USE OF FLUIDIC OSCILLATOR TO MEASURE FUEL-AIR RATIOS OF COMBUSTION GASES

摘要

A fluidic oscillator was investigated for use in measuring fuel-air ratios in hydrocarbon com¬bustion processes. The oscillator was operated with dry exhaust gas from an experimental combustor burning ASTM A-l fuel. Tests were conducted with fuel-air ratios between 0.015 and 0.031. Fuel-air ratios determined by oscillator frequency were within 0.001 of the values computed from separate flow measurements of the air and fuel.