Flight tests were conducted which evaluated the use of ethanol as a blending agent for turbine fuels. As part of this study, a Beech King Air 200 was modified to incorporate a cabin tank which contained ethanol, and the fuel system was modified to deliver the ethanol to the starboard engine. Ten percent ethanol was mixed with JP-4 in the project fuel line, just before entering the engine. The test was performed over a broad range of operating conditions, and key performance parameters were measured. The use of ethanol as a blending agent reduced the power available and resulted in an increase in fuel consumption. The increase in fuel consumption was greater than the decrease in energy density. When operating on the ethanol/JP-4 mixtures, the test pilots noted the test engine required more throttle (throttle stagger). Ethanol, Turbine engines, Alternate fuels, Flight tests. (jes)
In-Flight Evaluations of Turbine Fuel Extenders
1990
37 pages
Report
Keine Angabe
Englisch
Jet & Gas Turbine Engines , Fuels , Aircraft cabins , Density , Energy , Engines , Ethanols , Flight testing , Fuel consumption , Fuel lines , Fuel systems , Inflight , Parameters , Pilots , Test and evaluation , Throttling , Turbines , Aviation fuels , Fuel additives , Gas turbines
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