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11 October 2018

55.Gases present in ballast tank

October 11, 2018 Posted by AK No comments
Atmosphere in Duct Keel becomes deficient in O₂, due to corrosion resulting from SW leakage.

O₂ may also be depleted by presence in SW of H₂S, which tends to oxidise.

H₂S is produced by bacteria in SW.

Carbon dioxide is given off by SW due to chemical changes. It does not support life.

Explosive gases formed, composed of Carbon and Hydrogen in varying proportion and may be in the form of Methane (CH₄), or Ethylene, due to evaporation of fuel leakage from fuel pipes and valves.

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