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Experiment and Numerical Studies on the Atomization of a Swirl Feed Nozzle

Qilong Huang and Jinxian Li
College of Astronautics, Northwestern Polytechnical University, Xi’an, Shaanxi, China

Abstract—Experimental and numerical investigation of spray characteristic of a swirl fluid catalytic cracking (FCC) feed nozzle was presented. In the experiment, the spray angle and sauter mean droplet (SMD) were measured. Then pressure drop on each section of nozzle was verified. Volume of Fluid (VOF) method was used to simulate the gas-liquid flow process in swirl FCC feed nozzle. The simulation exhibited the process of two-phase flow filling feed nozzle. The nozzle pressure were calculated, which were validated by the experimental data with good agreement. The results show that: the SMD size of feed nozzle was 59-74μm; nozzle with short sheet had the smallest SMD; cross grille in nozzle effectively inhibited the flow rotation. 

Index Terms—FCC feed nozzle, SMD, two-phase flow, VOF

Cite: Qilong Huang and Jinxian Li, "Experiment and Numerical Studies on the Atomization of a Swirl Feed Nozzle," Journal of Industrial and Intelligent Information, Vol. 4, No. 1, pp. 92-95, January 2016. doi: 10.12720/jiii.4.1.92-95
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