Advancing Marine Sustainability: Alternative Fuels and Decarbonizing Technologies for a Low-Carbon Future

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Marine Energy".

Deadline for manuscript submissions: 10 June 2025 | Viewed by 385

Special Issue Editors


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Guest Editor
Marine Engineering, Liverpool Logistics, Offshore and Marine Research Institute (LOOM), School of Engineering, Liverpool John Moores University, Liverpool L3 3AF, UK
Interests: life cycle assessment applied to marine operations and machinery; sustainable development, energy efficiency, renewable energy, alternative fuels; marine environmental protection and regulation
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Co-Guest Editor
Marine Technology, Liverpool Logistics, Offshore and Marine Research Institute (LOOM), School of Engineering, Liverpool John Moores University, Liverpool L3 3AF, UK
Interests: safety and risk analysis of complex engineering systems; design and operation of maritime engineering systems; ships, offshore installations, and port terminals
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The maritime industry is at the forefront of global efforts to transition towards sustainability, aligning with the ambitious international decarbonization targets set by organizations such as the International Maritime Organization (IMO). This transition involves adopting innovative solutions in order to reduce greenhouse gas emissions and enhance energy efficiency across maritime operations.

Alternative fuels such as ammonia, hydrogen, methanol, and biofuels are particularly noted for their potential ability to replace traditional fossil fuels. However, the high cost, supply chain constraints, and infrastructure requirements associated with alternative fuels remain critical barriers to their widespread adoption. Alongside alternative fuels, advanced decarbonization technologies are paving the way for cleaner shipping. These include waste heat recovery systems, wind-assisted propulsion technologies, battery–electric propulsion, air lubrication systems, cold-ironing, and carbon capture solutions, which all contribute to greater operational efficiency and reduced emissions.

This Special Issue explores the technical and environmental feasibility of these solutions, emphasizing their integration into existing maritime systems. Topics of interest include lifecycle assessments, state-of-the-art applications and prototypes, and the safety considerations associated with these innovative approaches.

This Special Issue aims to present innovative research that advances the maritime industry's journey towards a sustainable, low-carbon future. It addresses both the challenges and opportunities associated with this critical transformation.

  • Comprehensive reviews of emerging maritime technologies and their applications.
  • Research on alternative fuels and the development of their infrastructure in ports and shipyards.
  • Studies on retrofitting and implementing greening technologies for existing fleets.
  • Best practices for achieving climate-neutral maritime transport.

In this Special Issue, we welcome the submission of original research articles and reviews whose scope includes, but is not limited to, the following topics:

  • Alternative fuels (life cycle analysis, fuel blending strategies, supply chain and logistics, technological advancements on marine vessels, offshore platforms, and shore facilities).
  • Cold ironing and shore power supply technologies (energy demand forecasting, regulatory support, the electrification of port operations, renewable energy integration, green shipping corridors).
  • Decarbonization technologies (innovative materials, air lubrication systems, fuel cells, batteries, waste heat recovery systems, wind-assisted propulsion).
  • Energy efficiency advancement applications (hull, propeller, speed, weather optimisations, energy saving devices, engine power limitation, shaft power limitation, shaft generators, diesel-electric propulsion).
  • Safety and risk management of green technologies (handling of fuels or systems, infrastructure requirements).

Dr. Eduardo Blanco-Davis
Prof. Dr. Jin Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • marine renewable energy
  • alternative fuels
  • energy efficiency
  • environmental assessment
  • life cycle analysis

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Published Papers (1 paper)

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Research

12 pages, 3073 KiB  
Article
A Comparative Study of Combustion Characteristics for the Evaluation of the Feasibility of Crude Bioethanol as a Substitute for Marine Fuel Oil
by Ju-Wan Kim and Tae-Ho Lee
J. Mar. Sci. Eng. 2025, 13(3), 433; https://doi.org/10.3390/jmse13030433 - 25 Feb 2025
Viewed by 198
Abstract
In this study, the potential use of corn-based crude bioethanol was investigated as an alternative energy source for marine fuel oil under increasingly stringent maritime emissions regulations. A small-scale combustion chamber with a capacity of approximately 1 ton was developed, and comparative combustion [...] Read more.
In this study, the potential use of corn-based crude bioethanol was investigated as an alternative energy source for marine fuel oil under increasingly stringent maritime emissions regulations. A small-scale combustion chamber with a capacity of approximately 1 ton was developed, and comparative combustion tests were conducted with various fuel types, including MGO, diesel, kerosene, and BE100. In addition, component analysis was performed and compared using the ISO-8217 method. Complete combustion of the fuel was performed under the same experimental conditions of stable atmospheric pressure and temperature. BE100 exhibited an 8.3% increase in the oxygen concentration and a 5.9% reduction in the carbon dioxide emissions compared to MGO. Despite the low nitrogen oxide (NOx) emissions of MGO at approximately 34.4 ppm, BE100 demonstrated superior reduction potential, with a reading of 1.9 ppm. Sulfur oxides (SOx) were not detected in any of the fuels tested, underscoring the high quality of the currently available low-sulfur MGO. The exhaust gas temperatures were reduced by approximately 44.6% when using BE100, from 367.1 °C for MGO to 203.2 °C for BE100. However, the combustion efficiency of BE100 was 8.3% lower than that of MGO. While crude bioethanol shows promise in reducing exhaust gas emissions, its limited thermal output poses a challenge for direct substitution. Future studies should investigate the development of blended fuels combining bioethanol and conventional marine fuels to improve the performance and sustainability. Full article
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