Page 164 - Air Pollution Control Engineering

03_chap_wang.qxd 05/05/2004 12:48 pm Page 143
Cyclones 143

Table 22
Results of the Grade Efficiency of the SRI II Cyclone, Operating at 38.2 L/min
D (µm) F θ f(θ) η
ae s i
1.1 1.15318 −0.5427 −5.40153 0.00449
1.2 1.14041 −0.5039 −4.95194 0.00702
1.4 1.12035 −0.4263 −4.08240 0.01659
1.6 1.10531 −0.3487 −3.25220 0.03725
1.8 1.09360 −0.2712 −2.46122 0.07862
2.0 1.08424 −0.1937 −1.70929 0.15326
2.2 1.07659 −0.1162 −0.99636 0.26966
2.4 1.07020 −0.0387 −0.32246 0.42008
2.5 1.06740 0 0 0.5
2.6 1.06480 0.0387 0.31252 0.57750
2.8 1.06017 0.1162 0.90857 0.71271
3.0 1.05616 0.1936 1.46572 0.81241
3.2 1.05265 0.2711 1.98397 0.8791
3.4 1.04956 0.3486 2.46336 0.92153
3.6 1.04680 0.4260 2.90382 0.94804
3.8 1.04434 0.5035 3.30545 0.96462
4.0 1.04212 0.5809 3.66818 0.97511

Fig. 22. Collection efficiency curve for the the SRI II cyclone operating at 38.2 L/min com-
pared to the PM (WINS) criterion.
2.5