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U.S. Department of Energy
Office of Scientific and Technical Information

300-Btu gas-combustor development program. Phase II. Final report

Technical Report ·
OSTI ID:5017204
This research project effort represents the second phase of a program directed towards developing a gas turbine combustor capable of meeting Environmental Protection Agency NO/sub x/ requirements when operated on medium heating value (MHV) coal-derived gas without the use of water injection. The overall program objectives were to design, fabricate, and test several lean-premix combustor configurations and demonstrate NO/sub x/ emissions of 15 ppMv (dry) or less at 1.27 atmospheres. Specific objectives of the Phase II effort were to improve ease of combustor fabrication and extend combustor operating range relative to Phase I designs. Two basic combustors were evaluated in the Phase II effort. The Configuration IV combustor represents a simplified multi-premix tube design while the Configuration V design is a two-stage combustor incorporating seven venturi-type premix elements. Tests were conducted in a single-can combustor rig at simulated engine conditions ranging from idle to 125% of engine baseload (74MW). Measured data included inlet and exit temperatures, pressures, and emissions of NO/sub x/, CO, CO/sub 2/, O/sub 2/, and total (unburned) hydrocarbons. Results showed that both combustors met the NO/sub x/ goal with concentrations of 14 ppM or less corrected (inlet pressure, percent O/sub 2/ and humidity). In addition, the Configuration V design demonstrated acceptable combustion efficiency/stability over the full range of simulated power levels.
Research Organization:
United Technologies Corp., South Windsor, CT (USA). Power Systems Div.; Pratt and Whitney Aircraft Group, West Palm Beach, FL (USA). Government Products Div.
OSTI ID:
5017204
Report Number(s):
EPRI-AP-2221; ON: DE82904631
Country of Publication:
United States
Language:
English