08-14: Fan Stall Problems; Cause or Effect Use of Biocides

08-14: Fan Stall Problems; Cause or Effect Use of BiocidesThe occurance of fan stall appears to be a common factor in an increasing number of cooling tower thermal performance problems. Frequently such problems arise following well intentioned but ill advised retrofits. Because fan stall is not readily detected, it is often overlooked as a possible sole cause or contributor to performance problems, or as a symptom of other physical or mechanical problems. The mechanism and characteristics of fan stall and

some towers suffered from important fouling issues and we had to clean

excessive amounts of cooling water loss requiring "make-up water" has become a larger issue

The cooling water treatment program is designed to control CaCO3 scaling at Langelier Saturation Index values approaching +3

In a typical cooling loop

Copper alloy condenser tube is most frequently employed due to many desirable properties including corrosion resistance

Interesting enough

and other small components for use in standard properties

and other heavy industries use large volumes of cooling and demineralized water and at times reclaim water is a source of water

and the user satisfaction level

In particular power consumption which in some cases may be as low as 15%

Trial data showing MB counts

such as the various restrictions due to water air pollution control and how we are trying to live with these