Analysing ship emissions under complex operating conditions: Insights from onboard measurement data.

IF 5.3 3区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Marine pollution bulletin Pub Date : 2024-11-19 DOI:10.1016/j.marpolbul.2024.117280
Ailong Fan, Bin Li, Junhui Yan, Liu Yang, Yaqing Shu, Yuqi Xiong, Mingyang Zhang
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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.

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分析复杂运行条件下的船舶排放:船上测量数据的启示。
这项研究使用轴功率计和 PEMS 评估了老式船舶在典型运行、不同巡航速度和船闸运输过程中的排放特性。研究发现,上游和下游低负荷航行分别占总航行的 67.9% 和 65.4%。船闸通过时,一氧化碳、氮氧化物和二氧化碳的平均排放系数最高,分别为 17.13±0.51 克/千瓦时、16.2±0.62 克/千瓦时和 1075.37±5.72 克/千瓦时,而操纵时二氧化硫的平均排放系数最高,为 0.46±0.001 克/千瓦时。排放量与发动机转速密切相关,巡航时的排放量最大,而离港和靠岸时的排放量则明显集中在 10-15 % 和 5-10 % 的负荷范围内。这项研究强调了在发动机测试循环中考虑低负荷运行条件的重要性,并为海事脱碳和减排战略提供了数据支持。未来的研究应继续探索旧船的排放特性。
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来源期刊
Marine pollution bulletin
Marine pollution bulletin 环境科学-海洋与淡水生物学
CiteScore
10.20
自引率
15.50%
发文量
1077
审稿时长
68 days
期刊介绍: Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.
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