Energy saving opportunities in Fan & Blower
Most important energy
efficiency options.
Minimize fan inlet and outlet obstructions
Use variable speed drives for large variable fan loads
Clean screens, filters and fan blades regularly
Minimize fan speed
Use low slip or flat belts for power transmission
Check belt tension regularly
Eliminate variable pitch pulleys
Eliminate leaks in duct works
Minimizing system resistance and pressure drops by improving the duct system
Ensure proper alignment between drive and driven system
Use smooth, well-rounded air inlet cones for fan air intake
Avoid poor flow distribution at the fan inlet
Turn fans and blowers off when not needed
For more click on below link...
http://mechanical-engineerinterviewquestions.blogspot.in/2014/10/fan-blower-and-capacity-control-methods.html
