New industry standard for energy efficiency
April 1st 2008 Atlas Copco has yet again proven its leadership in air-compressor manufacturing
with the introduction of the new GA 90-160kW range of oil-injected compressors.
Every component in the new GA range has been carefully evaluated and designed
to provide Atlas Copco's customers with a product offering the highest levels of
reliability and energy efficiency
This new range of GA+ oilinjected
compressors is the
result of continuous
investments in product development
and it will further strengthen our
leadership in compressor technology,"
explains Ronnie Leten, president of
Atlas Copco's Compressor Technique
Business Area."The company's drive
for energy efficiency, while keeping
environmental protection and
climate change issues in mind, has
resulted in a completely new range
of compressors in line with Atlas
Copco's vision."
Atlas Copco has a long history of
understanding their customers'main
concern:Maximising production in a
superior and highly-efficient manner.
To meet these needs,Atlas Copco
focuses on eliminating production
downtime and minimising the cost
of compressed air produced. Fullfeatured
products, integrated
Variable Speed Drive (VSD) and the
development of customised
solutions are only a few examples of
innovations that meet or exceed
individual requirements for reliability,
air quality and energy efficiency.
Energy efficiency in the new GA
range is achieved through,among
other things, state-of-the-art
compression elements based
on Atlas Copco's patented
asymmetric rotor
profiles, which
drastically
reduce
volumetric
losses.
Through the
optimisation of oil
injection, flow and
temperature, the
compression process
is kept at the coolest
possible temperature,
thereby minimising
thermodynamic
losses.
"However", says Paulo
Pereira, GA product manager at Atlas
Copco,"the most efficient
compressor package goes beyond
simply having an efficient screw
element. For instance, it is also
crucial to optimise all the elements
around the core component. In the
development process of the new
GA,we made substantial efforts to
reduce all types of losses, whether
flow-related, mechanical or
electrical.The latest design
techniques such as Computational
Fluid Dynamics (CFD) analysis were
used to meet these objectives."
Other design features to further
reduce energy consumption include
the use of radial fans with VSD
regulation, high-efficiency motors
and no-loss drains. Extra energysaving
options such as an integrated
energy recovery
system and/or VSD
for the main motor
can provide
even greater
benefits.
In tandem
with its new GA
compressors and
once again as the result
of continuous efforts to
improve its
core products,
Atlas Copco has also
developed a new range of integrated
and stand-alone refrigerant dryers
with energy saving features such as
"Saver Cycle Control"and highlyefficient
heat exchangers with
minimal pressure drops.
With all these features,Atlas
Copco offers its customers the bestin-
class efficiency for their
compressed air systems.
Reliability is assured in particular
thanks to Atlas Copco's in-house
designed asymmetric screw rotor
profiles. Furthermore, the robust and
compact design of the new GA
ensures continuous operation under
the most demanding conditions,
such as ambient temperatures of up
to 55°C/131°F and in dusty
environments.These features
dramatically increase component
and unit lifetime.
Air quality is provided by two key
elements:A highly-efficient oil removal
system to give minimum residual oil
content in the outlet air and state-ofthe-
art refrigerant dryers, available in
both integrated and stand-alone
versions. More articles from Atlas Copco Compressors Ltd: | 
