Review Article
A Critical Review of Stall Control Techniques in Industrial Fans
Table 1
Safety factors derived from strain gauge data for a fan at full and part speed [
7].
| | Fan type | % design speed | Normal operating safety factor | Stalled operating safety factor |
| | Plane casing, stalling blade angle | 100 | 2.3 | 0.3 | | Plane casing, stalling blade angle | 50 | 10.0 | 2.5 | | Plane casing, stalling blade angle | 25 | 106.0 | 7.3 |
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