Alternate-Fueled Combustor-Sector Performance.

Accession Number

N20120003418

Publication Date

Feb 2012

Media Count

Personal Author

A. Lynch A. E. Thomas C. Neuroth C. W. Frayne D. T. Shouse E. Corporan J. S. Stutrud N. T. Saxena R. C. Hendricks T. Hankins

Abstract

In order to realize alternative fueling for military and commercial use, the industry has set forth guidelines that must be met by each fuel. These aviation fueling requirements are outlined in MILDTL- 83133F(2008) or ASTM D 7566 Annex (2011) standards, and are classified as drop-in fuel replacements. This paper provides combustor performance data for synthetic-paraffinic-kerosene- (SPK-) type (Fisher-Tropsch (FT)) fuel and blends with JP-8+100, relative to JP-8+100 as baseline fueling. Data were taken at various nominal inlet conditions: 75 psia (0.52 MPa) at 500 F (533 K), 125 psia (0.86 MPa) at 625 F (603 K), 175 psia (1.21 MPa) at 725 F (658 K), and 225 psia (1.55 MPa) at 790 F (694 K). Combustor performance analysis assessments were made for the change in flame temperatures, combustor efficiency, wall temperatures, and exhaust plane temperatures at 3%, 4%, and 5% combustor pressure drop (% delta P) for fuel: air ratios (F/A) ranging from 0.010 to 0.025. Significant general trends show lower liner temperatures and higher flame and combustor outlet temperatures with increases in FT fueling relative to JP-8+100 fueling. The latter affects both turbine efficiency and blade/vane life.

Keywords

Combustion chambers
Combustion temperature
Engine inlets
Engine tests
Fischer-tropsch process
Gas turbine engines
Jp-8 jet fuel
Linings
Plumes
Synthetic fuels
Wall temperature


$33.00-COLOR DOCUMENT

Source Agency

National Aeronautics and Space Administration

NTIS Subject Category

97K - Fuels
81J - Reciprocation & Rotating Combustion Engines

Corporate Author

National Aeronautics and Space Administration, Cleveland, OH. NASA John H. Glenn Research Center at Lewis Field.

Document Type

Conference proceedings

Title Note

N/A

NTIS Issue Number

1219

Contract Number

N/A

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter