Homogeneous nucleation of water in synthetic air

M.A.L.J. Fransen, E. Sachteleben, J. Hruby, D.M.J. Smeulders

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademic

1 Citaat (Scopus)

Samenvatting

Homogeneous nucleation rates for water vapor in synthetic air are measured by means of a Pulse-Expansion Wave Tube (PEWT). A comparison of the experimental nucleation rates with the Classical Nucleation Theory (CNT) shows that a more elaborated model is necessary to describe supercooled water nucleation at elevated pressures (10 bar). CNT is about 3 orders of magnitude off in case of our measurements. The overall trends, however, are predicted reasonably well by CNT. The size of the critical cluster (n*CNT) is predicted to be about 29 water molecules. The size of the critical cluster is obtained experimentally as well using the Nucleation Theorem. The result for water nucleation at a nucleation pressure of 10 bar and nucleation temperature of approximately 238 K is: n* = 21±1 water molecules.
Originele taal-2Engels
TitelProceedings of the 19th International Conference on Nucleation and Atmospheric Aerosols, 23-28 June 2013, Fort Collins, Colorado
RedacteurenP.J. DeMott, C.D. O'Dowd
Plaats van productieNew York
UitgeverijAmerican Institute of Physics
Pagina's124-127
ISBN van geprinte versie978-0-7354-1152-4
DOI's
StatusGepubliceerd - 2013
Evenement19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA 2013), June 24-28, 2013, Fort Collins, CO, USA - Colorado State University, Fort Collins, CO, Verenigde Staten van Amerika
Duur: 23 jun 201328 jun 2013
http://chem.atmos.colostate.edu/icnaa/

Publicatie series

NaamAIP Conference Proceedings
Volume1527
ISSN van geprinte versie0094-243X

Congres

Congres19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA 2013), June 24-28, 2013, Fort Collins, CO, USA
Verkorte titelICNAA 2013
Land/RegioVerenigde Staten van Amerika
StadFort Collins, CO
Periode23/06/1328/06/13
Ander19th International Conference on Nucleation and Atmospheric Aerosols
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