technical NOTES

(Project Pridr) #1
Two design of ACC in available in market:


  • Multi row system with circular tubes

  • Single row design with elliptical tubes

  • Advantages of single row over multi row ACC

  • Lower fan power consumption 5%-6%.

  • The tube shape and fin characteristics result in reduced pressure drop on the air
    side, leading to less power consumption by the fan motors.

  • Increased thermal efficiency. Increased heat ex-changer efficiency means fewer
    modules are needed for a given duty. Maintenance cost will be lower.

  • Single row tubes do not burst when frozen, round tubes burst, causing damage

  • Easy to identify a leaking tube with single-row ACC’s


Conclusion:


Single Row ACC is better than Multi row ACC in respect of auxiliary power
consumption and performance.

Free download pdf