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HSCT Sector Combustor Evaluations for Demonstration EngineIn LET Task 10, critical development issues of the HSCT lean-burn low emissions combustor were addressed with a range of engineering tools. Laser diagnostics and CFD analysis were applied to develop a clearer understanding of the fuel-air premixing process and premixed combustion. Subcomponent tests evaluated the emissions and operability performance of the fuel-air premixers. Sector combustor tests evaluated the performance of the integrated combustor system. A 3-cup sector was designed and procured for laser diagnostics studies at NASA Glenn. The results of these efforts supported the earlier selection of the Cyclone Swirler as the pilot stage premixer and the IMFH (Integrated Mixer Flame Holder) tube as the main stage premixer of the LPP combustor. In the combustor system preliminary design subtask, initial efforts to transform the sector combustor design into a practical subscale engine combustor met with significant challenges. Concerns about the durability of a stepped combustor dome and the need for a removable fuel injection system resulted in the invention and refinement of the MRA (Multistage Radial Axial) combustor system in 1994. The MRA combustor was selected for the HSR Phase II LPP subscale combustor testing in the CPC Program.
Document ID
20040182585
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Greenfield, Stuart (General Electric Aircraft Engines Cincinnati, OH, United States)
Heberling, Paul (General Electric Aircraft Engines Cincinnati, OH, United States)
Kastl, John (General Electric Aircraft Engines Cincinnati, OH, United States)
Matulaitis, John (General Electric Aircraft Engines Cincinnati, OH, United States)
Huff, Cynthia (General Electric Aircraft Engines Cincinnati, OH, United States)
Date Acquired
September 7, 2013
Publication Date
October 1, 2004
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA/CR-2004-213132
E-14637
Funding Number(s)
WBS: WBS 714-09-46
CONTRACT_GRANT: NAS3-26617
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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