Numerical analysis of economic and environmental benefits of marine fuel conversion from diesel oil to natural gas for container ships

被引:0
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作者
Ahmed G. Elkafas
Mohamed M. Elgohary
Mohamed R. Shouman
机构
[1] Alexandria University,Department of Naval Architecture and Marine Engineering, Faculty of Engineering
[2] Arab Academy for Science,Department of Marine Engineering Technology, College of Maritime Transport & Technology
[3] Technology and Maritime Transport,undefined
关键词
Natural gas; Energy Efficiency Design Index; Ship emissions reduction; Cost-effectiveness; Container ship; IMO regulations;
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摘要
Shipping is a significant contributor to global greenhouse gas (GHG) and air pollutant emissions. These emissions mainly come from using diesel fuel for power generation. In this paper, the natural gas is proposed as an alternative marine fuel to be used instead of conventional marine diesel oil. Numerical analysis of environmental and economic benefits of the natural gas-diesel dual-fuel engine is carried out. As a case study, a container ship of class A7 owned by Hapag-Lloyd has been investigated. The results show that the proposed dual-fuel engine achieves environmental benefits for reducing carbon dioxide (CO2), nitrogen oxides (NOx), sulfur oxides (SOx), particulate matter (PM), and carbon monoxide (CO) emissions by 20.1%, 85.5%, 98%, 99%, and 55.7% with cost effectiveness of 109, 840, 9864, 27761, and 4307 US$/ton, respectively. The results show that the conversion process to the dual-fuel engine will comply with the current and future IMO regulations regarding air pollutant emissions. On the other hand, using the proposed dual-fuel engine on the container ship will improve the ship energy efficiency index by 29.6 % with annual fuel cost saving of 4.77 million US dollars.
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页码:15210 / 15222
页数:12
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