Compressed Air Engineering - 21 Pages

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Catalogue excerpts

As one of the world’s largest compressor manufacturers, KAESER KOMPRESSOREN is represented throughout the world by a comprehensive network of branches, subsidiary companies and authorised partners in over 60 countries. With innovative products and services, Kaeser Kompressoren’s experienced consultants and engineers help customers to enhance their competitive edge by working in close partnership to develop progressive system concepts that continuously push the boundaries of performance and compressed air efficiency. Moreover, the decades of knowledge and expertise from this industryleading system provider are made available to each and every customer via the Kaeser group’s global computer network. Basic principles, tips and suggestions KAESER Kompressoren GmbH P.O. Box 2143 – 96410 Coburg – gERMANY – Tel: +49 9561 640-0 – Fax: +49 9561 640130 www.kaeser.com – e-mail: productinfo@kaeser.com P-2010ED.9/10 Specifications subject to change without notice These advantages, coupled with KAESER’s worldwide service organisation, ensure that all products operate at the peak of their performance at all times and provide maximum availability.

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How much does your compressed air cost? To find out, ask KAESER for an analysis of your compressed air demand (ADA). 2. Ecient compressed air treatment You'll find more information in chapters 11 to 13 or in our brochure "Analysis and Advice". 4. Condensate: Correct drainage 5. Condensate: Safe, economical treatment 6. Ecient compressor control 7. Pressure band control: Optimised compressor performance to meet actual demand 8. Energy savings with heat recovery 9. Avoiding energy losses (1): Designing and installing a compressed air main 10. Avoiding energy losses (2): Optimising an existing air...

 Open the catalogue to page 2

How much does your compressed air cost? To find out, ask KAESER for an analysis of your compressed air demand (ADA). 2. Ecient compressed air treatment You'll find more information in chapters 11 to 13 or in our brochure "Analysis and Advice". 4. Condensate: Correct drainage 5. Condensate: Safe, economical treatment 6. Ecient compressor control 7. Pressure band control: Optimised compressor performance to meet actual demand 8. Energy savings with heat recovery 9. Avoiding energy losses (1): Designing and installing a compressed air main 10. Avoiding energy losses (2): Optimising an existing air...

 Open the catalogue to page 3

It’s the same with compressed air as with many other things in life: a small cause can have dramatic effect – both in a positive and negative sense. Upon closer inspection things are often different P can be calculated using the formula: 1. What is compressed air? from how they at first appear. In unfavourable conditions compressed air can be expensive, but in the right circumstances it is incredibly economical. Our tips are likely to provide better long term results than any clever advice that might be offered by an investment consultant. In this first chapter we will explain the terms used in...

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Choose the required grade of treatment according to your field of application: Air treatment using a refrigeration dryer (pressure dew point + 3 °C) Very clean conveying air, chemical plants Pure air and cleanroom technology Upon request Of course this depends greatly on local ambient conditions. Even in normally contaminated zones the hydrocarbons in the air caused by industry and traffic emissions can lie between 4 and 14 mg/ m³. In industrial areas, where oil is used as a lubricating, cooling and processing medium, the mineral oil content can be far in excess of 10 mg/ m³. Other impurities...

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When atmospheric air cools down, as is the case after compression in a compressor, water vapour precipitates as condensate. Under average conditions, a 30 kW compressor with a free air delivery of 5 m3/min at 7.5 bar 3. Why do we need to dry compressed air? will "produce" approximately 20 litres of condensate per shift. This condensate has to be removed from the air system in order to prevent potential damage and avoid costly production downtime. Compressed air drying is therefore an important part of the air treatment process. This chapter contains valuable information regarding economical and...

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Condensate is an unavoidable by-product of compressed air production. We have already discussed how it is formed in the chapter "Why do we need to dry compressed air" (pg. 8). We explained how, under average 1. Condensate drainage Condensate, contaminated by diverse pollutants, collects at certain points in every air system (see illustration above). Reliable condensate drainage is therefore essential, otherwise air quality, operational reliability and compressed air system efficiency can be seriously affected. a) Condensate collection and drainage points Initially, mechanical elements of the air...

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Considerable quantities of condensate occur as a result of compressed air production (see chapters 3 and 4). The term 'condensate' is misleading because it could be misunderstood to mean only condensed water vapour. Be these costs are typically between €40 and €150 per m³. In view of the amount of condensate accumulated, treatment would be the more economical approach. This method has the advantage that only approx. 0.25 % of the original volume is left over to be disposed of in accordance with environmental regulations. 5. Condensate: Safe, economical treatment careful! Every compressor works...

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In spite of its many advantages, compressed air is a relatively expensive energy source. This means that costs should be saved wherever possible. In many applications one of the main causes of increased costs is a mismatch of Dual Control Full-load – Off-load – Stop/start control Dual CP Control Constant pressure, continuous FAD control with proportional controller Idling Stopped 6. Efficient compressor control Idling Stopped % of rated motor power % of rated motor power Quadro Control Full-load – Off-load – Stop/start control with auto selection of optimum operating mode SFC (variable speed drive)...

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