🔥Ship Fuel System | Thermal Oil Heater MFO Settling Tank
Channel: Ratman Bejo
Date: 2020-03-29

https://youtu.be/eWfsp7m7HAM        📱☎️081388666204✔➡️ PT Indira Dwi Mitra➡️
 #ShipFuelSystem #ThermalOilHeater #MFOSettlingTank  #FuelOilSystem

🔥Ship Fuel System | Thermal Oil Heater MFO Settling Tank
Ship Fuel System | Fuel Oil System |
Fuel system is a system used to supply the fuel needed by the main motor. In general :
Low-speed diesel engines can operate with almost any liquid fuel from kerosene (kerosine) to bunker oil.
Modern high-speed diesel engines, due to the short amount of time available for combustion in each cycle requires a more specialized and lighter fuel oil.
In the world of shipping | Maritime | Fuel Classification As Follows:
MGO (Marine gasoil)
MDO (Marine diesel oil)
IFO (Intermediate fuel oil)
MFO (Medium fuel oil
HFO (Heavy fuel oil)

Ship Fuel System |  Fuel Oil System |Fuel

properties The following properties affect the performance and reliability of a diesel engine:
Evaporation
Carbon residue
Viscosity
Sulfur content
Ash
Water and sediment
Flash point, and
Quality of service

For diesel engines on a small scale, high fuel evaporation is required from large diesel engines in order to obtain a more efficient use of fuel, low exhaust temperature, and minimum smoke. 

Carbon residue is carbon left behind after evaporation and burning out of an evaporated material from oil, this shows the tendency of the fuel to form carbon deposits in the engine (piston) permitted carbon residue of 0.1%.

The viscosity of an oil is expressed by a certain volume of oil to flow through a certain diameter hole, the lower the number of seconds the lower the viscosity.

An instrument for measuring fuel viscosity is the visbolimeter saybolt. 

in the fuel system it burns with oil and produces highly corrosive gases that are condensed by the cooled cylinder walls, especially if the engine is operating at a low load and the cylinder temperature is decreasing. Corrosion often caused by gas sulfur is often found in the exhaust system of diesel engines. 

Various specifications do not allow balerang content more than 0.5-1.5%. the flash point is the lowest temperature that must be reached in the oil heating to cause vapor that can be present in sufficient quantities to ignite / burn for a moment.

The minimum flash point for diesel fuel is around 150 degrees Fahrenhet. ignition quality is an important characteristic of diesel fuel, especially in high speed diesel engines which determines easy ignition and cold engine start. 

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The type of combustion obtained from fuel with a good ignition quality will provide a smoother operating quality, the quality of service is measured by an index called cetane number, this number value as a characteristic of diesel fuel is similar to the octane number on a gasoline motor.

Here is one of the fuel systems in the Wartsila 16V32 project guide

Wartsila 16V32 is a main motor that is designed to use HFO fuel continuously. However, in his statement in the project guide this engine can also use several types of fuel with certain specifications.

HFO fuel is pumped by a pump driven by an electric motor to the tank setting, this pump is called the HFO transfer pump . From the HFO tank setting pumped with the HFO Feed Pump to the HFO service tank. On the feed pump there is a filter and also a heater, this heater functions as a heater before the fuel enters the separator.

From the service tank the fuel is driven by an electrically driven supply pump by keeping the pressure at around 4-6 bar before entering the circulating pump, the circulating pump pressure ranges from 8-10 bar. 

Fuel is then pushed into the main engine through a heater and full flow filter, and it is necessary to ensure that the circulating pump capacity must exceed the amount required by the main engine, so that excess fuel supplied will return to the service tank through the venting box and de-aerating valve which in the valve will release gas and let fuel go back into the circulating pump pipe.

In constant engine operation, the engine must use heavy fuel. if this recommendation is not carried out, there will be latent risk or hidden damage to the quality of diesel oil and heavy fuel that is the formation of an imperfect mixture during fuel replacement. Therefore it is not recommended to use diesel oil for engine operation at all workloads.

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