![]() Quite a number of commercial ships depend upon this method. It all boils down to the juggling of maintenance costs and running costs. Both methods have their advantages and disadvantages. The basic reason behind creating this plan is to make sure someone of higher authority is overseeing the process and seeing to it that there is no overfilling happening and that the temperature is not going above say 50-degree Celsius.īunkering operations can be carried out at sea or a port. The bunker plan made by the chief is discussed, and in some scenarios, a copy of it is also sent to the owner for approval before initiating the bunkering process. The plan makes sure that the mixing up of oil is avoided as much as possible to maintain the draft and proper trim of the ship. This conference is less of a formal thing, and more of a discussion regarding the issues involved, the duty that each needs to perform, precaution against overflow, and if by chance there is a case of a spill, how that is to be handled is also discussed in this meeting.Ī bunker plan is chalked out with the help of the chief engineer. Various other things are also decided upon in an interactive session that involves the ship’s crew. The amount of oil that is to be taken is decided after consulting the master. But in case of longer trips over the Pacific and the Atlantic there needs to be enough oil for five days as in these cases it is not usually possible to get oil en route. Usually, the tank is filled with enough oil to last for 3 days. How much oil is to be taken is decided based on the duration of the trip. Bunker C – The most commonly used bunker.Bunker B – Low-viscosity vac resid range bunker fuel.Bunker A – Gas oil range bunker fuel also called marine diesel or marine gas oil.Generally, residual fuel oil is used which is the lowest grade petroleum product from a refinery. Liquefied natural gas (LNG) Grades of Bunker Fuel.Types of Bunker Fuelĭifferent types of Bunker fuel are used depending on the vessel types. Special procedures need to be adopted regarding heat management and transportation. But they are heavy, thick, and consequently storing them becomes a challenge. Since it is cheap, it lowers the expenditure for companies dealing with commercial shipping.īunker fuel in itself might be cheap. It is used by big land-based plants as well as large ships for their propulsion and auxiliary engines. Naturally, it is much cheaper than the latter. Hence, bunkering oil means fuel oil used for ships.īunker fuel is the residual portion that remains from the process of crude oil refinement. As the industry changed from coal to oil for propulsion, the name remained and became synonymous with the fuel for ships. The coal was stored in a container known as the bunker. The term has its roots back in the days when the primary source of power for the ships was coal. What Is Bunker Fuel?īunker fuel also known as the bunker is any fuel used for powering a ship. Bunkering is the process of receiving oil in the ship’s tank and making sure that there is no overflow during the process. One of the most critical operations on the ship is fuel oil bunkering.
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