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The paper presents calculation results of carbon dioxide emissions from a ship's steam generator during the usage of different fuel types for 23 different loads. The calculation is done for the combined usage of HFO (Heavy Fuel Oil) and natural gas which is the standard working mode for the observed steam generator. After this, the calculation of CO 2 emissions is done separately for HFO, natural gas, 10 types of lignite coal, 4 types of anthracite coal and for bark wood. It is assumed that the steam generator produces an equal amount of heat in each load using every fuel type. The results are compared between the combined usage of HFO and natural gas, their respective separate usage, the average emissions of lignite coal, the average emissions of anthracite coal and for the emissions of bark wood fuel. It is found that the emissions are lowest for the usage of natural gas and it is closely followed by the combined usage of HFO and natural gas, while the use of only HFO, lignite, anthracite, or bark wood significantly increases the CO2 emissions. |
