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Cooling Towers and Energy Efficiency
SPX Cooling Technologies, Inc., has outfitted an 18-foot mobile trailer with displays of field-erected cooling tower components. Visitors to the trailer can see the quality and design of Marley components compared with other OEM versions in side-by-side hands-on displays.
The mobile trailer features several Marley innovations, including the new M Series Geareducer®, Comp-DS Driveshaft, HP 7000 Fan, and a range of heat transfer fill types. The new M Series Geareducer features gears of high strength, case-hardened alloy steel machined to AGMA Quality Class 9 and above. Designed to fit into non-Marley cooling towers for easy replacement, the M Series has heavy-duty double row bearings for 100,000 hours of life or more. To further extend service life, its finned exterior and large oil passageways help maintain lower oil temperatures. The new Geareducer operates without the need for oil pumps, filters or coolers.
The Comp-DS Driveshaft offers a high-performance, lightweight and low-maintenance alternative to steel driveshafts. Marley’s patented, unitized, carbon-fiber flexible elements with slip-fit, stainless steel hubs are easy to install and align. They are designed for fans up to 36 feet in diameter and for motors up to 300 horsepower. All materials are specially selected for cooling tower duty and constructed to provide maximum protection against corrosion and UV damage.
The Marley HP 7000 cooling tower fan features a unique flared-tip design that creates a performance advantage by aiding air movement next to the fan cylinder wall. The airfoil is optimized to move more air with less effort than fans equipped with straight-blade tips. Also offering reduced drag loss, the HP 7000 results in nine percent power reduction and lower noise operation.
The mobile trailer also showcases heat transfer fill media types suitable for a range of water qualities. Additionally, scaled-down cross-sections of Marley F400 counterflow and F600 crossflow towers illustrate design and component differences of each tower type.