Analysis of characteristics of the droplet behavior of emulsified fuel

Microexplosion of emulsified fuel is important variable affecting characteristics of spray behavior and emissions so that various studies on these fields have been widely performed.

The results of experimental about the effect of dispersed water droplet size in oil of emulsion fuel using showed that W/O it can be possible to identify an optimum, in connection with the microexplosion effect, in function of the dispersed water droplets size. The reason for these results could be found in the degree of phase separation before the microexplosion.

Suzuki et al. investigated the effect of aggregation of dispersed water droplets on secondary atomization of water-in-oil emulsified fuel droplets in heating process. They found that the occurrence probability of microexplosion increased in the case of initial volume rates of dispersed water droplets above 10−7.

It was suggested that the occurrence probability of microexplosion can be increased by controlling the aggregation and coalescence of the dispersed water droplets.

The flame spreading behavior of oil-in-water (O/W) and water-in-oil (W/O) emulsions along linear emulsion droplet arrays in a microgravity environment were investigated .

The surfactants of O/W and W/O emulsions used Emulgen 108 and Rheodol SP-O10V respectively.

The flame spread velocity increased by the initial droplet diameter and an increase in the droplet spacing. It was found that the O/W emulsion droplets were higher the probability of a disruptive microexplosion on heated surface at above 600 K than the W/O emulsion droplets.