4. Results and discussion
A set of experiments were performed in order to measure the pressure drop and collection efficiency of the cyclones.
First of all, the new cyclone with L¼480 mm and H¼490 mm was tested and the results were compared with the results obtained in the conventional cyclone with the same size of H¼490 mm and L1¼970 mm (Fig. 3). The values of the inlet
velocities were 15–19.5–22.5 m/s. As it can be seen from the figure, the new cyclone gives generally higher pressure drop
(Fig. 3a). However, particle collection efficiency of the new cyclone is better comparing to the
4. Results and discussion
conventional one, especially
for high flow rates (Fig. 3b). On the other hand, the position of the vortex limiter (i.e. L) is adjustable. Therefore, the
collection efficiency of the new cyclone can be increased by adjusting the position of the vortex limiter according the flow
rate. As it can be seen from Fig. 4, adjusting the position of the vortex limiter leads to an increase up to about %5 in
efficiency of the new cyclone while pressure drop is almost the same with the conventional cyclone.