Film vs Flooded Evaporator Configuration Calculator
Evaluates the hydraulic and thermal performance of a vertical falling film evaporator for food applications, determining film thickness, residence time, and overall heat transfer coefficient.
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1. Define Input Parameters
2. Engineering Output
Thermal duty (Q)
- W
- W
Total wetted perimeter (W_perimeter)
- m
- m
Film load (Gamma)
- kg/(m·s)
- kg/(m·s)
Film Reynolds number (Re_delta)
-
-
Nusselt film thickness (delta)
- m
- m
Average film velocity (v_avg)
- m/s
- m/s
Residence time (tau)
- s
- s
Film Nusselt number (Nu_delta)
-
-
Film heat transfer coefficient (h_f)
- W/(m²·K)
- W/(m²·K)
Overall heat transfer coefficient (U_real)
- W/(m²·K)
- W/(m²·K)
Need this calculation offline?
Download Offline Excel CalculationContext & Assumptions
In food and beverage process engineering, selecting the correct evaporator configuration is critical to maintaining product quality. Falling film evaporators are ideal for heat-sensitive liquids like juices and milk due to low residence times and high heat transfer coefficients. This calculator evaluates the hydraulic and thermal performance of a vertical falling film evaporator to prevent thermal degradation and fouling.
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The results provided by this tool are for educational and preliminary estimation purposes only.
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