05-04: Natural Frequency Characteristics of Drive Shafts Fills Tests using mixed-oxidant solution instead

Tests using mixed-oxidant solution instead of oxidizing biocides (chlorine or bromine) for cooling tower maintenance

The main target of these R&D efforts was and is the improvement of the evenness of water distribution in cooling towers and consequentially the overall cooling performance

These alternate tube designs were analyzed under a variety of flow conditions in controlled settings

This paper will review the normal design considerations encountered in designing custom built cooling tower systems with critical demands and will elaborate to include the special design considerations necessary for “Mission Critical Cooling Facilities

05-04: Natural Frequency Characteristics of Drive Shafts Fills Tests using mixed-oxidant solution insteadFor rotating machinery utilizing drive shafts, it is important to operate at a speed sufficiently lower than the drive shaft's natural frequency to prevent destructive vibration. In this paper, the theory of determining the shaft's natural frequency is presented as well as methods for empirically testing a shaft's natural frequency. Vibrations levels in the region of the natural frequency are empirically determined for composite drive shafts and