Experimental and theoretical study of condensation in multicomponent vapors. Quarterly report No. 7, 15 August-14 November 1985

Technical Report · Tue Jul 01 04:00:00 EDT 1986

OSTI ID:5334228

Frish, M B; Wilemski, G

A revised classical theory of binary nucleation is used to calculate conditions for the onset of nucleation in aqueous methanol, ethanol, n-propanol and acetone mixtures. The theory implicitly accounts for surface enrichment of clusters through the use of the Gibbs adsorption equation and uses only bulk thermodynamic properties. Very good agreement with diffusion cloud chamber results is found for all four systems, demonstrating the adequacy of using the bulk surface tension to predict nucleation onset at low nucleation rates. Calculated onset of ethanol/water nucleation at higher rates also agrees acceptably with shock tube data. Unphysical behavior is calculated at very high nucleation rates and/or for very nonideal mixtures, limiting the range of applicability of the theory. 28 refs., 12 figs.

• Research Organization: Physical Sciences, Inc., Andover, MA (USA)
• DOE Contract Number: AC02-84ER13154
• OSTI ID: 5334228
• Report Number(s): DOE/ER/13154-7; PSI-154/TR-588; ON: DE86014832
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETONE
ALCOHOLS
AQUEOUS SOLUTIONS
COMPARATIVE EVALUATIONS
DISPERSIONS
ENERGY
ETHANOL
FORMATION FREE ENTHALPY
FREE ENTHALPY
HYDROXY COMPOUNDS
KETONES
METHANOL
MIXTURES
NUCLEATION
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PROPANOLS
SOLID CLUSTERS
SOLUTIONS
SURFACE PROPERTIES
SURFACE TENSION
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
VAPOR PRESSURE