American AI is usually American Airlines, and usually appears because of a baggage fee paid at the airport, or a purchase made during a flight. posted 09/11/2012 Helpful (4)
Electric motors are in general, a lot more efficient that internal combustion engines. An average combustion engine has about 18â20%. A formula one engine, has about 50% of an efficiency.
VFDs aside, the internal efficiency of a motor changes with load. Peak efficiency for most motors at a fixed speed is actually at about 75% load rather than at rated horsepower. However, the difference in efficiency between 75% and 100% load is negligible, typically below 1%.