Published in the journal Electrotechnic and Computer Systems No (original) (raw)
The development of the energy sector in the shipbuilding industry is crucial to sustainable energy development in general, and includes reviews and reforms of investment, the creation of the reliable source of electric power and the optimization of operating conditions by means of scientific and containing approaches in competitive requests. In the article the problem of modernization of ship electric power systems as elements of ship power plants combined (hybrid) propulsion systems in order to save fuel and service life of diesel generators are considered. For the first time addressed the prospects for the use of double-layer electrochemical capacitors (EDLC), as secondary, and accidental marine energy sources, with the possibility of partial compensation for the lack of power, as well as future promising areas of modeling, optimization and quality improvements in ship power systems in terms of their resistance to changing operating conditions. Based on preliminary calculations determined by the estimated cost of such systems, identified regulatory issues that need to be addressed in the future. According to some estimates, aspects such as the absence of effective methods of research, lack of time for rapid inspection of newly built vessels, the lack of means to accurately predict the use of alternative energy sources, depending on the speed of movement of the vessel and operating conditions, the estimated risk of non-objective assessments of energy efficiency and the absence of systemic technical conditions play the significant role in increasing the relevance of the alleged studies.
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Modernization of hybrid electric-power system for combined Propulsion complexes
The development of the energy sector in the shipbuilding industry is crucial to sustainable energy development in general, and includes reviews and reforms of investment, the creation of the reliable source of electric power and the optimization of operating conditions by means of scientific and containing approaches in competitive requests. In the article the problem of modernization of ship electric power systems as elements of ship power plants combined (hybrid) propulsion systems in order to save fuel and service life of diesel generators are considered. For the first time addressed the prospects for the use of double-layer electrochemical capacitors (EDLC), as secondary, and accidental marine energy sources, with the possibility of partial compensation for the lack of power, as well as future promising areas of modeling, optimization and quality improvements in ship power systems in terms of their resistance to changing operating conditions. Based on preliminary calculations determined by the estimated cost of such systems, identified regulatory issues that need to be addressed in the future. According to some estimates, aspects such as the absence of effective methods of research, lack of time for rapid inspection of newly built vessels, the lack of means to accurately predict the use of alternative energy sources, depending on the speed of movement of the vessel and operating conditions, the estimated risk of non-objective assessments of energy efficiency and the absence of systemic technical conditions play the significant role in increasing the relevance of the alleged studies.
RATIONALE FOR THE NEED TO USE ADDITIONAL ENERGY SOURCES IN SHIP ELECTRIC
2020
The paper shows that the existing ship power systems operate in a dynamic mode. Loads are random. Examples of accidental loads on the ship's power system are given. It is shown that ships need to improve energy systems. An effective way to increase the efficiency of energy systems is to install an additional source of electricity. Keywords: diesel generator, energy source, load.
Ciencia y tecnología de buques
There is currently a growing concern in the shipping industry about energy consumption and environmental impacts. According to the International Maritime Organization's (IMO) energy efficiency guidelines, today's ships must have an energy efficiency management plan to reduce the CO2 emission and other pollutants. In this article, a bibliographic review of methodologies for the optimization of energy consumption on ships is carried out, starting from the identification of sources of energy losses, to the implementation of technical and operational measures that contribute to their improvement, making a qualitative evaluation of the identified methodologies. Sources of energy losses associated with equipment and auxiliary systems are analyzed, as well as opportunities for improvement in the use of electrical energy through the implementation of intelligent energy management systems, high efficiency motors, and lighting. The technical and operational energy efficiency measures ...
Power plant-related Measures for Improving Energy Efficiency in Ships.pdf
2015
At present, the shipping industry is facing two major challenges: the unstable prices of fuel oil and the tightening of international regulations on pollution and CO2 emissions. Despite the fact that marine transportation is more energy efficient as compared to land and air transportation, there is still room for improvement. These challenges can be met by reducing fuel consumption or by using alternative eco-friendly energy sources. There is a great number of technical and operational solutions to meet these challenges, which can be applied to both newly constructed and existing vessels. Due to the great range of available energy-efficiency solutions, the current paper focuses on the measures related to the power plant of a ship. As such, the measures analyzed can be divided into two main groups, beginning with diesel engines and other auxiliary machinery, such as waste heat recovery systems. Secondly, the fuels used by these engines as well as the various alternatives that can be used to power a ship are also explored. Some of these fuels, although not more economical than conventional ones, have a significantly lower pollution impact and future potential, and are thus examined as well.
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This paper deals with the application of integrated power systems in small passenger ships. Namely, integrated power systems were up to now mostly used in naval and large passenger ships, primarily for financial reasons. However, despite their complexity, such systems allow for much more versatility and their application in small passenger ships seems to be advisable in the context of environmental issues. Environmental aspects of maritime transportation are discussed, the needs for environmentally-friendly ships in the Adriatic Sea are elaborated and a review of actual IMO Regulations is provided, pointing out the effects of introducing new fuel-efficient and electrified ships. Different power systems of a ferry operating in the Adriatic Sea are analyzed in detail, with particular emphasis on gas emissions. Direct mechanical propulsion system and integrated power system in real operating conditions are considered and some advantages and drawbacks of both are examined. Finally, disc...
IEEE Electric Ship Technologies Initiative
IEEE Industry Applications Magazine, 2000
Electric Ship Technologies identified by the IEEE Technical Activities Board (TAB) as one of the 10 emerging technological challenges that cut across the fields of multiple IEEE societies as well as engineering societies outside IEEE. The goal of this integrated initiative is to enhance technological advances utilization for all related applications by combining advanced research & development accomplishments in universities and research laboratories with well established engineering practices and industrial standards. As implementation of this initiative; the bi-annual Electric Ship Technologies Symposium was established as the permanent forum to bring together the knowledge of the entire scientific and technical community working in the field .for the exchange of broad spectrum of view points (end users, designers, manufacturers, etc,)
Increasing ship energy efficiency and emission reduction with dieselelectric propulsion system
World Journal of Environmental Research
Today, the goal of reducing fossil fuel consumption and increasing the use of renewable energy is one of the most important issues in the maritime field. Regulations created by IMO in order to prevent environmental and air pollution in the maritime field have increased its effect day by day and made it necessary to move away from conventional systems and turn to alternative systems. Although studies in the area of using fully electric marine vehicles or using fully renewable energy systems are also ongoing, they are not preferred due to the high costs and lack of sustainability. While the use of Diesel Electric (DE) Propulsion System in marine vehicles is one of the alternatives in this field, it may be the most efficient choice with the improvements made on this system. The aim of this study is to examine the increase in ship energy efficiency using dieselelectric propulsion systems rather than the original ferry system.In the study, the historical development of the DE Propulsion System was investigated and other studies on the subject were examined. Detailed navigation data of a ferry using fossil fuels in the Gulf of Izmir were recorded, and a case study was carried out to examine the status of this ship's DE Propulsion System by using data such as engine load and fuel consumption. According to the results obtained, it has been revealed that using the DE Propulsion System can be much more efficient in terms of fuel consumption and emissions. It has been observed that the system provides benefits in terms of reliability and reduction of noise pollution. For future studies, it may be aimed to provide the ferry to be charged from the port and to increase the benefits of the system by using renewable energy.
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