Combustor exhaust emissions with air-atomizing splash-groove fuel injectors burning jet A and diesel number 2 fuels

Technical Report · Tue Jul 01 00:00:00 EDT 1975

OSTI ID:7339235

Ingebo, R D; Norgren, C T

Air-atomizing, splash-groove injectors were shown to improve primary-zone fuel spreading and reduce combustor exhaust emissions for Jet A and diesel number 2 fuels. With Jet A fuel large-orifice, splash-groove injectors the oxides nitrogen emission index was reduced, but emissions of carbon monoxide, unburned hydrocarbons, or smoke were unaffected. Small-orifice, splash-groove injectors did not reduce oxides of nitrogen, but reduced the smoke number and the carbon monoxide and unburned-hydrocarbon emission indices. With diesel number 2 fuel, the small-orifice, splash-groove injectors reduced oxides of nitrogen by 19%, smoke number by 28%, carbon monoxide by 75%, and unburned hydrocarbons by 50%. Smoke number and unburned hydrocarbons were twice as high with diesel number 2 as with Jet A fuel. Combustor blowout limits were similar for diesel number 2 and Jet A fuels.

• Research Organization: National Aeronautics and Space Administration, Cleveland, Ohio (USA). Lewis Research Center
• OSTI ID: 7339235
• Report Number(s): N-75-27010; NASA-TM-X-3255; E-8297
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AIRCRAFT
EXHAUST GASES
FUEL INJECTION SYSTEMS
DIESEL FUELS
COMBUSTION PRODUCTS
TESTING
JET ENGINE FUELS
CARBON MONOXIDE
COMBUSTION CHAMBERS
HYDROCARBONS
NITROGEN OXIDES
POLLUTION CONTROL EQUIPMENT
SMOKES
AEROSOLS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DISPERSIONS
EQUIPMENT
FUEL SYSTEMS
FUELS
GASEOUS WASTES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RESIDUES
SOLS
WASTES
330700* - Advanced Propulsion Systems- Emission Control
330800 - Emission Control- Alternative Fuels