how do we know the heat given out by the motor. if we only know the KW?

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how do we know the heat given out by the motor. if we only know the KW?

to calculate the heat load

2006-09-28 00:50:37 · 2 answers · asked by 360jh 1 in Science & Mathematics ➔ Engineering

2 answers

You would also have to know the efficiency of that motor.
Whatever is 100% minus efficiency is wasted in heat.
(even including any meachanical friction).

2006-09-28 01:14:40 · answer #1 · answered by Marianna 6 · 0⤊ 0⤋

Squirrel cage motors are actually a rotary transformer.....!!!
Transformers and SC motors are one of the most efficient pieces of equipment known with efficiencies of up to 98%.
The losses is the heat generated by.
friction (windage)
Copper IÂ²R
Iron losses
They are all additive and result in watts loss

2006-09-29 15:39:01 · answer #2 · answered by Barrie66 2 · 0⤊ 0⤋