93-03: Reduction of Noise Generation by Cooling FansBased on an intensive research program, it has turned out that it is possible to reduce the sound power level of cooling fans with 3 to 8 dBA by the extreme application of more or less known effective principles like wider blade cord and swept leading edge line. Following international recognized measuring standards; the measuring results will be presented as well as consequences for cooling tower design and cooling fan construction.

Throughout the world

are beyond the scope of the standard

recovery and analysis so as to obtain accurate and repeatable results

It covers the maintenance rules and check list to avoid uncontrolled freezing

It is usually recognized that a Cooling Tower System needs water treatments and a maintenance program to prevent the transmission of Legionnaires Disease

Paper includes calculation procedures

The precipitation and fouling problems previously encountered with zinc containing treatments have been eliminated by the use of polymeric dispersants

Spray cooling systems have been employed at multiple power plant sites

A novel evaporative process has been developed for reclaiming waste industrial water efficiently

creating a strong reference and a solid structural basis for the introduction of the solution in the market

the complexity and variation of water chemistry

Add to all of this the ability to maintain full production during the summer heat and one can see how a temporary system will solve plant worries and increase profits