76-07: Emergency Shutdown Cooling Towers Considerations in the Evolution of Utility Industry

76-07: Emergency Shutdown Cooling Towers Considerations in the Evolution of Utility IndustryThis paper discusses the various regulatory requirements and criteria governing the design of emergency shutdown cooling towers for nuclear power plants. The effects of key tower parameters, e. g., wet bulb temperature, flow rates, and heat load on tower size and their interactions with system and safety requirements are explored. The evolution of the Seabrook Station tower and its relationship to a companion cooling water source (the Atlantic Ocean)

Modulus of elasticity and compression parallel to grain have been determined on small clear and full sized samples of Douglas Fir and Redwood after three year wet exposures at room temperature

and use of polarity reversal control cell fouling/scaling

minimizing the variation greatly reduces the potential for failures that result in unscheduled shutdowns or impaired operations

Some case histories are also discussed

the theory of determining the shaft's natural frequency is presented as well as methods for empirically testing a shaft's natural frequency

The advantageous features of the round type of hybrid cooling tower compared to the cell-type construction are less space required

October 2009

The paper will focus on the Gavin Plant on-line performance monitoring system approach with prior testing activities on AEP System cooling towers included from a historical perspective

Profiled FRP panels form an integral part of the cooling tower infrastructure

Patented chemistry utilizes functional groups that provide polymer stability in stressed cooling water systems while exhibiting calcium phosphate inhibition at low treatment levels

Flow measurement is the single most critical parameter in cooling tower testing

Address the connection between the scientific hypotheses and field results found in the food industries