Ultra-lean combustion at high inlet temperatures
Conference
·
OSTI ID:6726380
Combustion at inlet-air temperatures of 1100 to 1250/sup 0/K was studied for application to advanced automotive gas turbine engines. Combustion was initiated by the hot environment, and therefore no external ignition source was used. Combustion was stabilized without a flameholder. The tests were performed in a 12-cm-diameter test section at a pressure of 2.5 x 10/sup 5/ Pa, with reference velocities of 32 to 60 m/s and at maximum combustion temperatures of 1350 to 1850/sup 0/K. Number 2 diesel fuel was injected by means of a multiple-source fuel injector. Unburned hydrocarbons emissions were negligible for all test conditions. Nitrogen oxides emissions were less than 1.9 g NO/sub 2//kg fuel for combustion temperatures below 1680/sup 0/K. Carbon monoxide emissions were less than 16 g CO/kg fuel for combustion temperatures greater than 1600/sup 0/K, inlet-air temperatures higher than 1150/sup 0/K, and residence times greater than 4.3 ms.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- OSTI ID:
- 6726380
- Report Number(s):
- DOE/NASA/1011-33; NASA-TM-81640; CONF-810309-5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION ABATEMENT
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
DIESEL FUELS
ENGINES
EXHAUST GASES
FLUIDS
FUEL-AIR RATIO
GAS TURBINE ENGINES
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VEHICLES
WASTES
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION ABATEMENT
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
DIESEL FUELS
ENGINES
EXHAUST GASES
FLUIDS
FUEL-AIR RATIO
GAS TURBINE ENGINES
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VEHICLES
WASTES