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