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Why we create a vacuum in the low pressure fresh water generator ?

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Question ajoutée par SALIM BEN HARIZ , MAINTENANCE SUPERVISOR , DIETSMANN
Date de publication: 2015/03/03
SALIM BEN HARIZ
par SALIM BEN HARIZ , MAINTENANCE SUPERVISOR , DIETSMANN

The vacuum is created in the LP fresh water generator to reduce the evaporation temperature of the water.

At1 atm , T=100 C

At0.2 atm , T=60 C

So we don't need heaters for the evaporation of the water, that' why the diesel engine cooling water outlet (85 C) is used as the heating agent in the generator.

sachin abraham
par sachin abraham , Fourth Engineer , Reederei Nord Ltd

by using an air ejector(venturi effect)

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