I took a look at the Lienhard text but didn't find what I was looking for in terms of an equation. A colleague had mentioned I might be able to use the lumped parameter method but it didn't seem applicable since the air inside the cylinder will be increasing in temperature as the motor runs...
I have a very unusual problem. I was asked to compute the temperature rise in an enclosed cylinder that has a motor running inside. And the cylinder is underwater (seawater) with no ventilation.
I am a CE and have no experience in this area. I know that the heat losses due to the motor...