What are the practical benefits/drawbacks of each type of motor/fan combination?
I know ceramic bearings are often considered "the best" but they are incredible expensive and have long lead times.
This is for mechanical applications, from Air Handlers, Exhaust Fans and even some process...
So I know that you can use energy recovery units (heat plate, heat pipe and energy recovery wheels) to reclaim the heat in air, but it only puts it back into the air (like in winter conditions).
What if you wanted to turn the heat in air into kinetic or electric energy?
Hot air turning fans...