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Torque estimation of an AC compressor

by sribalaji
Tags: compressor, estimation, torque
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sribalaji
#1
Jan30-13, 10:46 PM
P: 1
Hi all,
I'm planning to drive the automobile ac compressor via a BLDC motor instead of IC engine. This is only when the vehicle is parked. Now, I'm trying to determine torque requirement. Is my calculation correct?
Power consumption: 1.46 kW
compressor speed : 1000rpm
torque=5252*hp/1000
= 14Nm

Is this value too high to be driven by a motor for a speed of 1000rpm?
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256bits
#2
Jan31-13, 04:15 AM
P: 1,411
Well, 14 N-m seems right.
You have a 1.46kW (2 HP) motor BLDC in your possession?
russ_watters
#3
Jan31-13, 09:38 AM
Mentor
P: 22,234
You did the calculation correctly (though a little roundabout)


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