Single Stage Centrifugal Compressor Development

• Kevin Finney• Ray Zhou• Xiaoyi Li• Krishna Murty• Jinying Zhu• Brian Gulliver• Dipjyoti Acharya

July 23, 2003

CompressorMotorCoupler

• Curved Blade Impellers– Balancing completed and parts returned

• Extra Motor and Controller Ordered– Should arrive September 5th

– Extra controller in rotation• Straight Blade Impeller

– Being sent to American Hoffman for balancing• Inlet Guide Vane

– Received from 3-Dimensional Engineering

Status of Compressor Parts

Status of Compressor Parts

• Collector– Manufactured and assembled

with pipe flanges– Ready for attachment to mass

flow meter

Compressor Testing

• Motor Characterization– Free Spin Power Test

Motor Free Spin Power Consumption

0

20000

40000

60000

80000

100000

120000

140000

160000

180000

0 50 100 150 200 250

Input Power (W)

Shaf

t Spe

ed (R

PM)

OscilliscopePoly. (Oscilliscope)

Compressor Testing Issues• Controller Problem

– Occurred after free spin test– Received new controller from Koford– Ran motor since and new controller works

Compressor Testing

• Blank Shaft Testing– Bearing and coupler

losses – Shaft Alignment

Compressor Assembly Animation

Future of Compressor Development

• Run coupler and bearing test• Attach pressure and temperature

transducers• Run compressor with curved and straight

blade impellers• Compare results of both impellers