Special Issue "Decarbonization of Ship Power Plants"

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

Deadline for manuscript submissions: 20 April 2023 | Viewed by 3246

Special Issue Editor

Prof. Dr. Sergejus Lebedevas
E-Mail
Guest Editor
Department of Marine Engineering, Faculty of Marine Technology and Natural Sciences, Klaipeda University, Vilnius, Lithuania
Interests: application of alternative marine fuels; decarbonization technologies for a ship power plants; energy efficiency analysis of a ships cogeneration systems; parametric analysis of a energy efficiency and ecological parameters of ships combined power systems

Special Issue Information

Dear Colleagues,

The problem of decarbonization is as relevant for the maritime sector as it is for land transport, which is a major air pollutant. In the future, the environmental impact from ships will increase due to an expansion in the global fleet and the associated consumption, almost exclusively, of fossil fuels. Accordingly, the International Maritime Organization adopted amendments to MARPOL 73/78, which introduced the CO2 emission limitation indicator—the Energy Efficiency Design Index (EEDI). EEDI also serves as an indicator of a ship's energy efficiency. The regulated improvement in the short term EEDI of 20-30% allows for the implementation of a wide range of innovative technologies that provide: reduction of resistance to movement, cogeneration and trigeneration of secondary heat sources, effective use of unconventional and alternative fuels (including natural gas, synthetic alcohols, hydrogen, ammonium), improvement in propulsion of ships by sources of alternative energy such as wind power (Magnus effect, for instance), solar power, etc. Achieving a synergistic effect by the application of innovations provides a systematic approach to the multilevel parametric optimization of the indicators of systems and power plants of a ship.

The Special Issue is focused on a broad presentation of the results of scientific research, design- technological and regulatory decisions related to the above-mentioned aspects of the problem.

Prof. Dr. Sergejus Lebedevas
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 2000 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

  • EEDI
  • energy efficiency
  • main and auxiliary engines
  • cogeneration systems
  • alternative fuels
  • ship propulsion
  • parametric optimization
  • CO2 standardization methodology

Published Papers (4 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Article
Ship Power Plant Decarbonisation Using Hybrid Systems and Ammonia Fuel—A Techno-Economic–Environmental Analysis
J. Mar. Sci. Eng. 2022, 10(11), 1675; https://doi.org/10.3390/jmse10111675 - 07 Nov 2022
Viewed by 306
Abstract
The shipping sector decarbonisation has attracted great attention due to the sector contribution to worldwide carbon emissions. This study aims at investigating the techno-economic–environmental performance of different ship power plants to identify sustainable solutions for a case study cargo ship. Four scenarios, considering [...] Read more.
The shipping sector decarbonisation has attracted great attention due to the sector contribution to worldwide carbon emissions. This study aims at investigating the techno-economic–environmental performance of different ship power plants to identify sustainable solutions for a case study cargo ship. Four scenarios, considering conventional and hybrid power plants, the latter with installed batteries, both using marine gas oil and ammonia fuels, are analysed to estimate the pertinent lifetime key performance indicators characterising their economic and environmental performance. Additionally, taxation schemes of varying extent are considered, and a sensitivity analysis is carried out on the most uncertain input parameters, namely, fuel prices and capital cost. This study results demonstrate that the hybrid plant using ammonia exhibits the lowest environmental footprint associated with 66% carbon emission reduction, whilst increasing the lifetime cost by 40%. Taxation schemes close to 340 EUR per CO2 tonne are required to render it economically viable whilst meeting the IMO targets for 2050 on CO2 emissions reduction. The sensitivity analysis reveals that the economic parameters is highly sensitive to fuel price and the capital expenditure. Full article
(This article belongs to the Special Issue Decarbonization of Ship Power Plants)
Show Figures

Figure 1

Article
Supercritical CO2 Power Cycle and Ejector Refrigeration Cycle for Marine Dual Fuel Engine Efficiency Enhancement by Utilizing Exhaust Gas and Charge Air Heat
J. Mar. Sci. Eng. 2022, 10(10), 1404; https://doi.org/10.3390/jmse10101404 - 01 Oct 2022
Viewed by 417
Abstract
Dual fuel engines with LNG as fuel have become a feasible solution for ship power units in the current situation, but their fuel efficiency needs to be further enhanced to meet the increasingly stringent emission requirements. This paper designs a dual-loop system, including [...] Read more.
Dual fuel engines with LNG as fuel have become a feasible solution for ship power units in the current situation, but their fuel efficiency needs to be further enhanced to meet the increasingly stringent emission requirements. This paper designs a dual-loop system, including a supercritical CO2 power cycle and a thermally driven ejector refrigeration cycle, for recovering the exhaust gas and charge air heat of a marine dual fuel engine. The models of the waste heat recovery system, the evaluation indicators of the combined system, and the genetic algorithm optimization program are developed. Compared to the standalone machine, the waste heat recovery system can improve by about 9.3% of the engine’s fuel efficiency. The performance analysis shows that the ejector contributes to the highest share of exergy destruction and accounts for approximate 53% of the refrigeration cycle. There are optimal values for the compressor inlet temperature of about 8.1 MPa and for the turbine inlet temperature of about 305 °C. Finally, after optimization, the specific fuel consumption, fuel efficiency, and CO2 emissions of the combined system are around 137.9 g/kWh, 53.3%, and 537.4 g/kWh, respectively. It provides a feasible solution in which the charge air cooler can be wholly replaced by the ejector refrigeration cycle. Full article
(This article belongs to the Special Issue Decarbonization of Ship Power Plants)
Show Figures

Figure 1

Article
Research of Organic Rankine Cycle Energy Characteristics at Operating Modes of Marine Diesel Engine
J. Mar. Sci. Eng. 2021, 9(10), 1049; https://doi.org/10.3390/jmse9101049 - 23 Sep 2021
Viewed by 669
Abstract
The publication examines one of the most effective ways to decarbonize marine transport, specifically the secondary heat sources utilization in the cogeneration cycle of the main engines. The research focuses on the optimization of Organic Rankine Cycle (ORC) performance parameters by combining them [...] Read more.
The publication examines one of the most effective ways to decarbonize marine transport, specifically the secondary heat sources utilization in the cogeneration cycle of the main engines. The research focuses on the optimization of Organic Rankine Cycle (ORC) performance parameters by combining them with the exhaust energy potential of a medium speed four-stroke main diesel engine in ISO8178 (E3) load cycle modes. Significant advantages were not found between the evaluated Wet-, Isentropic-, and Dry-type liquids (R134a, R141b, R142b, R245fa, Isopentane) in terms of ORC energy performance with a 10% difference. The use of a variable geometry turbogenerator turbine with Dry-type (R134a) working fluid is characterized by the highest ORC energy efficiency up to 15% and an increase in power plant (including turbogenerator generated mechanical) by 6.2%. For a fixed geometry turbine, a rational control strategy of the working fluid flow (Gd.skπT) is determined by the priorities of the power plant in certain load modes. The influence of the overboard water temperature on the ORC energy indicators does not exceed ±1%; however, it influences the thermodynamic saturation parameters of the working fluid condensation and, in connection with that, the fluid selection. Full article
(This article belongs to the Special Issue Decarbonization of Ship Power Plants)
Show Figures

Figure 1

Article
The Influence of Port Tugs on Improving the Navigational Safety of the Port
J. Mar. Sci. Eng. 2021, 9(3), 342; https://doi.org/10.3390/jmse9030342 - 20 Mar 2021
Cited by 6 | Viewed by 1023
Abstract
Port tugs are an important element in port activity and navigational safety issues. Port tugs ensure the safety of big ships while they are entering, manoeuvring, mooring and unmooring, and are of huge importance during other port operations. At the same time, optimizing [...] Read more.
Port tugs are an important element in port activity and navigational safety issues. Port tugs ensure the safety of big ships while they are entering, manoeuvring, mooring and unmooring, and are of huge importance during other port operations. At the same time, optimizing the number of port tugs and tug bollard pull is also important from a port navigational safety and economic point of view. Calculation and evaluation methods of the optimal request for tugs bollard pull, in particular, port operations, are very important in order to guarantee the navigational safety of the port and ships during the main ship operations in the port. This article provides the number of requested port tugs and bollard pull calculation and evaluation methods on the basis of forces and moments acting on ships. On the basis of real ship voyages and manoeuvring at ports data as well as high accuracy simulators, theoretical methods were used, which were followed by our conclusions and recommendations, which can be used by port harbour masters and tug companies. Modern tugs have become an important element and integral part of modern port navigational safety. Such modern port tugs are also used for navigational safety and other important port functions and activities, such as fire protection and search and rescue operations. The optimal number and capacity evaluation of port tugs depending on port capacity and conditions are studied in this article. Full article
(This article belongs to the Special Issue Decarbonization of Ship Power Plants)
Show Figures

Figure 1

Back to TopTop