20-07: Numerical Calculation on Heat Exchanger Tube Thermal Fatigue Life in ColA series of numerical analyses are conducted with the assistance of coupled computational fluid dynamics (CFD) and structural analysis to estimate the air cooled steam condensing heat exchanger tube life expectancy in extremely cold ambient conditions. The temperature profile of a heat exchanger tube from CFD is used as boundary conditions for stress strain analysis. The effect of ambient air temperature, air velocity, steam pressure, steam velocity,

Recent environmental concerns have been expressed regarding the possible toxicity effect to aquatic life from copper in once-through cooling water discharge and the blowdown from recirculating cooling systems

due to poor water distribution

oil refineries and chemical plants

Results of the all-organic program

Nalco was awarded DOE grant to develop a cost-effective integrated solution (chemical and physical) for the use of impaired water and maximize the cycles of concentration

Three pultruders who supply the Cooling Tower Industry with structural shapes submitted samples for a water immersion analysis that has been underway with periodic testing for over one year

and disturbed flow profiles

increased fluid frictional resistance

In any case

The additional requirements that current applications may require

Although they provide superior performance

to provide this 11Take It For Granted" environment