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Green Shipping
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Green Shipping

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

Deadline for manuscript submissions: closed (1 January 2021) | Viewed by 23443

Special Issue Editor

Dr. Wojciech Litwin

E-Mail Website
Guest Editor
Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland
Interests: green shipping, especially: hybrid ship propulsion and water lubricated stern tube bearings

Special Issue Information

Dear Colleagues,

It is my pleasure to invite you to contribute to a Special Issue of the Journal of Marine Science and Engineering
(ISSN 2077-1312) entitled “Green Shipping”.

As you know, in recent years, some big steps forward have been taken in shipbuilding technology and propulsion systems. The future presents many more challenges, with zero-emission ships expected by 2030.

Zero-emission, “green” waterborne transport is to benefit future generations. The European Union expects zero-emission marine solutions to be demonstrated by 2030. These solutions will then be implemented to achieve absolutely green inland-waterways and maritime ships by 2050. The EU’s priorities are undoubtedly very ambitions. The main problems which have to be solved in order to achieve them include: decarbonization of all main ship types, improving the environmental performance of existing vessels, retrofitting ships, developing technology enabling the use of zero-carbon fuels, exploiting the full potential of smart technologies to increase energy efficiency, and delivering comprehensive risk assessments for the new technologies. Green shipping is not just a priority of the EU, however. It is important for the future of the global community, and a number of pioneering technologies are being developed in the Far East at present.

We hope to publish papers on this topic from all over the world, with the aim of sharing knowledge and helping to keep our planet as clean as possible for future generations. 

Dr. Wojciech Litwin
Guest Editor

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

  • Green shipping
  • Zero emission
  • Hybrid ship propulsion
  • Electric ship propulsion
  • Energy efficiency
  • Water-lubricated marine bearings
  • Water-base and bio oils for marine application
  • Clean technologies for the marine industry
  • Autonomous ships
  • Sea routing
  • Life cycle assessment
  • Clean manufacturing

Published Papers (2 papers)

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Research

17 pages, 2941 KiB  
Article
Data Driven In-Cylinder Pressure Diagram Based Optimization Procedure
by Mina Tadros, Manuel Ventura and C. Guedes Soares
J. Mar. Sci. Eng. 2020, 8(4), 294; https://doi.org/10.3390/jmse8040294 - 21 Apr 2020
Cited by 18 | Viewed by 3900
Abstract
An engine optimization model is developed to fit the calculated in-cylinder pressure diagram to the experimental data by finding the optimal values of the start angle of injection and the amount of injected fuel for different engine loads. Firstly, the engine model is [...] Read more.
An engine optimization model is developed to fit the calculated in-cylinder pressure diagram to the experimental data by finding the optimal values of the start angle of injection and the amount of injected fuel for different engine loads. Firstly, the engine model is built in Ricardo Wave software and some parts are calibrated using data collected from the manufacturer. Then, an optimization process is performed based on the fitness function that includes the objective of the study and the penalty functions to express constraints. This optimization environment simulates the performance of a marine generator system for three different loads by minimizing the mean absolute percentage error (MAPE) between the in-cylinder pressure simulated data and the measured data along 40 degrees of the combustion process and by verifying the firing pressure and the engine brake power. The percentage of error between the calculated and the real thermodynamic data does not exceed 3.4% and the MAPE between the calculated and the real in-cylinder pressure diagram along the combustion process does not exceed 5.7% for the different loads. The proposed method can be further used to find the optimal value of different input parameters during the calibration process of different engine numerical models. Full article
(This article belongs to the Special Issue Green Shipping)
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22 pages, 3773 KiB  
Article
A Preliminary Study on an Alternative Ship Propulsion System Fueled by Ammonia: Environmental and Economic Assessments
by Kyunghwa Kim, Gilltae Roh, Wook Kim and Kangwoo Chun
J. Mar. Sci. Eng. 2020, 8(3), 183; https://doi.org/10.3390/jmse8030183 - 07 Mar 2020
Cited by 96 | Viewed by 18951
Abstract
The shipping industry is becoming increasingly aware of its environmental responsibilities in the long-term. In 2018, the International Maritime Organization (IMO) pledged to reduce greenhouse gas (GHG) emissions by at least 50% by the year 2050 as compared with a baseline value from [...] Read more.
The shipping industry is becoming increasingly aware of its environmental responsibilities in the long-term. In 2018, the International Maritime Organization (IMO) pledged to reduce greenhouse gas (GHG) emissions by at least 50% by the year 2050 as compared with a baseline value from 2008. Ammonia has been regarded as one of the potential carbon-free fuels for ships based on these environmental issues. In this paper, we propose four propulsion systems for a 2500 Twenty-foot Equivalent Unit (TEU) container feeder ship. All of the proposed systems are fueled by ammonia; however, different power systems are used: main engine, generators, polymer electrolyte membrane fuel cell (PEMFC), and solid oxide fuel cell (SOFC). Further, these systems are compared to the conventional main engine propulsion system that is fueled by heavy fuel oil, with a focus on the economic and environmental perspectives. By comparing the conventional and proposed systems, it is shown that ammonia can be a carbon-free fuel for ships. Moreover, among the proposed systems, the SOFC power system is the most eco-friendly alternative (up to 92.1%), even though it requires a high lifecycle cost than the others. Although this study has some limitations and assumptions, the results indicate a meaningful approach toward solving GHG problems in the maritime industry. Full article
(This article belongs to the Special Issue Green Shipping)
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