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Average emissions and energy use of a bulk carrier in 2016
Bulk carrier, medium CO HC NOx PM CH4 N2O SO2 CO2 CO2e Fuel
consumption
Energy [MJ]
[g/ship km]   254 94 2 564 37 10.2 2.7 63 103 942 105 004 33 330 1 347
[g/tkm] 0.030 0.011 0.31 0.0044 0.0012 0.00032 0.0075 12 13 4.0 0.16
Power Bulk freight weight
of DWT
Specific consumption
GT DWT Main engines Speed Distance Main engines Aux. engines
[t] [t] [kW] [knots] [km] [%] [g/kWh] [g/kWh]
10 000 14 000 6 000 13 500 60% 195 210
Bulk carrier, large CO HC NOx PM CH4 N2O SO2 CO2 CO2e Fuel
consumption
Energy [MJ]
[g/ship km]   363 136 3 704 52 15 3.9 89 148 083 149 601 47 509 1 919
[g/tkm] 0.023 0.0085 0.23 0.0033 0.00091 0.00024 0.0056 9.3 9.4 3.0 0.12
Power Bulk freight weight
of DWT
Specific consumption
GT DWT Main engines Speed Distance Main engines Aux. engines
[t] [t] [kW] [knots] [km] [%] [g/kWh] [g/kWh]
20 000 32 000 9 000 13 1 000 50% 195 210
Emission factors include both directions, thus return trip need not to be calculated
g/ship km = grams per ship kilometre (the transport of the entire ship over one kilometre)
g/tkm = grams per tonne kilometre (the transport of one net tonne over one kilometre)
DWT = deadweight tonnage = the sum of the masses of cargo, fuel, fresh water, ballast water, provisions, passengers and crew
CO = carbon monoxide, HC = total hydrocarbons (including methane CH4), NOx = nitrogen oxides, PM = particulate matter, CH4 = methane, N2O = nitrous oxide, SO2 = sulphur dioxide, CO2 = carbon dioxide, CO2e = equivalentic CO2 (CH4 factor 25, N2O factor 298), MJ = megajoule 
VTT Technical Research Centre of Finland Ltd
LIPASTO unit emissions database
Last updated 6.7.2017