Condition Monitoring of Forward Curved Centrifugal Blower Using Coast Down Time Analysis

Figure 1

Centrifugal Blower Experimental Test Rig. 1, Oil sump fitted with motor; 2, Oil entry hose pipe; 3, Oil exit hose pipe; 4, Journal bearing; 5, Z-Type Ball Bearings; 6, Forward Curved Centrifugal Blower; 7, Shaft; 8, Magnetic coupling; 9, Self-aligning P Block Bearings; 10, Variable Speed DC motor; 11, Supporting structure; 12, Clamping screws; 13, Motor supporting frame; 14, Load cell; 15, Misaligning adjusting steel plate; 16, Plate movement screw (lead screw attachment is not shown); 17, Four screws for vertical direction adjustment of steel plate; 18, Two leveling support bars; 19, Digital Vernier caliper; 20, Proximity switches; 21, Hotwire Anemometer; 22, Butterfly Valve; 23, Concrete base; and 24, Locations of Accelerometer.