bilge and sullage Flashcards
(10 cards)
- Why is it important to keep bilges empty?
So you can keep an eye on the machinery above them, as they collect any fluid that may be leaking or overflowing from machinery.
- What is the Bilge?
Located at the bottom of the ship this collects spillages, leakage, condensation etc that accumulates at the bottom of the hull
- What methods are available to empty the bilge?
- Open the discharge over board valve
- Open the motive water valve supplied from the HPSWM
- Open the bilge suction valves
- What is the bilge system?
A bilge system is fitted to remove excess fluid from machinery space bilges to separate water from oil and discharge oil to sullage tanks by means of an oily water separator, with the water being discharged over board.
- What is the Sullage System?
The sullage system is designed to retain dirty or waste oil/fuel until it can be properly discharged ashore. The discharge from the bilge system is directed to the tanks of the sullage system or overboard when it does not contain oil/fuel and complies with current MARPOL regulations.
- What are Eductors used for?
Eductors are used to remove quantities of fluid, generally oil/fuel/water, from the bilges very quickly. Excess liquid builds up in the bilges because of leaks, overflows and machinery discharges, and also because of scrubbing down and washing through.
- What principle does an Eductor use?
Bernoulis theorem
- What is the correct order to operate an Eductor?
Open the discharge overboard
Open the motive water supplied from the HPSWM
Open the bilge suction valves.
- What may happen if an Eductor is operated incorrectly?
If the eductor system is operated incorrectly/valves opened in the wrong order the compartment will flood with sea water from the HPSWM.
- Whose permission is needed to operate an Eductor?
MEO
