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Nonisothermal homogeneous nucleation

Wyslouzil, B. E. and Seinfeld, J. H. (1992) Nonisothermal homogeneous nucleation. Journal of Chemical Physics, 97 (4). pp. 2661-2670. ISSN 0021-9606. http://resolver.caltech.edu/CaltechAUTHORS:WYSjcp92

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Abstract

Classical homogeneous nucleation theory is extended to nonisothermal conditions through simultaneous cluster mass and energy balances. The transient nucleation of water vapor following a sudden increase in saturation ratio is studied by numerically solving the coupled mass and energy balance equations. The ultimate steady state nucleation rate, considering nonisothermal effects, is found to be lower than the corresponding isothermal rate, with the discrepancy increasing as the pressure of the background gas decreases. After the decay of the initial temperature transients, subcritical clusters in the vicinity of the critical cluster are found to have temperatures elevated with respect to that of the background gas.


Item Type:Article
Additional Information:Copyright © 2006 American Institute of Physics (Received 2 August 1991; accepted 28 April 1992) This work was supported by National Science Foundation Grant No. ATM-9003 186 and by the Alberta Heritage Scholarship Fund (BEW). The authors wish to acknowledge helpful discussions with Frank G. Shi.
Subject Keywords:NUCLEATION; WATER; NUMERICAL SOLUTION; ATOMIC CLUSTERS; TEMPERATURE DISTRIBUTION; ENERGY BALANCE; HOMOGENEITY
Record Number:CaltechAUTHORS:WYSjcp92
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:WYSjcp92
Alternative URL:http://dx.doi.org/10.1063/1.463055
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5486
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:19 Oct 2006
Last Modified:26 Dec 2012 09:13

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