VAF instruments 667 - Engine Fuels and Fuel Type Settings; Engine Fuels Configuration; Fuel Type Parameters

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Engine Fuels submenu
Figure 55 – Fuel type screen: Manual fuel selection
Figure 56 – Fuel type screen: Automatic fuel selection
In the Engine Fuels submenu, fuel types per engine/consumer will be allocated.
In case two different fuels are allocated to an engine/consumer the system can be switched manual or
automatic to the actual fuel the engine/consumer is running on.
When set to “Manual” the type can be selected.
When set to “Automatic’ the Fuel High and Fuel Low can be selected. The system will switch
automatically to specific fuel depending on the “Switching Temperature”.
Higher as switching temperature will select “Fuel High”. Lower as switching temperature will select “Fuel
Low”.
The different fuel types will be entered in the Fuel Type submenu.
Fuel Type Settings submenu
Figure 57 – Fuel Type screen
In the Fuel Type submenu a maximum of six (6) fuel types can be set. Each fuel type is freely selectable
per engine/consumer through the Engine Fuels submenu.
The following fuel parameters can be set per fuel type:
• Name of the fuel
e.g. HFO, MGO or other
• Density
default 0.998 kg/l
• Thermal expansion
default 0.070 %/°C
• Reference temperature
default 15.6 °C
• ROB (Remain on Board)
default 0 ton
• CO2 conversion factor for
calculating the CO2 emissions
per kg of fuel
default 3.1144 for HFO
• Caloric value of the fuel
default 40.87 MJ/kg
• Water percentage
default 0 %
• Sulfer percentage
default 0 %