FORCED CIRCULATIONFOOD CONCENTRATION SYSTEMS

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Feed, concentrate and evaporated water

Use a simple mass balance to establish a shared duty before comparing equipment.

CONSERVATION OF NON-VOLATILE SOLIDS

Example: 2,000 kg/h feed at 20% w/w to 50% w/w produces a calculated 800 kg/h concentrate and removes 1,200 kg/h water.

Steady state, conserved non-volatile solids, no additions, losses, reaction or accumulation. Use measured mass solids; do not enter Brix or L/h without a validated conversion. This balance is not thermal sizing, circulation flow or an equipment rating.

State the mass basis

Conserved solids flow is feed mass flow multiplied by inlet mass fraction. Divide that solids rate by the outlet mass fraction to obtain concentrate flow. The difference between feed and concentrate is calculated water removal.

Losses, volatile components, entrainment, crystal withdrawal, added ingredients or accumulation need a more complete balance. These results do not determine circulation flow, heater area or suitability.

Discuss the calculated duty