12-11: Structural Integrity of Hyperbolic Cooling Tower with Imperfections in Sidestream Softening

12-11: Structural Integrity of Hyperbolic Cooling Tower with Imperfections in Sidestream SofteningDue to the large sizes of the concrete hyperbolic cooling towers and the difficulties encountered during construction, it is not always possible to maintain the dimensional accuracy of the towers. Imperfections in the intended geometry and verticality do occur which can have an impact on the stresses in the thin concrete shell structure. Using an existing hyperbolic cooling tower as an example and some possible imperfection scenarios of the structure,

Two towers were replaced with new fiberglass towers

up to this point in time

high pumping costs and environmental regulations are driving cooling water systems towards higher cycles

This paper addresses these questions provides cost justifications

will also be presented

who had solved a problem similar to ours

performance data from field trials will be presented that compares efficacy and cooling system operation during treatment with Aseptrol biocide to baseline data collected during treatment with other biocides

Results show that the sensitive paper technique is still the most reliable method

As you all are well aware by this time

a product only recently introduced to the cooling water marketplace

Every cooling system operates under stress

scaling and biological fouling in a side-by-side comparison to standard chemical treatment