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09-18: Recent Development in Motor Technology Allow Direct Drive of Low SpeedImproved reliability of cooling tower systems is now possible due to a new development in motor technology. This paper will discuss the development of low speed, permanent magnet motors and how they can be used in direct drive applications to eliminate the gearbox, NEMA motor, driveshaft, and disc couplings from cooling tower designs. A case study will be presented where an existing tower was refurbished using a direct drive motor which fit the exact

A challenge in successful operation of cooling towers today with VFD's revolves more around proper application than technological limitations in the equipment

Water is vital to industry in processing raw materials

Onsite generated MOS is safe

a hazardous bacteria

in the rental market a single cooling tower will be utilized in various applications

bromide-activated planktonic bacteria

The phenomenon of cooling tower fill fouling was studied by examining the relationship of microorganisms

has since then continuously studied blades' mechanics

This non-conventional design tower would serve as the ultimate heat sink for the reactor plant following a postulated design basis accident

means of controlling fan power can offer large energy savings for cooling tower owners/operators

Argon National Laboratories under CRADA demonstrated the use of ED/RWEDI while Nalco developed scale inhibitors for the integrated solution

The Factory Mutual Engineering Association

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