In the present study, the 2-fluid nozzle and 3-fluid nozzle to atomize the diesel and water with air for the fuel
reformer of SOFC system were experimentally examined. In the 2-fluid nozzle, the diesel and water were alternately
atomized due to bislug flow pattern, and it implies that the mixing of both liquids strongly affects the atomization pattern.
On the other hand, in the 3-fluid nozzle, the diesel and water were atomized simultaneously due to the separated
injection channels without mixing problem. Therefore, compared to the 2-fluid nozzle, the 3-fluid nozzle is suitable
for the stable operation of the fuel reformer. In case of the 3-fluid nozzle, Type A where the air was supplied through
the central channel was the most efficient.