Technicals – Problem Caused in Cooling Tower

PROBLEM : Corrosion, Scaling, Fouling, Algae/Bacteria, Disease cause (Legionnaires) etc.

Corrosion : Dissolve Oxygen, Chloride, High TDS, SRB, Flow Rate, Low Temperature/ High Temperature.

Scaling : Hardness, Alkalinity, Temperature, High TDS, Sulphate (CaCo3, CaHCo3, MgCo3, MgHo3, Fe).

Fouling : TSS, Bacteria, TDS.

Algae : Bacteria, Excessive use of Phosphate base chemicals.

Type of Cooling Tower
Once through, Re-circulation, (Open Circuit, Close Circuit [Chillers])

1. Natural Draft / Draught
a) Atmospheric Ammonia Condenser
b) Shell type condenser (Cooling Tower)
c) Spray Pond

2. Induced Draft / Draught, Paharpur
3. Forced Draft / Draught

Water Analysis Report
Cooling Tower makeup water can be Raw, Soft, RO, Condensate etc.