technical NOTES

What are the ways to improve ACC Performance?

• Optimization of air flow system (higher efficiency)


• Installation of wind screens to counter negative effects of cross winds on ACC’s


• Installation of fogging system (adiabatic cooling)


• Elimination of hot air recirculation


• Leak detection of vacuum system


• Better and more efficient cleaning methods for finned tube bundles
  Advantage of Dry Cooling System
  System Wet Cooling System Dry Cooling System
  Major Equipment s Cooling Tower and surface
  condenser

Air Cooled Condenser

Availability of coolant Water at a cost or is it avail-
able?

Air Is free

Plant Location Should be near water and
fuel source

Water source is not
criteria
Maintenance cost High 25% of that for wet
cooling system
Effluent treatment Necessary Not Necessary

Fouling and Scaling Major concern Not a concern

Cleaning Frequent tube side cleaning
is necessary

Occasionally fin clean-
ing is required
Total Plat set up Involves intake water, pump-
ing system and storage
facility

No such infrastruc-

tures required

Space for complete system Same Same

Annual Energy consumption High Low