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

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)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA091011

Entities

People

  • Eric E. Becker
  • Gary Frings
  • William C. Cavage

Organizations

  • Federal Aviation Administration

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Combustion
  • Compressors
  • Data Acquisition
  • Detectors
  • Dielectric Gases
  • Electrical Resistance
  • Exhaust Nozzles
  • Gas Turbines
  • High Temperature
  • Low Temperature
  • Measurement
  • Plastic Explosives
  • Research Facilities
  • Standards
  • Turbines
  • Turbofan Engines

Readers

  • Aerospace Engineering
  • Computational Modeling and Simulation
  • Environmental Remediation and Restoration.