Heat Loss
Heat Loss
(OP)
Is it possible to assess the heat loss from a 6Mw 4p 6kv motor with an efficiency of 97% (FL) and assumming the secondary cooling circuit is routed away ( air or water ), what heat would be rejected into the room.
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RE: Heat Loss
If the driven machine is a pump with cool water so that not much heat is emitted from the machine (pump, for instance). Then the heat emitted from the motor becomes significant. It can be found from surface temperature, total surface and emittivity. You can use the same formula that you use to compute emission from a wall into a room.
In the second case, you can (in theory) force so much coolant through motor that the external surface is around room temperature. Then, you will not have any heating in the room.
Gunnar Englund
www.gke.org
RE: Heat Loss
RE: Heat Loss
RE: Heat Loss
This is starting to sound like a school question.