Contents
Contents
Fan Training.
Welcome
Parts of a Fan:
Centrifugal Fan
Axial Fan
Gas Density
Actual versus Normal Flow
How a Centrifugal Fan Works
Fan Laws and Scaling
Fan Testing
Fan Pressure Definitions
General
Standards
Typical Shop Test
Site Testing
Centrifugal Fan Design
Blade & Fan Types
Critical Design Features
Different Proportions
Anti Spark Construction
Fans Operating in Parallel
Fan Classes
Scalloped Back plates and Shrouds.
Air and Dust
Clean air
Dusty and Sticky Particles
Wear Plates
High Speed versus low speed when handling dust
Starting the Fan
Inertia and fan starting time
Star Delta Starting
Noise
Internal Sound Power Level
Inlet and Outlet
Breakout
A Weighting Values
Flanking
Flow Control
Inlet vanes
Inlet and Outlet Dampers
Variable Speed
Fan Arrangements
Standards
Overhung versus Centre hung impellers
Belt Driven Fans
Mechanical Design
Impeller stresses
Shaft design
Bearings
Impeller Stiffness
Pedestal and Foundation Stiffness
Casing Stiffness
High temperature fans
Expansion and Bearing Cooling
Heat Radiation Shield
Creep (materials)
Vibrations
Sources of Vibration
Anti Vibration Mounts
Resonance
Aerodynamic
Inlet Boxes
Inlet vane vibrations
Surge and Stall
Troubleshooting
Commissioning
Finite Element Analysis
Heat Transfer
Linear static analysis
Nonlinear analysis
Frequency analysis