Skip to main content

Flooding in engineroom

Engine room flooding as the name indicates, means filling up of the engine room space with water. Engine room flooding can affect the watertight integrity of ship.
Action to be taken During Flooding

  • Call for maximum manpower to tackle the situation
  • The sooner you find the fault the better
  • Start the other circulating system and isolate the leaking pump, pipe, cooler etc.
  • Close inlet and outlet valves of the affected system to stop the leak
  • Inform chief engineer regarding the leak and follow the instructions from him
  • Put a notice or placard regarding leaking equipment or system and trip the breaker until repairs have been done
  • In case of any tank leakage, start transferring the excess content from that tank to any other tank and try to minimize it as much as possible
  • Tank should not be used until cement box or welding has taken place or repairs have been done
2) In case of leakage from Overboard Valve
  • If the leakage is after the valve and if the valve is holding, shut the valve if the system involved for that valve permits normal operation of the ship with the valve closed
  • If the valve is not holding then identify the leak. It may be from the valve stem gland or flange joint; try to repair the leak
  • If system for that valve can be isolated without disturbing the normal operation of the ship, put a blank in the valve
  • If the repair is temporary then when ship reaches the port, call clivers to blank the valve opening from outside and carry out permanent repair
3) Flooding due to crack in the hull or small hole
  • In this case, as soon as you find the leak, call for help from nearest coastal state because if the leakage is more, the ship's stability will be affected
  • By all means, the leakage has to be minimized and finally stopped
  • If the leak is not big enough, then cement box is to be put in place of the leak and repairs are to be done accordingly
  • In case of leakage due to damage from any accident like collision or grounding, there is nothing much that can be done as the opening in the bulkhead is large and there is no chance of stopping the leak. In such cases, the captain has to decide whether the ship is a safe place to stay or not and decision for abandoning the ship has to be made
  • In case of abandon ship signal announcement, the crew should muster to respective lifeboat and abandon ship operation should be carried out
  • For any of the above reasons, if the water level ingress in the engine room is very high, open the emergency bilge ejector valve with consent of the chief engineer and pump out the water overboard. Entry of the same is to be made in Oil record book (ORB) with date, time, and position of the ship and reason of direct discharge with signature of officer involved in operation, chief engineer, and master

Comments

Popular posts from this blog

Main engine interlocks

Interlocks are provided so that the engine can be started or reversed only when certain conditions have been fulfilled. When there is a remote control of engines, it is essential to have interlocks. This reduces the possibility of engine damage and any hazards to the operating personnel. Turning gear Interlock . This device prevents the engine from being started if the Turning gear is engaged. Running Direction Interlock . This prevents the fuel from being supplied if the running direction of the engine does not match the Telegraph. Starting Air Distributor in end position . This prevents starting from taking place if the shifting of the Distributor has not been completed. Main Lube. oil pressure, Piston cooling pressure, Jacket water pressure, and important parameters must be above the required minimum. Auxiliary Blower Interlock . The Auxiliary Blower is provided in case of Constant pressure turbo charging. Air Spring pressure Interlock . In case of the present generation...

Differences between MC/MC-C and ME/ME-C engines

The electrohydraulic control mechanisms of the ME engine replace the following components of the conventional MC engine: Chain drive for camshaft Camshaft with fuel cams, exhaust cams and indicator cams Fuel pump actuating gear, including roller guides and reversing mechanism Conventional fuel pressure booster and VIT system Exhaust valve actuating gear and roller guides Engine driven starting air distributor Electronic governor with actuator Regulating shaft Engine side control console Mechanical cylinder lubricators. The Engine Control System of the ME engine comprises: Control units Hydraulic power supply unit Hydraulic cylinder units, including: Electronically controlled fuel injection, and Electronically controlled exhaust valve activation Electronically controlled starting air valves Electronically controlled auxiliary blowers Integrated electronic governor functions Tacho system Electronically controlled Alpha lubricators

Manganese bronze is not typically used as a propeller material .Why

1. High cost: Manganese bronze is a costly alloy, making it less economical for large propellers. 2. Low strength-to-weight ratio: Compared to other propeller materials like nickel-aluminum bronze or stainless steel, manganese bronze has a lower strength-to-weight ratio. 3. Susceptible to corrosion: Manganese bronze can corrode in seawater, especially when exposed to high velocities and turbulence. 4. Poor cavitation resistance: Manganese bronze is more prone to cavitation damage than other materials. 5. Difficult to cast and machine: Manganese bronze is challenging to cast and machine, making it less desirable for complex propeller geometries. 6. Limited weldability: Manganese bronze has poor weldability, making repairs and modifications difficult. Nickel-aluminum bronze or stainless steel are commonly used for propellers due to their: - High strength and durability - Excellent corrosion resistance - Good cavitation resistance - Ease of casting and machining - Weldability