The ratio of thermodynamic work performed in the cylinder or casing (per stroke or per unit time) to the actual brake horsepower measured during the same stroke or time. Mechanical efficiency is expressed as a percentage and accounts for all mechanical friction losses.
Ratio of a component's output to the input, expressed as a percentage. The difference represents frictional and other losses.
is the ratio, expressed in percent, of the Thermodynamic Work Requirement in the cylinder to the actual shaft horsepower.
An engine's rating as to how much of the potential horsepower is wasted through friction within the moving parts of the engine. The ratio between the indicated horsepower and the brake horsepower of an engine.
The ratio of work done by a machine compared to the amount of energy used.
The ratio of the indicated power to shaft input. ( 010)
The percentage of input power as related to the output power in a mechanical transfer.
The percentage obtained by dividing the output of energy of a machine by its input energy, both expressed in the same units of energy.