Laboratory study of H2SO4/H2O nucleation using a new technique - a laminar co-flow tube

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F18%3A43893893" target="_blank" >RIV/44555601:13440/18:43893893 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/16000889.2018.1446643" target="_blank" >http://dx.doi.org/10.1080/16000889.2018.1446643</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/16000889.2018.1446643" target="_blank" >10.1080/16000889.2018.1446643</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Laboratory study of H2SO4/H2O nucleation using a new technique - a laminar co-flow tube

Popis výsledku v původním jazyce

Nucleation of aerosol particles from gaseous precursors is an important stage in the formation of atmospheric secondary aerosols or in industrial applications, particularly coal burning boilers. We introduce a novel laboratory device for studying binary or ternary nucleation - a laminar co-flow tube (LCFT) - and provide first data for the H2SO4/H2O system, showing that LCFT is able to cover a wide range of nucleation rates. The experimental set-up and the underlying transport processes are explained. Advantages of LCFT over methods employing turbulent mixing are suppression of wall losses and an accurate mathematical model. The determined nucleation rates are by about two orders of magnitude lower than typical literature values. Results of various nucleation experiments often show systematic differences unexplained by the present level of knowledge. Introduction of the LCFT technique based on a well-defined laminar diffusion process may help to identify the method-related biases.

Název v anglickém jazyce

Laboratory study of H2SO4/H2O nucleation using a new technique - a laminar co-flow tube

Popis výsledku anglicky

Nucleation of aerosol particles from gaseous precursors is an important stage in the formation of atmospheric secondary aerosols or in industrial applications, particularly coal burning boilers. We introduce a novel laboratory device for studying binary or ternary nucleation - a laminar co-flow tube (LCFT) - and provide first data for the H2SO4/H2O system, showing that LCFT is able to cover a wide range of nucleation rates. The experimental set-up and the underlying transport processes are explained. Advantages of LCFT over methods employing turbulent mixing are suppression of wall losses and an accurate mathematical model. The determined nucleation rates are by about two orders of magnitude lower than typical literature values. Results of various nucleation experiments often show systematic differences unexplained by the present level of knowledge. Introduction of the LCFT technique based on a well-defined laminar diffusion process may help to identify the method-related biases.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Tellus. Series B, Chemical and physical meteorology

ISSN

1600-0889

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

70

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

"nestrankovano"

Kód UT WoS článku

000428085600001

EID výsledku v databázi Scopus

2-s2.0-85045271927