Cooling Tower Calculator
Design evaporative cooling systems with approach, range, and effectiveness
Input Parameters
Water entering from condenser/process
Desired outlet temperature
Ambient wet bulb (cooling limit)
Volumetric air flow through tower
Quick Reference
- • Range = Hot temp - Cold temp
- • Approach = Cold temp - Wet bulb
- • Typical approach: 2-5°C
- • Typical L/G ratio: 0.75-1.5
Performance Results
Range
10.0°C
Approach
5.0°C
Effectiveness
66.7%
Heat Transfer
Heat Load:1162.8 kW
L/G Ratio:694.44
NTU:0.69
Water Losses
Evaporation Loss:1.00 m³/h (1.00%)
Blowdown:0.33 m³/h
Drift Loss:0.02 m³/h
Total Makeup:1.35 m³/h (1.35%)
Mass Flow Rates
Water (Liquid):100000 kg/h
Air (Gas):144 kg/h
Design Recommendations
- ⚠ High L/G - may need larger air flow
Learn More
Understand cooling tower principles, Merkel theory, approach and range calculations, and tower types.
View Theory & Examples