HFO = Heavy Fuel Oil 380 CST = the grade of fuel oil representing viscosity, quality, etc.
In addition to finding the "sweet spot" as the other poster indicated which is the RPM and load that the engine uses the least amount of fuel per KWm HFO reduction can also been realized by using new technology, E-Fuel. E-Fuel, reduces emissions as traditional emulsions but in the case of HFO can increase the fuel efficiency using HFO up to 38% in a rotating engines. There are two reasons that the 38% effective can be reached, the heavies don't have to be removed from HFO to prevent damage to the engine and the fuel is 43% more efferent in converting the HFO into mechanical energy.
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All fuel oils have a flash point of 490F (254C). Distillate fuels have lower flash points.
Flash point means nothing but the amount of heat it takes to make the Gasoline or Diesel combust
what is a flashpoint <><><> The temperature at which a substance gives off an ignitable vapor is the flash point. If the flash point is under 100 degrees F, it is a flammable (gasoline). If it is over 100, it is a combustible (diesel fuel). Flash point is NOT the ignition temperature.
flash point is the temperature of the fuel at which a momentary or may be a instantaneous flame occurs occurs when you introduce a source of flame over the surface of the fuel (not by contact, the introductory flame should always be above the surface of the fuel)fire point is the temperature of the fuel at which at least a 5 second flame occurs when you introduce a source of flame above the surface of the fuel.
MDO and HFO prices for ships
flash point of petrol is > -45 degree celsius flash point of diesel is 52-95 degree celsius
Diesel engines do not require "ignition" to burn diesel fuel--it is powered by the "heat of compression" therefore diesel fuel has a much higher "flash point" than gasoline. If you were to put gasoline in a diesel engine you would probably blow the heads off the engine. Due to lower "flash point" (temperature when fuel ignites). If you were to put diesel fuel in a gasoline powered engine, it would not ignite and engine will not start. Due to higher "flash point).
The viscosity of HFO (heavy fuel oil) varies depending on its grade and temperature. Generally, HFO has higher viscosity than other fuels, such as diesel or gasoline. It has a thick, sticky consistency that makes it more challenging to flow and pump through pipelines and engines, especially at lower temperatures.
Unburnt fuel fills the chambers and silencer, causing the loud bang of a 'back fire'.