Abstract
We developed an instrument which determines the sizes of sprayed droplets with a high-accuracy. By applying this instrument to the measurement of droplets formed by spraying kerosene (JIS K 2203), we found that the Sauter diameter ranged from 8 to 35 μm and that the mean diameter was almost in agreement with the diameter of droplets generated by other general spray methods. Furthermore, we observed the droplets passing through a diffusion flame formed by the combustion of butane and found the relationship between the droplet velocity and droplet diameter.
