Water Measurement Tests (Nitrite, Alkalinity) in cargo ship engine rooms
In the engine room of a cargo ship, one of the most critical systems is the air compressor.
From my experience as a marine engineer, I have seen that without compressed air, the ship cannot start its main engine.
The air compressor supplies high-pressure air stored in air receivers, typically around 25–30 bar.
Starting air system
The most important use of compressed air is for starting the main engine.
Before every start, I always check:
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air pressure
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receiver condition
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starting valves
Without sufficient pressure, the engine simply will not turn.
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How marine air compressors work
Marine compressors are usually multi-stage machines.
Air is compressed in stages, cooled between stages and then stored.
Proper cooling is essential to avoid overheating and damage.
Daily operation
During my watchkeeping, I monitor:
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temperature
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pressure
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oil level
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automatic operation
Although compressors are automatic, I always perform manual checks.
Maintenance
Routine maintenance includes:
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oil changes
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filter cleaning
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valve inspection
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piston inspection
I have participated many times in compressor overhauls, which require careful work.
Common issues
Typical problems include:
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overheating
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air leaks
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valve wear
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moisture in the system
Importance on board
From my experience at sea, a properly functioning air compressor is essential for:
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starting engines
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operating systems
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ensuring ship safety
Without it, the ship cannot operate.
📌 The video is aimed at:
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Merchant Marine engineers
Friends of shipping
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