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Media / Novità su prodotti e servizi / Atlas Copco takes energy efficiency of centrifugal compressors to the next level

Atlas Copco takes energy efficiency of centrifugal compressors to the next level


Antwerp, Belgium, August 2013: Atlas Copco has launched a new, highly energy-efficient centrifugal compressor range which saves up to 7% on specific energy at full load and up to another 9% at part load.

Delivered as a plug-and-run package, the new Atlas Copco’s ZH 355+ - 900+ oil-free centrifugal compressor range employs advanced aerodynamics to reduce energy consumption in the core. Coupled with this, all the components of the package are designed based on Computational Flow Dynamic (CFD) analysis to drastically reduce pressure drops in the package.
The result is a reduction of specific energy up to 7% at full load compared to the previous model. Inlet guide vanes (IGVs), which are part of Atlas Copco’s standard scope of supply, further reduce energy cost by 9% at part loads as compared to a throttle valve control. As energy consumption constitutes about 80% of the life cycle cost of a compressor, users will benefit from day one, reducing the overall total cost of ownership.  Other than energy efficiency, reliability is a very important aspect. To ensure continuous production for the users ZH centrifugal compressors from Atlas Copco employ high-end features to ensure maximum uptime. Milled impellers and servo controlled inlet guide vanes (IGV) are only two examples of the entire list that contributes to a trouble free performance and high lifetimes.

The third aspect is the Class 0 certified quality of air. A fail-safe and unique sealing system prevents the possibility of contamination of the air with oil, without the need of any external buffer air. Oil fumes from the gear box are captured by a motorized demister, thus eliminating the risk of ingestion of oil fumes along with the intake air. This safeguards the end product of the customers against oil contamination.  
“The existing range of ZH turbo compressors is already considered  a benchmark for energy efficiency and reliability. The introduction of the new range raises the bar even higher” says Chris Lybaert, President of Atlas Copco’s Oil-free Air Division. “Atlas Copco is committed to sustainable productivity and it is our ongoing endeavor to bring to market the most energy efficient solutions year after year.”    

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Atlas Copco is an industrial group with world-leading positions in compressors, expanders and air treatment systems, construction and mining equipment, power tools and assembly systems. With innovative products and services, Atlas Copco delivers solutions for sustainable productivity. The company was founded in 1873, is based in Stockholm, Sweden, and has a global reach spanning more than 170 countries. In 2011, Atlas Copco had 37 500 employees and revenues of BSEK 81 (BEUR 9).

Oil-free Air is a division within Atlas Copco's Compressor Technique business area. It develops, manufactures, and markets oil-free air compressors for all kind of industries worldwide where the air quality is vital, and oil-injected compressors for less critical applications. The division focuses on air optimization systems and quality air solutions to further improve customers’ productivity. The divisional headquarters for the division is located in Shanghai with main production facilities in Belgium, China, India and Brazil.