Guidelines to limit/avoid condensation/water damage to deep frozen paper rolls
22 November 2024
Ventilation should be limited to a minimum and preferably from exhaust fans only. It might also be an advantage to commence the limited ventilation as early as possible after loading in cold climate.
However, if stability and stress conditions permit, a change of ballast water (fill ballast water twice a day in the side tanks) and/or DB tanks, whichever is applicable) might help to limit condensation. Note: The seawater temperature will slowly increase the temperature of the cargo compartment and the cargo.
At warmer ports, ventilation of cargo compartments should be kept to a minimum, and to the compartments worked only.
Ventilation of cargo compartments during the voyage should be limited and monitored closely until the cargo is "warmed up" and condensation can be avoided.
REMEMBER...
Ventilation will remove moisture/condensation only if the supplied air (outside air) has a lower dew point (temperature) than the air around the cargo in the cargo compartment.