Experimental Study of Transport Phenomena of Evaporating Fuel Films P. L. Kelly-Zion (Engineering Science Department) and C. J. Pursell (Chemistry Department), Trinity University, San Antonio, TX 78212-7200
Vapor phase diffusion and convection control the evaporation rate. vapor cloud Schlieren Image of an Flow of natural Evaporating Hexane Film: convection The dark region shows film the vapor cloud that substrate forms above the film.
Measured
Evaporation Rate [mg/s]
4
Correlation developed to compute the evaporation rate under combined diffusive and convective transport 3MP Hexane Acetone Cyclohexane Heptane Methanol
3 2
Computed
Only half of the distribution is presented. The distribution is axisymmetric.
3MP Hexane Acetone Cyclohexane Heptane Methanol
1
0 0
4
8
12
16
Drop Radius [mm]
Measured Vapor Concentration Distribution above a Hexane Film.
20
24
