对船舶推进的不同替代燃料进行比较分析
Giorgio Zamboni1, Filippo Scamardella2, Paola Gualeni3
1DIME, Department of Mechanical, Energy, Management and Transportation Engineering, University of Genoa, Genoa, Italy.
Heliyon
|February 26, 2024
概括
海洋行业必须使用替代燃料减少温室气体 (GHG) 排放. "清醒"分析显示,与化石燃料相比,绿色燃料显著减少了排放,有助于实现IMO的目标.
科学领域:
- 海洋环境科学 海洋环境科学
- 化学工程是化学工程的组成部分.
- 可持续的能源 可持续的能源
背景情况:
- 国际海事组织 (IMO) 要求在航运方面大幅减少温室气体 (GHG) 排放.
- 实现这些目标需要在物流,数字化,水力动力学,机械,能源和后处理技术方面取得进展.
- 替代燃料为减轻航运对环境的影响提供了巨大的机会.
研究的目的:
- 为了评估液化天然气 (LNG),甲醇和氨的Well-to-Wake (WtW) CO2 相当的排放因子.
- 为了比较通过化石和可再生能源生产的这些替代燃料的排放性能.
- 评估替代燃料在船舶行业减少温室气体排放方面的潜力.
主要方法:
- 对替代海洋燃料的WtW排放因子进行了广泛的文献研究.
- 利用一个涉及两种不同的运行配置文件的游轮的案例研究.
- 使用WtW方法计算和比较二氧化碳等效排放因子.
主要成果:
- 根据燃料生产途径 (灰色与绿色) 观察到WtW排放的显著变化.
- 案例研究表明,与化石燃料相比,绿色甲醇和氨可以大幅减少温室气体排放.
- 碳强度指标 (CII) 的结果验证了绿色替代燃料的有效性.
结论:
- 在对替代海洋燃料对环境影响进行整体评估时,WtW方法至关重要.
- 液化天然气,甲醇和氨的绿色生产途径是实现船运中大幅减少温室气体排放的关键.
- 转向可持续的替代燃料对于海事部门实现国际海事组织的气候目标至关重要.
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