Comparative Analysis of CO2 Emissions, Fuel Consumption, and Fuel Costs of Diesel and Hybrid Dredger Ship Engines

Journal of Marine Science and Engineering, Год журнала: 2024, Номер 12(6), С. 999 - 999

Опубликована: Июнь 15, 2024

There is a consensus on the need to reduce emissions of carbon compounds. The increase in global greenhouse gas (GHG) maritime industry poses serious challenge environmental sustainability, climate change, and operating costs ships. This article shows how hybrid versus diesel propulsion technology for ships can help dioxide (CO2) fuel consumption, these changes be achieved. exhaust increasing shipping seek alternative fuels means that existing regulations marine engines engine are being updated almost constantly new formulated. cost implications may lead an as with lower consumption chosen, i.e., larger engines. Alternative approaches needed CO2 which could ultimately paper examines current state by analyzing two same type similar technical technological characteristics different systems gain insight into problem. compares reductions emissions, suction hopper dredgers standard propulsion. characteristics, price were analyzed determine advantages disadvantages each system. novelty this study from company technical–technological but used case mathematical procedure calculating other gasses was presented comparison, all what extent way system ship contribute at levels compared comparative analysis much savings expected when using Finally, conclusion drawn efficiency compatibility systems.

Язык: Английский

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A comprehensive feasibility analysis of dual-fuel engines and solid oxide fuel cells on a tanker ship considering environmental, economic, and regulation aspects

Sustainable Production and Consumption, Год журнала: 2023, Номер 42, С. 106 - 124

Опубликована: Сен. 25, 2023

Язык: Английский

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Design of alternative power systems for ferries operating in the Adriatic Sea

Ocean Engineering, Год журнала: 2025, Номер 319, С. 120246 - 120246

Опубликована: Янв. 2, 2025

Язык: Английский

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Decarbonization pathways for bulk vessels: Integrating power systems, fuels, and control measures

Ocean Engineering, Год журнала: 2024, Номер 300, С. 117488 - 117488

Опубликована: Март 16, 2024

Язык: Английский

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Optimal Ship Deployment and Sailing Speed under Alternative Fuels

Journal of Marine Science and Engineering, Год журнала: 2023, Номер 11(9), С. 1809 - 1809

Опубликована: Сен. 16, 2023

The European Union (EU) has implemented a sub-quota of 2% for renewable marine fuels to be utilized by vessels operating within its jurisdiction, effective starting from 2034. This progressive policy signifies significant leap towards reducing carbon emissions and promoting sustainable development. However, it also presents notable challenges shipping companies, particularly in terms fuel costs. In order support companies devising optimal strategies the framework this new policy, study proposes mixed-integer linear programming model. model aims determine decisions choice, sailing speed number on various routes. Furthermore, we showcase adaptability our response fluctuations prices, relevant vessel costs, total fleet size vessels. Through innovative insights, research provides invaluable guidance decision-making processes under EU enabling them minimize their costs effectively.

Язык: Английский

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Effects of transportation of electric vehicles by a RoPax ship on carbon intensity and energy efficiency

Sustainable Energy Technologies and Assessments, Год журнала: 2025, Номер 75, С. 104238 - 104238

Опубликована: Фев. 12, 2025

Язык: Английский

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Energy Saving Potential of Hybrid Propulsion System for Fishing Vessels in Indonesia

E3S Web of Conferences, Год журнала: 2025, Номер 621, С. 03012 - 03012

Опубликована: Янв. 1, 2025

Indonesia, as the largest archipelagic country in world, has a fishing vessel fleet dominated by conventional diesel engine-based propulsion systems. The high use of fossil fuels on these vessels causes significant greenhouse gas emissions and unstable operating costs due to fluctuations fuel prices. This study explores potential for energy savings emission reductions from implementation hybrid systems Indonesia. Using literature analysis case studies, this compares efficiency, consumption, results show that system can reduce consumption up 29.4%, 25%, CO₂ 23% per trip compared vessels. A diesel-electric with renewable integration is optimal configuration small medium-scale provides recommendations ideal designs based operational characteristics, supports transition more environmentally friendly sustainable electricity technology Indonesian maritime sector.

Язык: Английский

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A comprehensive review of ship emission reduction technologies for sustainable maritime transport

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Март 24, 2025

In recent years, the International Maritime Organization (IMO) has set strict emission standards for shipping industry, which raised high demands ship reduction technologies. This review analyzes research status of technologies using bibliometric methods based on 714 publications from Social Science Citation Index (SSCI) and SCI-Expanded (SCIE) databases 2000 to 2024, use VOSviewer software visualization publications. It identifies key trends, productive entities contributors, hotspots in field. The core findings are that green power technologies, digital intelligence current focal points. Future should focus finding optimal solutions alternative marine fuels, clarifying low-carbon transformation pathways ships, promoting effective follow-up actions all relevant parties.

Язык: Английский

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Analyzing sectoral policies for deep decarbonization: the case of national freight transportation

Climate Policy, Год журнала: 2025, Номер unknown, С. 1 - 14

Опубликована: Апрель 8, 2025

Язык: Английский

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NSMO-Based Adaptive Finite-Time Command-Filtered Backstepping Speed Controller for New Energy Hybrid Ship PMSM Propulsion System

Journal of Marine Science and Engineering, Год журнала: 2025, Номер 13(5), С. 918 - 918

Опубликована: Май 7, 2025

In the context of new energy hybrid ship propulsion system (NE-HSPS), parameters rotor speed, torque, and current permanent magnet synchronous motor (PMSM) are susceptible to environmental variations unmodeled disturbances. Conventional nonlinear controllers (e.g., backstepping, PI, sliding mode) encounter challenges related response interference immunity, vibration jitter. These stem from inherent uncertainties in perturbations limitations traditional controllers. this paper, a novel Adaptive Finite-Time Command-Filtered Backstepping Controller (AFTCFBC) is proposed, featuring faster time elimination overshoot. The proposed controller significant advancement field, addressing computational complexity backstepping control reducing maximum steady-state error output. incorporates Nonlinear Command Filter (NFTCF) adapted variation speed. Secondly, Sliding Mode Observer (NSMO) based on designed mode gain function (φ(Sw)) estimate load disturbance electric system. Uncertainty Parameter-Adaptive law (UPAL) Lyapunov theory improve robust performance construction simulation model PMSM under four distinct working conditions, including constant speed lifting lowering loading unloading, white noise interference, presented. results study demonstrate reduction speed-tracking overshoot zero, substantial decrease integral squared by 90.15%, notable improvement 18.6%.

Язык: Английский

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