What is fuel change over procedure?
This procedure is started by shutting down the consumption from the high sulphur service tank with the 3-way valve and supplying fuel from the low sulphur service tank instead. During the change-over process, the fuel in the service system will continuously be diluted by the low sulphur fuel.
What will happen when the ships change over the engine fuel to a low sulfur content fuel?
Moreover, looking at today’s economic condition of the industry, it’s imperative to change over the fuel from high to low sulfur at the correct time as an early change over will lead to loss of low sulfur oil, which is quite expensive, whereas a delay in the changeover procedure will lead to violation of MARPOL annexe …
How do I change over fo?
- Reduce the load on the main engine to somewhere around 30 percent.
- Close the heating to fuel oil heaters and let the fuel temperature to approximately 100 degree Celsius.
- Keep the valve from the DO to the main fuel oil line open.
- Open the DO valve and Close the HFO.
Which of the following is a hazard of the fuel changeover procedure?
Interruptions in fuel supply during the changeover process can lead to reduced engine power or in the worst case scenario, total loss of propulsion, which could be hazardous for the vessel, its crew, passengers and cargo.
What is the difference between fuel oil and diesel oil when it will be used on the ship?
Unlike heavy fuel oil (HFO), marine diesel oil does not have to be heated during storage. Marine diesel oil is sometimes also used synonymously with the term “intermediate fuel oil” (IFO). In the strict sense, the term marine diesel oil mainly refers to blends with a very small proportion of heavy fuel oil.
What is the purpose of do diesel oil service tank?
Service tanks onboard ships are used to store and supply treated oil to main engine, auxiliary engine and boilers. The number of such tanks can be one or more. Fuel oil and diesel oil service tanks are normally located as a part of the bulkhead of the engine room.
What is low Sulphur fuel oil?
Shell’s new residual fuel formulation (Patents Pending) is designed to be utilised by engines rated to use ISO 8217 residual fuels. It is a relatively low viscosity, low density fuel oil with good ignition properties.
What is the effect of high sulphur content in fuel?
Diesel fuel contains sulfur which derives from the original crude oil source and can still be present after refining. After combustion in the engine, the sulfur in fuel forms particulates that are a primary contributor to air pollution and the cause of harmful corrosion in the engine.
What is light fuel?
Light fuel oil (LFO) is a crude oil distillate used mostly for the production of heat in domestic and small commercial liquid-fuel burning equipment It is light in color and has on average a specific gravity in the range of 0.82 to 0.86.
How can the viscosity of fuel oil be adjusted in the fuel oil system?
Increasing the temperature of a fuel will reduce its viscosity, and vice-versa. As a result of the varying properties of marine fuels, often within one tank, actual viscosity must be continuously measured and then corrected by temperature adjustment.
What is low sulfur fuel oil used for?
Ultra-low sulfur heating oil gives off almost no particulates. That means when you burn it you are barely affecting the environment. Burning this heating oil will reduce your nitrous oxide emissions by 10 percent over traditional heating oil. It will reduce your sulfur dioxide emissions by 75 percent.
What process removes impurities in fuel oil?
Residual moisture and sulfur and other residual reducing agent impurities contained in automotive fuels and fuel oils are removed by adding to the fuel a chromate compound or a solid acid and circulating the fuel through a filter system comprising at least one filter made up of a cellulosic material attached to a D.C. …