High pressure homogeneous nucleation of bubbles within superheated binary liquid mixtures

Journal Article · Fri May 01 04:00:00 EDT 1981 · J. Heat Transfer; (United States)

DOI:https://doi.org/10.1115/1.3244453· OSTI ID:6322012

Avedisian, C T; Glassman, I

The limits of superheat of some binary normal paraffin mixtures were measured at pressures up to 2128 kPa using the floating droplet method. The variation of nucleation temperature with liquid phase mole fraction was found to be nearly linear for these n-paraffin solutions over the whole pressure range in which the experiments were performed. Homogeneous nucleation theory was used to predict the limits of superheat of the solutions tested. The vapor pressures of the mixtures were estimated by using the Peng-Robinson equation of state to evaluate the liquid and vapor phase fugacities, and the mixture surface tensions were calculated using an empirical adaptation of the van der Waals expression for the surface tension of a pure liquid near the critical point. The predicted and measured limits of superheat were found to be in good agreement over the entire pressure range for all liquid phase compositions. The results of the present work could be useful for predicting liquid phase temperatures and compositions at which the microexplosive or disruptive burning of droplets of fuel blends which are mixtures of volatile and nonvolatile liquids will be initiated during droplet combustion at high ambient pressures.

• Research Organization: Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, N.Y. 14853 Assoc. Mem. ASME
• OSTI ID: 6322012
• Journal Information: J. Heat Transfer; (United States), Journal Name: J. Heat Transfer; (United States) Vol. 103:2; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ALKANES
BINARY MIXTURES
BUBBLES
DISPERSIONS
EQUATIONS
EQUATIONS OF STATE
FLUIDS
HEPTANE
HYDROCARBONS
LIQUIDS
MEDIUM PRESSURE
MIXTURES
NUCLEATION
OCTANE
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PENTANE
PHYSICAL PROPERTIES
SURFACE PROPERTIES
SURFACE TENSION
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
WAXES