Evaporator Design Calculator
Design single and multiple effect evaporator systems with steam economy
Input Parameters
Steam temperature: 131.8°C
Typical: 1000-2000 for food, 1500-2500 for chemical
Higher for concentrated solutions
Material Balance
Product flow:2000 kg/h
Water evaporated:8000 kg/h
Concentration factor:5.00x
Steam Consumption
3-Effect System
3333
kg/h steam
Steam Economy
2.40
kg water/kg steam
Single Effect Comparison
Steam consumption:8000 kg/h
Economy:1.00
Steam savings:58.3%
Heat Transfer Area
Total Area (all effects)
47.1 m²
Per effect: 15.7 m²
Performance Details
Heat duty:7279 MJ/h
ΔT per effect:28.6°C
Evaporation per effect:2667 kg/h
Temperature Profile
Steam (Effect 1)131.8°C
Effect 1 vapor101.2°C
Effect 2 vapor70.6°C
Effect 3 vapor40.0°C
Design Recommendations
- ✓Significant steam savings vs single effect (58%)
- ℹConsider backward feed for highly viscous products
Learn More
Understand the principles of single and multiple effect evaporation, steam economy, boiling point elevation, and feed flow arrangements.
View Theory & Examples