Course Objective
"Why isn't this fan working like it used to?" This is a question that maintenance workers, not engineers, are often required to answer. Is the fan the problem or is the problem the system in general? This session will equip workers with the fundamentals and troubleshooting skills to solve problems with fans, air moving and other gas moving systems.

Benefits
Worker will be able to troubleshoot fan operation problems from performance curves
Optimize fan life through proper maintenance practices

Activities
Fan performance estimate from fan laws
Simple fan balancing exercise

Outline

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Introduction
Fans vs. Blowers vs. Compressors
Standard Nomenclature for Fan Components
The Effect of Speed, Blade Design, Wheel Dimensions, and Housing Design on Fan Operation

Centrifugal Fans and Applications
Radial Blade Fan Advantages and Applications
Squirrel Cage Designs and Applications
Axial Fan Design and Applications

Fan Performance Characteristics
Fan Performance - Static Pressure, Total Pressure, Efficiency , and Horsepower
Measuring Air Flow and Developing System Curves
Fan Selection Tables and Fan Laws

Fan Maintenance
Dampers, Vanes and Variable Speed Control
Noise, Vibration and AMCA Limits
Quick and Simple Fan Balancing
Fan Bearing Installation, Maintenance and Lubrication