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Ultra-lean combustion at high inlet temperaturesCombustion at inlet air temperatures of 1100 to 1250 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 to the 5th power Pa, with reference velocities of 32 to 60 m/sec and at maximum combustion temperatures of 1350 to 1850 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 NO2/kg fuel for combustion temperatures below 1680 K. Carbon monoxide emissions were less than 16 g CO/kg fuel for combustion temperatures greater than 1600 K, inlet air temperatures higher than 1150 K, and residence times greater than 4.3 microseconds.
Document ID
19810005886
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Anderson, D. N. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1981
Subject Category
Energy Production And Conversion
Report/Patent Number
DOE/NASA/1011-33
NASA-TM-81640
E-677
Meeting Information
Meeting: Intern. Gas Turbine Conf.
Location: Houston, TX
Country: United States
Start Date: March 8, 1981
End Date: March 21, 1981
Sponsors: ASME
Accession Number
81N14398
Funding Number(s)
CONTRACT_GRANT: EC-77-A-31-1101
PROJECT: RTOP 947-48-32
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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