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Optimization of cooling towers

June 23, 2020

The load on a cooling tower depends on the flow and temperature of the water returning from the process. The controlled variable is the temperature of the cooling water that is sent back to the process and the manipulated variable is the air flow through the tower, which can be changed either by adjusting the speed of variable-speed fans or by starting and stopping a number of constant-speed fans.

Cooling tower safety vs optimization: The operational and safety aspects of cooling towers

June 23, 2020

Their cost of operation is the sum of the water and air transportation costs, and therefore, if these costs are minimized (optimized), the operating cost of the plant can be reduced a fair amount. (In an IBM job, we reduced the plant operating cost by 17% through optimization.)