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Future Trends in Ship Energy-Saving Devices and Solutions
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Future Trends in Ship Energy-Saving Devices and Solutions

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: 31 October 2026 | Viewed by 1431

Special Issue Editors

Prof. Dr. Simone Mancini

E-Mail Website
Guest Editor
1. Department of Industrial Engineering, University of Napoli “Federico II”, 80125 Napoli, Italy
2. Department of Hydro and Aerodynamics, FORCE Technology, 2800 Kongens Lyngby, Denmark
Interests: CFD ship hydrodynamics; CFD verification and validation procedures; high-speed craft; ship design; ship manoeuvering and seakeeping
Special Issues, Collections and Topics in MDPI journals
Dr. Fabio De Luca

E-Mail Website
Guest Editor
Dipartimento di Ingegneria industriale, Università degli Studi di Napoli Federico II, Naples, Italy
Interests: naval architecture; high-speed crafts; experimental fluid dynamics; seakeeping; towing tank tests; full-scale tests; performance prediction; hull forms optimization
Special Issues, Collections and Topics in MDPI journals
Dr. Stephan Berger

E-Mail Website
Guest Editor
Department of Hydro and Aerodynamics, FORCE Technology, 2800 Kongens Lyngby, Denmark
Interests: hydrodynamics of ship propulsion; propeller cavitation and underwater radiated noise; CFD and experimental methods in marine hydrodynamics; manoeuvring; ship design and optimization

Special Issue Information

Dear Colleagues,

The maritime industry is under increasing pressure to decarbonize and comply with stringent environmental regulations, creating a growing demand for effective and smart solutions. Energy-saving devices and solutions (ESDS) for ships not only provide immediate and cost-effective energy-efficiency measures for both new and existing ships but also represent a long-term necessity, given the limited availability and high cost of alternative fuels compared to conventional fuels.

This Special Issue focuses on the latest advancements in ship ESDS. Contributions may address both well-established and emerging technologies, including propeller boss cap fins, rudder bulbs, pre-swirl devices, air lubrication systems, and operational strategies such as trim optimization and weather routing. Topics of interest include the historical development and evolution of these solutions, as well as novel research employing advanced computational fluid dynamics (CFD), experimental analysis, sea trial data, and real-time onboard measurements.

We welcome high-quality submissions presenting original research, practical case studies, and comprehensive reviews. Particularly encouraged are papers that combine both theoretical insights with practical guidance for marine engineers, naval architects, and researchers.

Prof. Dr. Simone Mancini
Dr. Fabio De Luca
Dr. Stephan Berger
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 250 words) can be sent to the Editorial Office for assessment.

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 semimonthly 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

  • ship energy efficiency
  • energy saving devices
  • marine propulsion
  • hydrodynamics
  • naval architecture
  • decarbonization
  • CFD
  • sustainable shipping
  • propeller
  • rudder

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

22 pages, 5246 KB  
Article
Experiment Tests and Numerical Simulations of Leakage from Double-Hull Oil Tanks in a Fixed State
by Wenzhuo Zhang, Renqing Zhu, Xinlong Zhang, Qingyi Qu and Hui Zhao
J. Mar. Sci. Eng. 2026, 14(5), 412; https://doi.org/10.3390/jmse14050412 - 24 Feb 2026
Viewed by 464
Abstract
To investigate the leakage characteristics of damaged double-hull oil tanks in still water, this study conducted both model tests and numerical simulations on the leakage process of a damaged double-hull oil tank model. Based on a 75,000 DWT oil tanker, a scaled model [...] Read more.
To investigate the leakage characteristics of damaged double-hull oil tanks in still water, this study conducted both model tests and numerical simulations on the leakage process of a damaged double-hull oil tank model. Based on a 75,000 DWT oil tanker, a scaled model was designed according to similarity criteria. The effects of different damaged locations (side-shell and bottom) and various breach sizes on the tank’s leakage behavior were examined. The evolution of multiphase flow inside the tank and the surrounding flow field was captured, and the leakage pressure under fixed model conditions was measured. The model test results indicate that larger breach sizes lead to a more rapid stabilization of the pressure load during leakage and the liquid exchange process. For side shell breaches, after an initial phase of pressure-difference-driven leakage, a density-driven flow develops at the stable liquid interface. Bottom breaches cause flooding that results in an oil sealing phenomenon at the bottom, leading to a pronounced oil–water stratification. Corresponding numerical simulations of the model tests were performed, and the results were compared and validated against the model test data. Full article
(This article belongs to the Special Issue Future Trends in Ship Energy-Saving Devices and Solutions)
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43 pages, 18814 KB  
Article
Construction of Typical Sailing Conditions for Harbor Tugs Based on WOA-K-Means++ Clustering and Hidden Markov Models
by Zhao Li, Wuqiang Long and Hua Tian
J. Mar. Sci. Eng. 2026, 14(3), 270; https://doi.org/10.3390/jmse14030270 - 28 Jan 2026
Viewed by 567
Abstract
The global shipping industry faces severe carbon emission challenges. Harbor tugs, as significant contributors to port emissions, require improved energy efficiency. However, their sailing conditions are complex and dynamic, making temporal feature characterization difficult with traditional static or simplistic clustering methods. To address [...] Read more.
The global shipping industry faces severe carbon emission challenges. Harbor tugs, as significant contributors to port emissions, require improved energy efficiency. However, their sailing conditions are complex and dynamic, making temporal feature characterization difficult with traditional static or simplistic clustering methods. To address this, this study proposes a novel method for constructing typical sailing conditions by integrating an enhanced clustering approach with Hidden Markov Models (HMM). First, kinematic segments are extracted from processed ship speed data, and key features are selected and reduced via Principal Component Analysis (PCA). Subsequently, an improved clustering model combining the Whale Optimization Algorithm (WOA) and K-means++ is developed to categorize segments into six distinct condition types. These clustered states then serve as the hidden states of an HMM, whose learned transition matrix synthesizes a 3600 s typical sailing condition profile. The constructed profile is validated through multi-dimensional comparison with original data, demonstrating high fidelity in statistical characteristics, temporal properties, and distribution similarity. The results confirm that the proposed method can accurately replicate the operational patterns of harbor tugs. This study provides a reliable data foundation for the energy efficiency assessment and optimization of harbor tugs and offers a new methodological perspective for constructing operational profiles for ships and other mobile machinery. Full article
(This article belongs to the Special Issue Future Trends in Ship Energy-Saving Devices and Solutions)
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