Fundamental combustion studies of emulsified fuels. Final report
An experimental apparatus was designed and built in order to study the combustion of free, isolated fuel droplets at low Reynolds number conditions. Studies were conducted into the disruptive combustion behavior of n-paraffin/water emulsions and binary solutions of n-paraffins. A lower limiting paraffin boiling point was determined so that nucleation of water in emulsions was achieved. Solutions exhibited a limited range of composition for which disruption of the droplets was observed. A minimum difference in boiling points of the components was necessary to achieve disruption. Analysis of vapor bubble growth indicated fundamental differences between the behavior of emulsions and solutions. The work on binary paraffin solutions was extended to alcohol/paraffin solutions which also exhibited disruptive activity within a range of composition. Studies of emulsified No. 2 oil and ethanol/No. 2 oil solutions indicated the existence of microexplosions wih the combustion of these fuel blends. Finally, a full scale boiler test was conducted to determine the impact of heavy oil/water emulsification on boiler operating characteristics. The most significant effect was the reduction of large carbon particulate emissions.
- Research Organization:
- Princeton Univ., NJ (USA). Dept. of Mechanical and Aerospace Engineering
- DOE Contract Number:
- AC02-78ER10113
- OSTI ID:
- 7044086
- Report Number(s):
- DOE/ER/10113-10; ON: DE82021289
- Country of Publication:
- United States
- Language:
- English
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Wed Dec 31 23:00:00 EST 1980
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALCOHOLS
ALKANES
BOILERS
BOILING POINTS
BUBBLES
CHEMICAL REACTIONS
COLLOIDS
COMBUSTION
DISPERSIONS
DROPLETS
EMULSIFICATION
EMULSIONS
ETHANOL
FLUIDS
FUEL OILS
FUELS
GASES
HEATING OILS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUID FUELS
METHANOL
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PARTICLES
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
RESIDUAL FUELS
SOLUTIONS
STEAM GENERATORS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VAPOR GENERATORS
VAPORS
WATER
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALCOHOLS
ALKANES
BOILERS
BOILING POINTS
BUBBLES
CHEMICAL REACTIONS
COLLOIDS
COMBUSTION
DISPERSIONS
DROPLETS
EMULSIFICATION
EMULSIONS
ETHANOL
FLUIDS
FUEL OILS
FUELS
GASES
HEATING OILS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUID FUELS
METHANOL
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PARTICLES
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
RESIDUAL FUELS
SOLUTIONS
STEAM GENERATORS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VAPOR GENERATORS
VAPORS
WATER