Beyond Improvement or Hot Air? Comparison of High-Speed Single-Stage Blowers to Conventional Technologies

Authors: Rohrbacher, Joe; Farina, Anthony; Gellner, Jamie; Cramer, Jim

Source: Proceedings of the Water Environment Federation, WEFTEC 2010: Session 91 through Session 100 , pp. 6868-6882(15)

Publisher: Water Environment Federation

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High-speed single-stage direct drive centrifugal blowers are relatively new to the North American market, with the first units installed in 2004. The installation base of this technology has expanded considerably over the past two years, and there are now more than 100 units in operation in the United States. High-speed single-stage blowers can provide substantial energy savings compared to multistage centrifugal and positive displacement blowers in many wastewater aeration applications and have similar efficiencies to single-stage integrally-geared blowers. This new blower technology, along with efficient fine bubble diffused aeration equipment and reliable aeration control, can help treatment plants achieve their energy optimization goals. The major drawback of high-speed single-stage blowers is their limited operational history in comparison to other blower technologies, particularly in North America. Long term operational history for high-speed blowers is lacking, and questions as to expected equipment life and maintenance requirements still remain unanswered.

Keywords: Aeration; blowers; energy savings

Document Type: Research Article


Publication date: January 1, 2010

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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