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Hi everybody, I am new to this forum and this is my first post.

Is it possible to calculate the increase in viscosity after the lube oil has become emulsified following an ingress of seawater?

The question is related to a slow speed marine diesel engine.
Original Post
I've not come across a way to calculate the increase in KV on the ingress of seawater. I can only suggest that a use of a hand held viscometer to check the increase in kV versus the amount of sea water ingress. Not sure if you can simulate in a lab by the additon of seawater at X% to see increase in KV.
Thanks Rene, it would appear that it is not possible to calculate a change in KV on ingress of seawater.

I understand that in some instances KV will increase and in other instances it might decrease due to the different carrying capacities of oils.

Unfortunately in this case, which is an arbitration following a main engine failure and salvage, a simulation will not help our cause.
Hi David

though this post may be very old - it is very much possible for a change in viscosity due to sea water ingress.
if water is emulsified, there could be an increase and if it is free water - then it would decrease.
can you share the incident with more details if possible?


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