Exhaust Emission Characteristics and Variability for Maintained General Electric CF6-50 Turbofan Engines

Frings, Gary

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Exhaust Emission Characteristics and Variability for Maintained General Electric CF6-50 Turbofan Engines

1980-09-01
By Frings, Gary

File Language:

English

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Creators:

Frings, Gary
Corporate Creators:

Federal Aviation Administration Technical Center (U.S.)
Subject/TRT Terms:

Air Pollution Carbon Monoxide Exhaust Gases Nitrogen Oxides Turbofan Engines Turbojet Engines
Publication/ Report Number:

FAA-CT-80-36
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Abstract:

Five General Electric (GE) CF6-50 turbofan engines were tested at the GE overhaul facility 1n Ontario, California, to quantify and determine the variability or the exhaust emission levels. The effects of heavy maintenance on these emission levels were also studied. Only two of the engines tested actually received major maintenance. Consequently, the data collected is limited in quantity. Conclusions, observations, and recommendations are presented based on this limited data base. No correlation of exhaust emission levels and type of maintenance was possible. The exhaust emission levels of carbon monoxide, (CO) and oxides of nitrogen (NOx) have been determined; total hydrocarbon (THC) levels are not quantified. The variability of the CO and NOx spec1es is less than five percent. THC variability is almost 30 percent. The engine emissions did not meet the current or proposed federal standards. Ninety percent of the turbine engine exhaust emissions are produced at the idle power mode. The operational parameters for this important (from the standpoint of emission data collect ion) mode are vague and should be more defined. The type of fuel used for emission testing has a significant effect on the resultant exhaust emission levels.
Format:

PDF
Funding:

201-521-100
Collection(s):

FAA William J. Hughes Technical Center for Advanced Aerospace
Main Document Checksum:

urn:sha-512:d924c7523f8d6338e04f1bec9b197c09a6db41d31523e38ebbfa6c2dba4f3dd8437c1ea3792d11bce0d7666069583649241b82c46370de7c3b744a36ff4c2dcf
Download URL:

https://rosap.ntl.bts.gov/view/dot/90530/dot_90530_DS1.pdf
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[PDF - 21.09 MB ]

File Language:

English

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