在复杂的操作条件下分析船舶排放:从船上测量数据的洞察力
Ailong Fan1, Bin Li2, Junhui Yan3
1State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan, China; School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan, China; East Lake Laboratory, Wuhan, China.
Marine pollution bulletin
|November 20, 2024
概括
旧船的排放量在锁过境和机动期间是最高的. 了解这些低负载运行对于制定有效的海上脱碳和减排战略至关重要.
科学领域:
- 海洋工程 海洋工程
- 环境科学 环境科学
- 海军建筑 海军建筑
背景情况:
- 较旧的船只对海上排放有很大的贡献.
- 了解船舶运营排放对于环境法规至关重要.
- 低负荷运行很常见,但在研究中通常代表性不足.
研究的目的:
- 在各种运营阶段评估旧船的排放特性.
- 在典型的航行,巡航和锁定过境期间识别排放热点.
- 提供支持海上脱碳努力的数据.
主要方法:
- 使用了轴功率计和便携式排放测量系统 (PEMS).
- 在典型运行,变速和锁过境期间监控排放.
- 对CO,NOX,CO2和SO2进行分析的排放因子.
主要成果:
- 低载荷航行占总航行时间的65%以上.
- 对CO,NOX和CO2的最高平均排放因子发生在锁定运输过程中.
- SO2排放在机动时达到峰值;与发动机转速相关的排放.
结论:
- 锁过境和机动是老船高排放的关键阶段.
- 当前的发动机测试周期应该包含低负载条件.
- 这些发现支持针对海上减排和脱碳的有针对性的战略.
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