Experience in the Operation of Air Filters in Gas Turbine Installations FREE

[+] Author Affiliations
T. Zaba, P. Lombardi

BBC Brown, Boveri & Co. Ltd., Baden, Switzerland

Paper No. 84-GT-39, pp. V004T10A009; 8 pages
  • ASME 1984 International Gas Turbine Conference and Exhibit
  • Volume 4: Heat Transfer; Electric Power
  • Amsterdam, The Netherlands, June 4–7, 1984
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7949-8
  • Copyright © 1984 by ASME


Industrial gas turbines swallow air at a rate of approximately 14 to 16 kg/kWh. Even in clean environments the amount of solid particle ingestion is significant. A 70.000 kW gas turbine operating in a typical residential area could ingest 1.3 to 1.5 kg of solid contaminants in a 24 hour period. The same gas turbine operating in a typical mining or oil field region could ingest 33 to 39 kg of solid contaminants in a 24 hour period. Depending on the composition, size, quantity and condition (wet, dry, sticky) of the ingested particles, performance loss, due to the fouling of the compressor and/or turbine and hardware deterioration, due to erosion, corrosion and/or foreign object damage, can be experienced.

To protect against performance loss and hardware deterioration, industrial gas turbines are normally equipped with air inlet filtration systems. However, the effectiveness of the filtration system depends on how well it is matched to the contaminants and site conditions. Matching the filtration system to the contaminants and site conditions is usually a judgement decision based on experience and available information. This paper was written in an effort to enhance the equipment selection process by reviewing BBC’s experience with air inlet filtration systems.

Copyright © 1984 by ASME
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