Compressors / compressed air - Aircraft
Compressors / compressed air - Aircraft
Compressors / compressed air - Aircraft
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Piston compressors or screw-type compressors?<br />
The basic decision when installing a<br />
compressor station is to determine the type<br />
of compressor.<br />
Arguments piston compressors:<br />
· Intermittent demand<br />
Piston compressors are suitable for variable<br />
<strong>compressed</strong> <strong>air</strong> consumption with peak<br />
demands. They can be used as peak load<br />
machines in a compressor combination<br />
system. For frequent load changes, the<br />
piston compressors are the best choice.<br />
· Piston compressors are working with<br />
intermittent duty. They have no idle running.<br />
· little delivery quantities<br />
At little delivery quantities, the piston<br />
compressor is working more cost-efficient<br />
than the screw-type compressor.<br />
· Piston compressors can compress to high<br />
final pressures (8 bars, 10 bars,<br />
15 bars, 30 bars and 35 bars)*<br />
* Piston compressors with operating pressures of 30<br />
bars and 35 bars upon request.<br />
Conclusion<br />
If an operation with varying <strong>compressed</strong> <strong>air</strong><br />
consumption is required and you want to<br />
extend the installation only later on, a piston<br />
compressor is being recommended.<br />
72<br />
Both compressor systems have their<br />
particular advantages:<br />
New<br />
The series PREMIUM<br />
The piston compressors of the PREMIUM<br />
series are closing the gap between the screw<br />
compressors and the piston compressors.<br />
Another advantage of the PREMIUM series<br />
is that they can easily work in the switch off<br />
mode compared to screw compressors.<br />
Premium compressors generate less<br />
condensate in the oil due to their design. This<br />
is the reason why screw compressors should<br />
ideally run continuously. Frequent switching<br />
intervals should be avoided when working<br />
with screw compressors.<br />
However, the compressors of the Premium<br />
series can work in both modes:<br />
In the switch off mode as well as<br />
in continuous operation.<br />
This is optimum with regard to often deviating<br />
<strong>air</strong> requirement.<br />
New<br />
If there is an extensive constant high<br />
<strong>compressed</strong> <strong>air</strong> requirement , you should use<br />
a screw-type compressor.<br />
Arguments screw-type compressors:<br />
· High power-on time<br />
Screw-type compressors are specially<br />
designed to be used for continuous<br />
<strong>compressed</strong> <strong>air</strong> consumption without high<br />
peak demands (power-on time = 100 % ).<br />
They are perfectly appropriate as basic load<br />
machines in compressor combined systems.<br />
· large delivery quantities<br />
When ordering large delivery quantities, the<br />
screw-type compressor is the most costefficient<br />
variant.<br />
· Pulsation-free volume flow<br />
Due to the even compression, the screwtype<br />
compressor can also be used for very<br />
sensible <strong>compressed</strong> <strong>air</strong> consumers.<br />
· Screw-type compressors are working at<br />
Ultimate pressures of the compressor from 5<br />
to 14 bars most cost-efficient.<br />
· Almost vibration-free and very silent<br />
· latest drive and control technology<br />
New<br />
The choice of the correct system should not<br />
depend from the purchasing price, since it<br />
will rapidly pay off if you are saving on the<br />
occurring operating cost. Recurrent operating<br />
cost are not only energy cost for <strong>compressed</strong><br />
<strong>air</strong> generation but also idle running cost and<br />
maintenance cost.<br />
Built according to CE directives
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