Indicated Power


Also found in: Dictionary.
Related to Indicated Power: Brake Thermal Efficiency

Indicated Power

 

(of an engine), the useful work performed by the gases in the cylinder of a piston engine per unit time; it is determined by the analysis of indicator cards made during engine tests.

The indicated power of a given engine is different under different operating conditions. The relation of indicated power to the frequency of revolution is called the speed characteristic. Indicator cards are read at various frequencies of revolution in order to plot the speed characteristic of the indicated power. The indicated power at a given frequency of revolution is determined by measuring the areas of the cards. The indicated power is partially consumed in overcoming the frictional forces within the engine and setting the auxiliary mechanisms in motion. The indicated power may be defined as the sum of the power produced at the crankshaft (actual horsepower) and the power consumed by losses (friction horsepower).

References in periodicals archive ?
The indicated power and the electric power consumption are still larger than those for the reference case (no oil atomization).
A slight variation is seen in the indicated power and COP with respect to the nozzle position.
This is due to an increase in indicated power associated with the high oil fraction in the discharge stream.
The analysis will provide all the essential data about the engine including the mean indicated pressure, indicated power, firing pressure, and the correspondence between the crank angle and pressure.
s], to the indicated power is the mechanical efficiency, [[eta].
Since the experimental indicated power is obtained by connecting three pressure signals, it contains a relatively large uncertainty of about 5%.
Asked what woodworking tools or supplies they would most like to receive as a gift, woodworkers indicated power tools were the hottest items, followed closely by hand tools.
Among the highlights of Certiport study findings, more than 69 percent of teachers participating in the study indicated Powers Users influence what they teach, and 66 percent stated Power Users influence how they teach.