Exhaust Emissions Characteristics and Variability for Pratt and Whitney JT8D-7A Gas Turbine Engines Subjected to Major Overhaul and Repair.

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Abstract:

Seven Pratt and Whitney Aircraft PWA JT8D-7A turbofan engines were tested at Kennedy International Airport, New York, to evaluate exhaust emissions characteristics and data variability after overhaul. The measured data show that the engines tested did not meet the Environmental Protection Agency EPA emission standards. A comparison of the measured data, obtained from the seven overhauled engines evaluated under this program, with new engine data obtained from PWA show that there is a great deal of similarity between the two sets of data. Differences shown in this report between new engine and overhauled engine data are due to the quantity of the engines sampled the new engine data represent a larger sample size. Satisfactory data can be measured by using the test procedures, instrumentation, and equipment defined in this report. Author

Author(s):
Becker, Eric E. ; Frings, Gary ; Cavage, William C.
Author Organization(s):
FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
Descriptive Note:
Final rept. Nov 78-Feb 79,
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FAA-CT-79-53
 Subject Terms
Joint Capability Areas:
JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_4.3_Maintain; JCA_6_Net Centric; JCA_6.1.3_Switching and Routing; JCA_5_Command and Control; JCA_6.4.1_Secure Information Exchange; JCA_6.1.1_Wired Transmission; JCA_6.1_Information Transport; JCA_8_Building Partnerships; JCA_5.3_Planning; JCA_6.4_Information Assurance; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_3_Force Application; JCA_5.2.3_Share Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_8.1_Communicate; JCA_8.2_Shape; JCA_1.2.1_Training; JCA_1.2.5_Lessons Learned
Communities of Interest:
Air Platforms
Descriptor(s):
*TURBOFAN ENGINES, *AIR POLLUTION, *ENVIRONMENTAL IMPACT STATEMENTS, EMISSION, AIRCRAFT MAINTENANCE, HYDROCARBONS, CARBON MONOXIDE, NITROGEN OXIDES, AIRPORTS, EXHAUST GASES
Field(s)/Group(s):
Aircraft, Terminal Flight Facilities, Jet and Gas Turbine Engines
Keyword(s):
JT8D 7A gas turbines, Kennedy International Airport
Report Date:
1980 Sep 01