Diazido alkanes and diazido alkanols as combustion modifiers for liquid hydrocarbon ramjet fuels

Patent · Thu Jul 03 04:00:00 EDT 1986

OSTI ID:6562732

Miller, R S

This invention relates to liquid-hydrocarbon jet fuels and more particularly to azido additives to liquid-hydrocarbon ramjet fuels. In most liquid-fueled combustors such as the ramjet, the fuel is directly introduced into the upstream flow section of the combustion chamber in the form of sprays of droplets. These droplets subsequently mix with the external gas, heat up, gasify, combust, and thereby release heat to provide the propulsion energy. It is therefore obvious that the rates of gasification and mixing would closely affect the chemical heat release rate and, consequently, such important performance parameters as combustion efficiency and the tendency to exhibit combustion instability. Accordingly, and object of this invention is to provide a new, improved jet fuel and provide new additives for jet fuels. A further object of this invention is to provide a more-efficient jet fuel and reduce the ignition time for jet fuels. Still, a further object of this invention is to improve the mixing characteristics of the jet-fuel spray.

• Assignee: Dept. of the Navy, Washington, DC
• Patent Number(s): None
• OSTI ID: 6562732
• Country of Publication: United States
• Language: English

Related Subjects

090110* -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
ADDITIVES
AZIDES
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COMBUSTION
CONVERSION
EFFICIENCY
ENERGY CONVERSION
ENGINES
FLUIDS
FUEL ADDITIVES
FUELS
GASES
HEAT ENGINES
HYDROCARBONS
IGNITION
INTERNAL COMBUSTION ENGINES
JET ENGINE FUELS
LIQUIDS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDATION
PROPULSION SYSTEMS
RAMJET ENGINES
THERMOCHEMICAL PROCESSES