Analysing ship emissions under complex operating conditions : Insights from onboard measurement data
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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16
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Marine Pollution Bulletin, Volume 209
Abstract
This research evaluated the emission characteristics of old ships during typical operations, under varying cruising speeds, and during lock transit, using a shaft power meter and PEMS. The research revealed that upstream and downstream low-load voyages accounted for 67.9 % and 65.4 % of the total voyage, respectively. The average emission factors of CO, NOX and CO2 were highest under lock transit with 17.13±0.51 g/kWh, 16.2±0.62 g/kWh and 1075.37±5.72 g/kWh, respectively, while SO2 was highest under manoeuvring with 0.46 ± 0.001 g/kWh. Emissions are closely correlated with engine speed, with the largest emissions at cruising, and emissions at departure and docking significantly concentrated in the 10–15 % and 5–10 % loads. This research emphasizes the importance of considering low-load operating conditions in engine test cycles and provides data support for maritime decarbonization and emission reduction strategies. Future research should continue to explore the emission characteristics of old ships.Description
Publisher Copyright: © 2024
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Citation
Fan, A, Li, B, Yan, J, Yang, L, Shu, Y, Xiong, Y & Zhang, M 2024, 'Analysing ship emissions under complex operating conditions : Insights from onboard measurement data', Marine Pollution Bulletin, vol. 209, 117280. https://doi.org/10.1016/j.marpolbul.2024.117280