VAF instruments 667 - Page 44

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Total CO2 Emission
∆𝑪 = ∆𝑴 ∙ 𝑲
𝑪𝑶𝟐
(F19)
𝑪𝑶𝟐
𝒕𝒐𝒕
=
∑
∆𝑪 (F20)
DC
= CO2 Emission
[kg]
DM
= Mass fuel consumption from
[kg]
K
CO2
= CO2 conversion factor
[kg CO2 / kg fuel]
CO2
tot
= Total CO2 Emission
[kg]
𝑴
𝑪𝑶𝟐
=
∆𝑪
∆𝒕
(F21)
M
CO2
= Mass CO2 emission rate
[kg CO2 / h]
DC
= CO2 emission due to one measurement
[kg]
Dt
= Sample rate
[h]
Fuel CO2 Emission (FCO2)
𝑭𝑪𝑶𝟐 =
𝑴
𝑪𝑶𝟐
𝒗
(F22)
FCO2
= Fuel CO2 emission
[kg CO2/NM]
M
CO2
= Mass CO2 emission
[kg CO2 / h]
v
= Ship speed
[Knots]
Specific Fuel CO2 Emission (SFCO2)
𝑺𝑭𝑪𝑶𝟐 =
𝑴
𝑪𝑶𝟐
∙𝟏𝟎𝟎𝟎
𝑷
(F23)
SFCO2
= Specific fuel CO2 emission per main
engine
[g CO2/kW]
M
CO2
= Mass CO2 emission
[kg CO2 / h]
P
= Shaft power
[kW]
Energy Efficiency Operational Indicator (EEOI)
𝑬𝑬𝑶𝑰 =
𝑴
𝑪𝑶𝟐
𝑪𝒂𝒓𝒈𝒐 ∙ 𝑫𝒊𝒔𝒕𝒂𝒏𝒄𝒆
(F24)
EEOI
[kgCO2 / ton·NM]
M
CO2
[kg CO2 / h]
Cargo
[ton or TEU or persons]
Distance
[NM]
This quotient indicates the operational efficiency of your vessel. The EEOI is taking into account CO2
emissions from your consumers, which are monitored by the PEM4 + SPU3 system, the mass of cargo
in DWT, number of TEU or number of persons and the distance sailed.