89-15: Design, Operation and Water Treatment of a Wet Finned Tube Exchanger Materials

89-15: Design, Operation and Water Treatment of a Wet Finned Tube Exchanger MaterialsDue to high maintenances costs, the Southern California Gas Company replaced existing open cooling towers with "wet" Fin Fan coolers. The "wet" Fin Fan is similar to a standard Fin Fan, but enclosed with "walls" which act as an evaporative air precooler. The "walls" which act as an evaporative air precooler. The "walls" are made from fiberglass evaporative fill material, over which water is circulated. Three such towers were constructed between 1982

The need for a chromate/zinc replacement program

or ease of installation

Making sure the right dosage of the right chemistry at the right time avoids “overfeeding” for worst case situations

The wet-bulb temperature of the air entering the cooling tower determines operating temperature levels throughout a water-cooled plant

As a result of the research efforts and our partnerships with other companies

The advantages of products

a combination of equipment and controls

The historical comparison to chromate is not appropriate because of chromate's greater oxidizing ability

concrete peeling

thermal pollution problems can be minimized

and consequently

The precipitation is always proportional to the water's alkalinity