Accession Number:

ADA242692

Title:

Feasibility of Reburning for Controlling NOx Emissions from Air Force Jet Engine Test Cells

Descriptive Note:

Final rept. Oct 88-Apr 89,

Corporate Author:

PSI TECHNOLOGY CO ANDOVER MA

Personal Author(s):

• Johnson, Stephen A.
• Katz, Charles B.

Report Date:

1989-06-01

Pagination or Media Count:

78.0

Abstract:

The objective of this study was to determine the technical and economic feasibility of reburning as a NOx control technique for Air Force jet engine test cells. Work included laboratory-scale testing of a prototype reburner, a preliminary reburn system design, and an estimate of capital and operating costs for a hypothetical JETC rated at 600 lb airsecond. The study shows that 60 percent NOx reduction on a mass basis 80 percent on a lbMBtu basis can be achieved, but large NOx reductions require excessive amounts of reburning fuel natural gas. Pressure loss across the reburner did not exceed 0.1 in. of water. Laboratory results suggested a full-scale reburner design rated at 150 million Btuhr. Four reburners located in a separate combustion chamber downstream of the augmenter tube would be required for the hypothetical JETC. Capital cost for the retrofit was estimated to be 3 million operating costs were 2 millionyear based on 800 hours of testing per year at a constant reburning fuel flow rate to minimize hydrocarbon as well as NOx emissions. Operating the reburner only at military and afterburner engine modes NOx control only could cut the operating cost by 50 percent. Reburner developments to minimize fuel usage would make the technology more attractive.

Descriptors:

• *EMISSION
• WATER
• COSTS
• FUELS
• FLOW RATE
• FEASIBILITY STUDIES
• HYDROCARBONS
• PRESSURE
• COMBUSTION CHAMBERS
• ENGINES
• LABORATORIES
• LOSSES
• RETROFITTING
• NATURAL GAS
• AFTERBURNERS
• ECONOMICS

Subject Categories:

• Combustion and Ignition
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE