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Atomization and Sprays

Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

Institutional price:	$787.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

1996, Volume6

124 pages

Issue price - $75.00

SPRAY FORMATION BY FLASHING OF A BINARY MIXTURE: AN ENERGY BALANCE APPROACH

Eran Sher
Ben-Gurion University of the Negev

Michal Zeigerson-Katz
The Pearlstone Center for Aeronautical Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel

ABSTRACT

An attempt is made to correlate droplets' Sauter mean diameter with the thermodynamic properties of a binary mixture at initial conditions, by means of the process efficiency interpretation and the "available energy" theorem. Two limiting cases are considered; an isothermal process and an adiabatic process. An idealized form of the isothermal model results in a simple correlation that clearly explains some of the relationships between the initial conditions of the binary solution and the spray quality.
The results of the adiabatic model seem to be more realistic and fit the experimental observations better. The process efficiency is found to be about 2 × 10⁻⁴. It is possible that the process efficiency depends to a limited extent on the initial conditions.