Fan and blower systems are utilized in a wide range of applications, including residential, industrial, and plant settings. To ensure optimal performance, it is crucial to establish accurate specifications and make appropriate selections for these machines. This course will delve into the various types of fans and blowers, exploring their applications, structure, and operation. Participants will gain an understanding of the performance curves of these machines and their interaction with the duct system, which is vital for achieving trouble-free operation and minimizing machine downtime.

Course Objectives:

Learn to read and use correctly the fan performance curves
Learn how to calculate the performance curves of fans and blowers
Understand how different factors affect fan/blower performance
Learn how to write the right specifications, and do the right fan selection
Learn how to apply the related standards and specifications of fans

Who Should Attend?

Heads of Maintenance and Operation, Mechanical and Chemical Engineers, Equipment Specialists, Technical Engineers, Rotating Equipment Engineers, Vibration Monitoring Engineers, Planning Engineers, Lub

Course Outlines:

Fans and Blowers Fundamentals

Fan Types
Axial-flow Fans and Centrifugal Fans
Vane Types:
Backward-Curved Vanes, Airfoil Vane, Radial Vane, and Multiblade type,
Suction Type:
Setting Method
Rotor Supporting
Shaft Direction
Performance curves
Performance Terms
Fan Performance Data/Curves
Factors Affecting Fan Performance: improper inlet conditions, non-uniform inlet,
Measurement of fan performance curves
Outlet Duct Test Setup
Fan Performance Calculation
Fan Similarity Laws
Speed Change Fan Law
Size Change Fan Law
Density Effect
Fan Efficiency
Efficiency Factors
Efficiency Ratios

Fan Operation and Control

Performance Range
Fan Applications
System Resistance Data/Curves
Fan and System Interaction, Operating Point
Fan and System Matching
Effective Duct Length
Fan Operating Modes
Series Operation
Parallel Operation
Multi Staging
Surging and Pulsation Problem
Mechanics of Surging
Solutions for Surging
Fan Performance Regulation
Types of Dampers
Regulation by Outlet Damper
Regulation by Inlet Damper
Regulation by Inlet Box Damper
Regulation by Speed Control

Maintenance and Trouble Shooting

Vibration:
Vibration Sensitivity
Maximum Operating Speed
Torsional Vibration Analysis
Vibration Severity Charts
Shaft Design
Impact Testing
Duct Pulsation
High Motor Temperature
Noise
Sound Pressure Level
Poor Performance
High Bearing Temperature
Excessive Starting Time
Cleaning systems
Coupling Alignment
Tolerances
Balancing
Permissible Residual Unbalance
Balancing Quality Grades
Lubrication
Oil Lubrication
Circulating Oil System
Grease Lubrication
Fan Bearing Types
Erosion
Dust Loading
Particle and Gas Velocities
Particulate Flow Rate

Selection and Specifications

AMCA
Air Movement & Control Association International
Standards and Codes
Fan Selection

Filters