Optimizing the performance of a fan assisted cooling tower can save significant amounts of energy consumption. For this purpose it is crucial to practically verify the intended fan duty point. In practice the determination of the operating point of a cooling fan is typically limited to the determination of the air volume flow rate through the fan or through the cooling tower as a whole. CTI publication PFM-134 “Recommended practice for air flow testing of cooling towers” provides detailed instructions on how to perform such an air volume flow rate test on a cooling tower.
14-15: Review and Comments in the CTI Publication PTG-143: Technical Issues
Peter Holkers, Howden