On the disruptive burning of free droplets of alcohol/n-paraffin solutions and emulsions

Conference · Tue Jan 01 04:00:00 EST 1980 · Symp. (Int.) Combust., (Proc.); (United States)

OSTI ID:5167659

Lasheras, J C; Fernandez-Pello, A C; Dryer, F L

A systematic experimental study of the low Reynolds number, atmospheric pressure combustion of free droplets of binary n-propanol/n-paraffin solutions and ethanol/n-paraffin solutions and emulsions was performed. Special attention was given to the characterizing the disruptive burning phenomena for these fuel systems. The onset of disruptive burning was shown to be a function of both the difference between the normal boiling points and relative concentration of the solution components. Disruptive burning was found to be the result of homogeneous bubble nucleation within the interior of the droplet followed by the expansion and bursting of the gaseous nucleus. All ethanol/n-paraffin emulsions studied exhibited disruptive combustion behavior typical of solutions. This was attributed to dissolution of the dispersed phase during the transient heating period. 18 refs.

• Research Organization: Princeton Univ, NJ
• OSTI ID: 5167659
• Report Number(s): CONF-800809-
• Conference Information: Journal Name: Symp. (Int.) Combust., (Proc.); (United States)
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000 -- Petroleum-- Combustion
090210* -- Alcohol Fuels-- Properties-- (1976-1989)
10 SYNTHETIC FUELS
ALCOHOLS
ALKANES
CHEMICAL REACTIONS
COLLOIDS
COMBUSTION
DISPERSIONS
DROPLETS
EMULSIONS
ETHANOL
HYDROCARBONS
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
OXIDATION
PARTICLES
PROPANOLS
SOLUTIONS
THERMOCHEMICAL PROCESSES