Performance of cylindrical-conical cyclones with different geometrical configurations

The present work is a continuation of a study of the influence of geometric characteristics on the performance of reverse-flow cylindrical-conical cyc lones. After studying the behavior of the pressure drop in previous work (A rnosti et al., 1998), here performance in terms of collection efficiency in the removal of particulate material is addressed. The independent variable s considered in this study were inlet gas velocity (three velocities) and t he following dimensions of the cyclone: the cylindrical section (three heig hts) and internal height of the gas exit duct (three heights). The tests we re performed using an 3(3) experimental design. Analysis of the results for overall efficiency was carried out using response surfaces and the statist ical parameters were estimated from linear regression.