thanks for your reply.
after the fan is off the air keeps moving slower and slower because of friction, releasing the "heat" to the surrounding.
So are you suggesting that the electric energy is converted to
(1.1) kinetic energy of the fan
(1.2) friction loss of the fan, which is released as...
thanks for you reply.
that's my point exactly. only some of the fan motor energy out work to the air, so only part of the fan energy is "heating up" the air, right? so how would you determine the amount of heat gain from the fan by the air?
fellow engineers,
hi I'm totally new here so hello everyone.
I'm a mechanical HVAC design engineer and I have a question about fan power and fan heat gain/generation. My main concern is the temperature rise in the air passing through the fan.
I've been researching in books and on the...