87-12: Anomalies in Fan Efficiency CalculationsFan total efficiencies as calculated by the CTI Field Test Handbook (Chapter 5. 5) can, in certain situations, exceed 100%. This has caused confusion among specifiers and users. Therefore, efficiencies calculated from experimental data are sometimes adjusted downward to maintain credibility. The net result is that fan motor horsepower, as specified, are sometimes higher than actually needed. The reason for this anomaly is the incorrect assumption that

A newly developed alkaline phosphate program operates in the same pH region as current alkaline zinc technologies

it was determined that we should remove and replace this fill

There is currently no published test code that governs the performance testing of large wet cooling tower fans

with the remaining principal research objective being a cost effective optimum performance level

and recommended testing procedures employed to determine the defined values

fire resistance

The plant chemical processes are cooled by 3 mechanical draft-cooling towers with a combined recirculation rate of 267

(b) Design Issues

A substantial portion of the annual cooling water treatment costs at Enron Power Corporation in Texas City

The introduction of high efficiency film fill has significantly increased cooling tower performance

This paper describes the consistency and accuracy of using a diamond shaped averaging pitot tube technology for acceptance testing in water flow measurement

it has increase in significance since the changes in water treatment procedures brought about by the EPA's banning of the use of chromate