Seamanship Subject

Last wednesday in our Seamanship subject, Capt. Nikulus Gines taught us the 2 different rule of ventilation inside the cargo hold. Cargo hold is the space in a vessel where the cargo is stored.

There are various things to be consider in transporting cargoes from one place to another. First, when the vessel is navigating either cold place to warm place or warm place to cold place. We should ventilate the cargo hold so that the cargo or the vessel will not sweat.

The first rule in ventilating the cargo hold is the three degree rule. This means that if the dry temperature outside the cargo hold is lower than the dry temperature inside the cargo hold, we should ventilate; and if the dry temperature outside of the cargo hold is higher than the dry temperature inside the cargo hold, we should not ventilate.

The second rule in ventilating the cargo hold is the dew point rule. Dew point is the temperature where condensation occurs. Dew point rule state that if the dew point temperature outside the cargo hold is lower than the dew point temperature inside the cargo hold, we should ventilate; and if the dew point temperature outside the cargo hold is higher than the dew point temperature inside the cargo hold, we should not ventilate.