Process evaporator solids balance calculator

Calculate concentrate flow and evaporated solvent flow with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use concentrate flow and evaporated solvent flow to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Feed mass flow (kg/hour)
1000
Feed solids mass fraction
0.1
Target concentrate solids mass fraction
0.4
Concentrate flow (kg/hour)
250
Evaporated solvent flow (kg/hour)
750

Try another scenario

Feed mass flow (kg/hour)
1100
Feed solids mass fraction
0.1
Target concentrate solids mass fraction
0.4
Concentrate flow (kg/hour)
275
Evaporated solvent flow (kg/hour)
825
Calculation method

Calculation method

Concentrate flow (kg/hour)

Feed×feed solids/target solids; solids conserved.

Evaporated solvent flow (kg/hour)

Feed−concentrate; no entrainment or volatile-solids model.

Symbols and units
a
Feed mass flow (kg/hour)
b
Feed solids mass fraction
c
Target concentrate solids mass fraction

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Feed flow-solids, target solids. Returns Concentrate and vapour quantities. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Feed mass flow (kg/hour): minimum 1e-12, maximum 1000000000000.0. Feed solids mass fraction: minimum 1e-12, maximum 1. Target concentrate solids mass fraction: minimum 1e-12, maximum 1.
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