15. 9. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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