Library Subscription: Guest
Home Archives Officers Future meetings Assembly for International Heat Transfer Conferences

EFFECT OF INTERNAL DIFFUSIONAL RESISTANCE ON THE EVAPORATION OF BINARY DROPLETS

R. B. Landis
California State University, Northridge, Calif., U.S.A.

Anthony F. Mills
Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095, U.S.A.

Abstract

An analysis of binary droplet evaporation is made wherein finite difference solutions are obtained to the equations governing unsteady conduction and diffusion within the droplet coupled to a quasi-steady model of mass and energy transport in the gas phase. Results are presented for pentane-, hexane-, and heptane-octane drops evaporating into air at 1 atm. and 600-2300 K. Evaporant composition and evaporation rates are compared with batch distillation behavior and significant differences noted. The phenomenon of disruptive boiling is explained by demonstrating the presence of composition-induced equilibrium pressure excesses of up to 2.25 atm. for pentane-octane drops.

Download article Publication Ethics and Malpractice Recommend to my Librarian Bookmark this Page