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Modelling of Binary Nucleation in Laminar Co-Flow Tube.

SYSNO ASEP	0508932
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	The record was not marked in the RIV
Title	Modelling of Binary Nucleation in Laminar Co-Flow Tube.
Author(s)	Trávníčková, Tereza (UCHP-M)_{RID, ORCID, SAI} Havlica, Jaromír (UCHP-M)_{RID, ORCID, SAI} Hrubý, Jan (UT-L)_{RID, ORCID} Ždímal, Vladimír (UCHP-M)_{RID, ORCID, SAI}
Source Title	Conference Guide. - Florence : Italian Association of Chemical Engineering, 2019 - ISBN N
Number of pages	2 s.
Publication form	Online - E
Action	European Congress of Chemical Enginewering /12./
Event date	15.09.2019 - 19.09.2019
VEvent location	Florence
Country	IT - Italy
Event type	EUR
Language	eng - English
Country	IT - Italy
Keywords	mathematical modeling ; laminar co-flow tube ; partial pressure profiles
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
OECD category	Chemical process engineering
Subject RIV - cooperation	Institute of Thermomechanics - Thermodynamics
R&D Projects	GA17-19798S GA ČR - Czech Science Foundation (CSF)
Institutional support	UCHP-M - RVO:67985858 ; UT-L - RVO:61388998
Annotation	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 (α-pinene, limonene). When nucleating components are entrained co-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 velocity and 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.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2020

Number of the records: 1