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05-01: Optimization of Water Cooled Chiller - Cooling Tower CombinationsWater cooled chiller systems have typically been designed around entering condenser water temperatures of 85F with nominal condenser water flow of 3 GPM ton and a 10F range. In recent years there has been considerable debate on the merits of designing around lower nominal condenser water flow rates with a higher range in order to improve system lifecycle costs. However, two other parameters must also be considered in any analysis approach and design

The development of accurate and representative cooling tower performance penalties is critical to the optimization of cooling systems design and the assessment of associated performance penalties

The horsepower and speed required for a given fan depends on many factors

Cooling Tower 4 experienced a catastrophic failure of the #8 fan

imputed from a makeup water flow meter

Money is just as surely a corrosion engineer's tool as is a test coupon or a pH meter

Also outlined is how improvement to the magnesium oxide feed system for a raw water clarifier significantly improved silica removal from the cooling tower makeup

Resulting restrictions in freshwater availability for evaporative cooling use may lead to potential production constraints

Multiple safety features have been incorporated into the feeder to significantly minimize the risk of exposure to chlorine dioxide

A summary of these events will be discussed in this paper along with the probable reasons and actions AEP is taking to prevent a reoccurrence

This paper describes the theory

In the early 1960's

represents an undue burden to the customer and may be technically unjustifiable

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