VAF instruments 667 - Power;Speed Diagram Submenu; Environment Submenu

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Power/Speed Diagram submenu
Figure 39 – Power/Speed Diagram screen
In this submenu the actual power of the main engine(s) is presented in a Power/Speed diagram. The
graph shows the Total Propulsion Power of the main engine(s) and the respective vessel speed in
Nautical Miles. SOG = Speed Over Ground, STW = Speed Through Water.
In the Settings menu there is a possibility to enter a reference curve (see white curve in picture above).
In this case the reference curve is a guideline to judge if the vessel is sailing as efficient as just after sea
trials. For more details see section 7.6.6.
Environment submenu
Figure 40 – Environment screen
EEOI TEU
or
EEOI DWT
or
EEOI PERSONS
When fuel flow meters are incorporated in the PEM4 + SPU3 system this screen displays the CO2
emissions In kilogram CO2 per kWh.
When an additional speed signal is incorporated, the system will also display CO2 emissions per Nautical
Mile and the Energy Efficiency Operational Indicator (EEOI) which represents kilograms of CO2
emissions per Nautical Mile per cargo unit. The unit for cargo can be adapted to: TEU, DWT or persons.
The emissions in kg·CO2/NM and kg·CO2/kWh are representing CO2 emissions of the main engine.
EEOI is representing the total CO2 emissions of all consumers monitored by the PEM4 + SPU3 system.