TP95-13: NPF Cooling Tower Fill: Its Development & Demonstration Legionnaires' Disease

TP95-13: NPF Cooling Tower Fill: Its Development & Demonstration Legionnaires' DiseaseThe use of plastic packings in natural draught cooling towers significantly improves their performance. A reduction in the recool temperature of the water sent back to the condenser of 2 to 3K can be achieved compared to typical wooden splash packings. However, an unfortunate side effect is that plastic packings suffer from the build up of surface fouling in service. This has been found to have the effect of reducing the performance of the packing.

This unique chemical approach provides multimetal corrosion control

It will show its advantages and its limitations

Chromium concentra­tions in plant materials (fescue grass) decreased with increasing distance from the cooling tower

the corrosion of the underlying steel can become concentrated under the white rust bumps

the company has to carry out major renovations of the fills located in the cooling towers

Examples are discussed

wind direction

development

The area around Pristine is very rich in lignite reserves

The results confirm the practical value of aerodynamic design in both retrofit and new-build scenarios

flow accelerated corrosion (FAC) and limiting the high parasitic power losses associated with Air Cooled Condensers

notes that the surface finish can affect corrosion measurements and provides a list of common finishes: sand blasted