Carbon emission estimation of a chemical tanker in the life cycle

Carbon emission reducing in ship industry is quite important in the world. Currently there are two main methods provided by IMO for estimating CO₂ emission from a ship, they are the draft guidelines on the method of calculation of the new ship design CO₂ index and the energy efficiency design index calculation method. For the purpose of calculating carbon emission of shipping industry, the CO₂ emission from a 5000 DWT chemical tanker is estimated by adopting the two methods in this paper. The results obtained are closed to the current average level of ships´ carbon emission. The conclusions show that both of the two estimating methods are suitable for estimating the CO₂ emission of the 5000 DWT chemical tanker and the CO₂ emission of the chemical tanker in operating stage is less than that in shipbuilding stage.