青色炎燃焼における残さ重油の燃焼特性について

抄録

Study was made on the burning characteristics of residual fuel oils in the blue flame combustion by means of a small spray combustor. The following results were obtained from the study.
1) Effects of fuel properties on the flame length, the temperature profile and the combustion efficiency were very small.
2) Smoke density of exhaust gas decreased with the increase of air fuel ratio and increased with the increase in residual oil content of the fuel. Smoke density in the blue flame combustion is much lower than that in the yellow flame combustion.
3) Diameter of cenosphere in the exhaust gas increased with the increase in residual oil content of the fuel.
4) It is presumed that in this burning condition vaporization and burning of fuel droplets occur almost simultaneously in the flame and the flight distance required for thorough burning out of fuel droplet is nearly equal to the flame length.