TY - JOUR
T1 - Analysing ship emissions under complex operating conditions : Insights from onboard measurement data
AU - Fan, Ailong
AU - Li, Bin
AU - Yan, Junhui
AU - Yang, Liu
AU - Shu, Yaqing
AU - Xiong, Yuqi
AU - Zhang, Mingyang
N1 - Publisher Copyright:
© 2024
PY - 2024/12
Y1 - 2024/12
N2 - 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.
AB - 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.
KW - Emission factors
KW - Low-load
KW - Navigation conditions
KW - Ship emissions
KW - Test system
UR - http://www.scopus.com/inward/record.url?scp=85209590356&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2024.117280
DO - 10.1016/j.marpolbul.2024.117280
M3 - Article
AN - SCOPUS:85209590356
SN - 0025-326X
VL - 209
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 117280
ER -