Instruction manual

www.cs-instruments.com
23
Consumption
Consumption and flow
measurement
Cost saving
In Germany 60,000 compressed air plants use 14,000,000,000 kWh
electrical energy per year. 15 to 20% could be easily saved
(Peter Radgen, Fraunhofer Institut, Karlsruhe). Most of these costs
are caused by leakages in the compressed air system. The air
"escapes" unused. 1 leak with a diameter of 1 mm causes costs
of approximately 270 EUR/year
The leak detector LD 300 (please see page 40) will be payed off
after 4 leakages
Cost distribution in compressed air systems:
Equipment
Maintenance
Electricity
Example for a calculation of leakage costs at different pressures:
Leak Ø Air loss at Air loss at Energy loss kWh Energy loss kWh Costs € p.a. Costs € p.a.
(mm) 6 bar (l/s) 12 bar (l/s) at 6 bar at 12 bar at 6 bar at 12 bar
1 1.2 1.8 0.3 1.0 144 480
3 11.1 20.8 3.1 12.7 1,488 6,96
5 30.9 58.5 8.3 33.7 3,984 16,176
10 123.8 235.2 33.0 132.0 15,840 63,360
Source: www.druckluft.effizient.de