EFFECT OF INLET OXYGEN CONCENTRATION ON COMBUSTIONnEFFICIENCY OF J33 SINGLE COMBUSTOR OPERATING WITH GASEOUS PROPANE

摘要

An investigation was conducted to determine the effect of oxygen concentration of the inlet oxygen-nitrogen mixture on the combustion efficiency of a J33 single combustor operating with gaseous propane fuel. Combustion efficiency data were obtained at combustor-inlet total pressures from 10.0 to 30.0 inches of mercury absolute, fuel flow rates from 0.008 to 0.016 pound per second, and inlet oxygen concentrations from approximately 14 to 46 percent by volume. The combustor-inlet temperature and weight flow rate of the oxygen-nitrogen mixture were held constant at 40° F and 1.0 pound per second, respectively. Attempts were made to correlate combustion efficiency with selected fundamental combustion properties and with a simplified reaction kinetics equation. The results were compared with those obtained from a similar previous investigation conducted with liquid isooctane fuel.