What is the purpose of oil mist detector?

Oil Mist Detectors protect large diesel, gas and dual fuel engines of all applications. They protect against heavy consequential damage due to oil mist explosions, a result of overheating of bearings or moving parts.

What is oil mist detector in marine engine?

1. Oil Mist Detector. The Oil mist detector takes continuous samples from the main engine crankcase and check whether the sample concentrations of mist are well below the level at which a crankcase explosion can take place.

What is the purpose of auxiliary engine?

The auxiliary engines are used for electrical power production on board and can represent up to 15\% of the total fuel consumption for a vessel with diesel mechanical.

How do you prevent a crankcase explosion on a ship?

Preventive measure of crankcase explosion

1. There should be adequate cooling of the engine.
2. Proper purification and analysis of lube oil.
3. Lube oil filter to be changed over & cleaned as per schedule.
4. Ensure proper cylinder lubrication by checking the condition of piston, piston rings and liner through scavenge ports.

Is oil mist bad?

Oil mist from emulsions and oil smoke are equally unhealthy. Emulsions can pass into a worker’s nose and windpipe and can be inhaled or swallowed, while oil smoke can reach into the lungs. Exposure to oil mists can cause eye, nose, and throat irritation.

In which engine mist lubrication system is used?

Which type of lubrication system is used in two-stroke engine? Explanation: The mist lubrication system is used where crankcase lubrication is not suitable. In a two-stroke engine, as the charge is compressed in the crankcase, it is not possible to have the lubricating oil in the sump.

How auxiliary engine is started in ship?

Auxiliary Engine Starting System In air motor starting system, the engine is started by a starting air motor which is operated by compressed air. Figure below shows the compressed air system for starting, stopping and fuel limiting for auxiliary engines on ships.

What is auxiliary system in ship?

marine. A term applied collectively to all machinery and apparatus forming the nonpropulsive equipment of a ship. – Deck auxiliaries, deck equipment, deck machinery – All machinery used for working the vessel and handling the cargo: winches, windlass, steering gear, cranes, etc.

Is oil stored in the crankcase?

A crankcase is the housing for the crankshaft in a reciprocating internal combustion engine. In most modern engines, the crankcase is integrated into the engine block. Four-stroke engines typically have an oil sump at the bottom of the crankcase and the majority of the engine’s oil is held within the crankcase.

How does oil mist form in crankcase?

When the oil comes in contact with the hot spot, these oil particles vaporize and smaller particles are formed. These particles move towards the colder region inside the crankcase space and when in contact with the cold region, form a white mist.

Is oil spray healthier than oil?

Yes? Using cooking spray as a replacement for oil and butter can help cut back the calories. Since butter and oil have 100 to 120 calories per tablespoon (respectively), switching to a spray can mean fewer calories (and grams of fat) in your cooking.