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CAT NO: DIDACTICHeat Equipments0023
SINGLE EFFECT EVAPORATOR.
SINGLE EFFECT EVAPORATOR
Evaporation deals with the concentration of a non-volatile solute
from a solution by the removal (If requited amount of volatile solvent.
Usually the solvent is water
By vaporizing part of the solvent, useful
product. i.e. the concentrated solution or thick liquor is produced and
the vapour is discarded. Long tube evaporators are usually used for the
concentration of foamy liquids. The set-up consists of stainless steel
tubes surrounded by a stainless steel jacket and fitted with
accumulator. Dilute solution is feed to tubes. Steam from a steam
generator is supplied to shell to concentrate the dilute feed solution
to a desired level. The jacket is fitted with a steam trap and the
condensate is collected at the end of trap. The vapours of volatile
solvent are condensed in a shell & tube type condenser and the
balance nonvolatile solute collected in the accumulator is recycled
through the evaporator.
Experiments
To concentrate a solution and to evaluate the following at steady state:
Material and Heat Balance
Economy and the capacity of the evaporator
Overall heat transfer co-efficient.
Utilities Required
Water supply 5 lit/min (approx.) and Drain
Electricity Supply: I Phase, 220 V AC, 4 kW.
Required Chemicals.
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