Class 2 (2nd Engineer) MEKG 📅 Sep 2019

Exam Question

With reference to Flue gas Inert gas system:

(a) Sketch and describe using a line diagram showing a typical 'Inert Gas System' used for inerting the cargo tanks of oil tankers, labeling the component parts.

(b) State what oxygen content you would expect in the flue gases if good combustion is achieved.

Reference Answer

(a)
The following components are used in a typical inert gas system in oil tankers:
Exhaust gases source: The inert gas source is taken from exhaust uptakes of the boiler as it contains flue gases in it.
Inert gas isolating valve: It serves as the supply valve from uptake to the rest of the system, isolating both systems when not in use.

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