NDLI: Development of High-Speed Industrial Turbo Blowers With Foil Air Bearings

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Oh, Jongsik Lee, Heonseok
Copyright Year	2003
Abstract	In the paper, the development of high-speed industrial turbo blowers with foil air bearings is presented as a first successful commercialization in the world. Their target market is various from wastewater treatment to cement factory processes which require compressed air ranging between 0.6 and 0.8 bar gauge. Employing the state-of-the-art technology of the high-speed BLDC motors, the bump-type foil air bearings and the high-efficient turbo impellers/diffusers, so much compact, efficient and silent blower machines of a single stage are now available in the market, aiming to replace the existing inefficient, bulky and noisy ones, such as roots blowers. The first production lines are established for 75 and 150 hp class blowers. Rotational speeds up to 40,000 rpm are realized directly from the high-speed BLDC motors without any gear boxes, and no lubrication oil is required. A brief introduction of design, manufacture and test results is presented for mechanical, electrical and aerodynamic performance.
Sponsorship	International Gas Turbine Institute
Starting Page	735
Ending Page	740
Page Count	6
File Format	PDF
ISBN	079183686X
DOI	10.1115/GT2003-38606
e-ISBN	0791836711
Volume Number	Volume 3: Turbo Expo 2003
Conference Proceedings	ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference
Language	English
Publisher Date	2003-06-16
Publisher Place	Atlanta, Georgia, USA
Access Restriction	Subscribed
Subject Keyword	Cements (adhesives) Motors Air bearings Gages Machinery Wastewater treatment Design Gears Compressed air Impellers Turbochargers Diffusers Lubrication Assembly lines
Content Type	Text
Resource Type	Article

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