AMCA International Technical Seminar 2009 AXIAL FANS Presented

AMCA International Technical Seminar 2009 AXIAL FANS Presented by: John Murphy, JOGRAM, Inc.

The Air Movement and Control Association International (AMCA), has met the standards and requirements of the Registered Continuing Education Providers Program. Credit earned on completion of this program will be reported to the RCEPP. A certificate of completion will be issued to each participant. As such, it does not include content that may be deemed or construed to be an approval or endorsement by NCEES or RCEPP.

Learning Objectives • • Understand principles of operation Understand differences in fan types Recognize good selection techniques Recognize good installation practices

BASIC AERODYNAMICS

BASIC AERODYNAMICS

ROTOR DESIGN

PERFORMANCE

PRESSURE COMPONENTS

FAN TYPES

BIFURCATED FAN

VANEAXIAL FANS

TYPICAL CHARACTERISTIC CURVE VANEAXIAL FAN

AXIAL FAN CURVE

TIP CLEARANCE

TWO STAGE FANS

TYPICAL CHARACTERISTIC CURVE VANEAXIAL FAN

TUBEAXIAL FANS

TYPICAL CHARACTERISTIC CURVE TUBEAXIAL FAN

PROPELLER FANS

SOUND COMPARISON

VANEAXIAL FANS

ADJUSTABLE PITCH

CONTROLLABLE PITCH

AXIAL FAN CURVE

PRESSURE COMPONENTS

VELOCITY PRESSURE RECOVERY

VELOCITY DISTRIBUTION CORNERS

VELOCITY DISTRIBUTION ABRUPT EXPANSION

VELOCITY DISTRIBUTION ABRUPT CONTRACTION

VELOCITY DISTRIBUTION STEEP CONTRACTION

JET FANS

JETFAN DURING TEST

Questions?