Accession Number:

ADA162451

Title:

Fuel Property Effects on Combustion.

Descriptive Note:

Final rept. Sep 84-Apr 85,

Corporate Author:

AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1985-10-01

Pagination or Media Count:

20.0

Abstract:

This report deals with fuel property effects on gas turbine engine combustors. In order to increase jet fuel availability and decrease cost, the Air Force is investigating alternate feedstocks such as tar sands, shale oils, heavy oils, and coal derived fuels. As these lower quality feedstocks begin to play a major role as sources of military jet fuels, it becomes increasingly important to be able to evaluate the effects of these fuels on engine life and performance. These effects have usually been measured using expensive and time-consuming engine tests. Of major concern in each of these programs was the effects of fuel properties and composition on soot formation, and the effects of soot on engine performance and durability. Being able to predict the change in soot formation due to changing fuel properties would be an invaluable tool in future research and development efforts to eliminate soot formation and its deleterious effects on engines. The reduction in exhaust plume, through reduced soot formation, reduces a vehicles visibility for tracking and targeting purposes, thus increasing its survivability. It was concluded that smoke and combustion linear radiative heating correlate well with hydrogen content. That hydrogen content is as effective as any parameter at predicting soot formation and the questioning of the validity of the data, and the need for more and better data.

Subject Categories:

  • Fuels

Distribution Statement:

APPROVED FOR PUBLIC RELEASE