Review of ship energy efficiency

MONTES, JULIO BARREIRO; Zaragoza, Sonia; Díaz-Casás, Vicente

doi:10.1016/j.oceaneng.2022.111594

Cited by 51 publications

(13 citation statements)

References 36 publications

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“…3, we can conclude that by using this approach, the survey of 16 sensors at a remote location of engine room occurred with losses in optical fiber of 0.2•10 -3 dB/m with a reflectivity of 99 %. With a channel power of −10 dB/m, assuming the worst-case scenario with the highest vibration coefficient near the main engine, such losses are not significant and lie within the measurement error [30][31][32][33][34][35].…”

Section: Discussion Of Results Of Investigating a New Circuitry Solut...mentioning

confidence: 81%

Improving tools for diagnosing technical condition of ship electric power installations

Sandler

Budashko

2022

EEJET

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Existing information-measuring systems (IMS) do not fully correspond to the tasks of monitoring electric power installations (EPI) in terms of their characteristics. The capabilities of IMS have certain limitations regarding the probability of measurement results and the degree of invariance to the influence of operational factors. This proves that for modern failure-free EPI technical operation, new diagnostic tools are in demand. Such means should be seamlessly integrated in IMS to enable high operational efficiency and performance reliability. Therefore, it is of particular relevance to tackle the scientific and technical issue of rational combination of protection and preservation of the characteristics of fiber-optic sensors of relative humidity control systems in ship EPI. To solve the problem, the chosen object of this study is the processes of formation and transformation of the diagnostic signal in the means of humidity control. It has been established that the improvement of the characteristics of the control means can be achieved through the synthesis of known optical circuits and the latest materials. To register the parameters of relative humidity, a new circuitry solution was proposed for the sensor based on fiber-optic and elements made of nanomaterials. The main feature of the proposed monitoring tool is invariance to operational destabilizing factors. The scope of application of the obtained research results involves distributed fiber-optic systems for monitoring the technical condition of ship electric power systems. The introduction of a new means for measuring humidity will make it possible to achieve an increase in the efficiency of use and reliability of EPI by reducing the accident rate by 6...11 %, as well as a decrease in operating costs by USD 8...10 per 1 kWh of generated power per year of operation with an average load

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Section: Discussion Of Results Of Investigating a New Circuitry Solut...mentioning

confidence: 81%

Improving tools for diagnosing technical condition of ship electric power installations

Sandler

Budashko

2022

EEJET

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“…The necessity for internationally binding environmental agreements was recognized through various milestones, including the Declaration of the United Nations Conference on the Human Environment in 1972, the Convention on Long-range Transboundary Air Pollution in Geneva in 1979, the Basel Convention on the Control of Transboundary movements of Hazardous Wastes in 1992, and the United Nations Framework Convention on Climate Change (UNFCCC) in 1992 [19]. In relation to the transnationality and transboundary nature of air pollution from ships, which is a key source theory for this study, the adoption of SEEMP was extended to all ships engaged in international navigation at the 62nd session of the MEPC in 2011, following the amendment of Annex VI of MARPOL 73/78 to regulate GHG emissions from ships [20].…”

Section: Theory Of Air Pollution Regulation Based On Transnationality...mentioning

confidence: 99%

Strategic Pathways to Decarbonization: Socio-Technical System Innovations for Green Shipping Compliance with IMO 2050 Targets

Lee,

Sim,

Kim

et al. 2024

Preprint

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This study investigates the transition to sustainable shipping industry within the framework of the IMO's 2050 carbon neutrality objective, focusing on socio-technical systems analysis. The research delves into the sustainable paradigm shift towards alternative marine fuels such as LNG, methanol, ammonia, and hydrogen from a socio-technical transition perspective, analyzing the multi-level per-spective challenges and opportunities. Specifically, it scrutinizes the implications of adopting these al-ternative fuels for global shipping, identifying technical uncertainties, financial constraints, and infra-structure needs. Through a comprehensive review of existing literature on ship emissions and alterna-tive fuels, coupled with socio-technical transition theory, the study addresses the multifaceted chal-lenges and opportunities in meeting the IMO's environmental objectives. It emphasizes the necessity of collaborative governance, innovative niche strategies, and a holistic approach to leverage the current window of opportunity in facilitating the maritime industry's transition to sustainable fuel options. Fi-nally, this research enhances our understanding of the intricate interplay between technological, social, industrial, and cultural dynamics in the greening of shipping and offers insights into the strategic adop-tion of environmentally friendly marine fuels for a sustainable future.

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“…Marine transportation is an essential component of global trade and commerce, connecting markets and consumers across continents and oceans [1][2][3][4]. From raw materials to finished goods, ships transport over 80% of the world's goods, making them a critical part of the global economy.…”

Section: Introductionmentioning

confidence: 99%

Design of a reliable and coordinated protection strategy for zonal shipboard power systems

Mohammadzamani,

Sadeghkhani,

Moazzami

2023

IET Electrical Syst in Trans

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The reliable performance of the shipboard power system (SPS) is essential for the safe and efficient operation of marine vessels. SPSs are subject to various types of electrical faults that can cause equipment failure, system downtime, and even catastrophic events. One effective way to provide redundancy and fault tolerance in the event of a fault or failure is through the use of zonal configuration. However, the protection of such systems is a challenging task due to their complex topology and the potential for multiple sources of fault. Therefore, it is imperative to protect the SPS with zonal configuration from various types of fault to ensure its continuous operation. This article presents a comprehensive coordinated protection strategy for a hybrid AC/DC SPS with the zonal configuration by using the available protective equipment. The proposed strategy consists of fault current limiting, grounding, fault detection, and faulty section isolation, and provides both primary and backup protections for all SPS equipment, including generator, busbar, line, input and output feeders, loads, propulsion motors, and DC system. Also, it does not require a comprehensive communication infrastructure and training dataset. The selective and reliable performance of the proposed protection strategy is verified through several case studies under various fault scenarios in the ETAP environment. The article provides valuable insights into the selection and implementation of appropriate protection measures for the SPS with ring configuration which are useful for the designers, operators, and maintenance personnel, improving the reliability and safety of these critical and autonomous systems.

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Review of ship energy efficiency

Cited by 51 publications

References 36 publications

Improving tools for diagnosing technical condition of ship electric power installations

Improving tools for diagnosing technical condition of ship electric power installations

Strategic Pathways to Decarbonization: Socio-Technical System Innovations for Green Shipping Compliance with IMO 2050 Targets

Design of a reliable and coordinated protection strategy for zonal shipboard power systems

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