掺混长直链烷烃对航空煤油雾化性能影响

将藻基生物航空煤油加工过程的中间产物C13~C18分别与航空煤油按10%比例进行掺混，对掺混燃油的喷雾雾化性能进行了对比研究。结果表明:随掺混直链烷烃碳数增加，对燃油喷雾雾化影响逐渐增大。其中按10%比例掺混直链烷烃C18:雾化锥角最大减幅为5.07%；液滴平均速度最大变化17.6%；索泰尔平均直径最大变化15%；Ohnesorge数和韦伯数随着喷射压力增加而明显变化，会对液滴二次破碎产生影响。总体来说，加入长直链烷烃会对航空煤油的雾化性能产生一定的影响。 

Atomization performance effects of aviation kerosene mixed with long straight-chain alkanes

The intermediate products C13—C18 of algae-based aviation kerosene were blended with aviation kerosene at a ratio of 10%, and the spray atomization performance of blended fuel oil was compared. In this experiment, as the carbon number of blended linear paraffins grew, the effect of atomization on fuel spray gradually increased. Among them, the linear alkanes C18 was blended at a ratio of 10%: the maximum reduction of the atomizing cone angle was 5.07%; the average droplet speed was changed by a maximum of 17.6%; Sauters average diameter was changed by a maximum of 15%; Ohnesorge number and Weber number significant changed with increasing injection pressure, affecting the secondary breakage of droplets. In general, the addition of long linear alkanes will have a certain influence on the atomization performance of aviation kerosene.