Specific Power Consumption
Specific power consumption is the ratio of the power
consumed by an engine to a certain force such as the amount of output the engine
(equipment) produces. It allows engines (equipments) of all different sizes to
be compared to see which is the most power efficient. It allows manufacturers
to see which engine (equipment) will use the least power while still producing
a high amount of output.
Specific power
consumption of Air compressor
The ratio of power consumption (in KW) to the volume delivered
at ambient conditions.
Specific power consumption=
Actual power consumed by the compressor/Measured free air
delivery
If the measured flow is 250 m3/hr and actual power
consumption is 30KW.
=0.08 KW/M3/hr
For find out Air compressors Specific power requirement
following procedure is carried out:
1)
Find out actual power consumed with the help of
electric power analyzer
2)
Find out free
air delivery by measuring compressor FAD with the help of pump up method or nozzle
method.