815 research outputs found

    Review of Ship Energy Efficiency

    Get PDF
    Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG[Abstract] Energy efficiency has become increasingly relevant in the current economic and environmental situations. This paper aims to create a map of the state of the art of the energy efficiency on the marine sector, both in the scale of the individual ships and the entire industry. The first point of interest will be an examination of the regulatory framework of the shipping sector in regards of energy efficiency. Next there are the procedures implemented on ships with the aim of diminishing their consumption and emissions. These measures range from modifications of the design to the operational practices. Following that will be the potential advances that the industry could implement on a bigger scale to enhance the efficiency of the whole sector. Finally, an overview of the main obstacles for the implementation of these measures will be examined. While the current standards are a temporary solution and several of the most prominent improvements require further investigation, the continuous effort increases the potential of this sector for optimization. These factors emphasize the utility of this review as an introduction to help other studies have a solid understanding of the state of the art of energy efficiency in the naval industry.Xunta de Galicia; ED481A 2021/312Xunta de Galicia; ED431C 2021/3

    Marine Transportation for CCS

    Get PDF
    Thesis (S.M. in Transportation)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.Cataloged from PDF version of thesis.Includes bibliographical references (p. 115-118).The objective of this report is to determine whether opportunities to use liquefied carbon dioxide carriers as part of a carbon capture and storage system will exist over the next twenty years. Factors that encourage or discourage the use of vessels are discussed. This study concludes that liquefied carbon dioxide carriers can potentially be used in both the near and long term under different sets of circumstances.by Mary-Irene Alexandrakis and Bret S. Smart.S.M.in Transportatio

    A study to estimate the benefits of removing market barriers in the shipping sector

    Get PDF
    This report presents the results from a study to estimate the benefits of removing market barriers in the shipping sector, including with the use of a transparent monitoring, reporting and verification (MRV) system. It has been commissioned by DG Climate Action in support of its work to assess potential revisions to the Regulation for the MRV of CO2 emissions from maritime transport (“the EU MRV Regulation”)

    Implementation and Development of Vehicle Tracking and Immobilization Technologies

    Get PDF
    Since the mid-1980s, limited use has been made of vehicle tracking using satellite communications to mitigate the security and safety risks created by the highway transportation of certain types of hazardous materials. However, vehicle-tracking technology applied to safety and security is increasingly being researched and piloted, and it has been the subject of several government reports and legislative mandates. At the same time, the motor carrier industry has been investing in and implementing vehicle tracking, for a number of reasons, particularly the increase in efficiency achieved through better management of both personnel (drivers) and assets (trucks or, as they are known, tractors; cargo loads; and trailers). While vehicle tracking and immobilization technologies can play a significant role in preventing truck-borne hazardous materials from being used as weapons against key targets, they are not a & ”silver bullet.” However, the experience of DTTS and the FMCSA and TSA pilot projects indicates that when these technologies are combined with other security measures, and when the information they provide is used in conjunction with information supplied outside of the tracking system, they can provide defensive value to any effort to protect assets from attacks using hazmat as a weapon. This report is a sister publication to MTI Report 09-03, Potential Terrorist Uses of Highway-Borne Hazardous Materials. That publication was created in response to the Department of Homeland Security´s request that the Mineta Transportation Institute´s National Transportation Security Center of Excellence provide research and insights regarding the security risks created by the highway transportation of hazardous materials

    Strategies for improving the competitiveness of the Korean shipbuilding industry : Case study of Hyundai Heavy Industries

    Get PDF
    Although external factors affect companies, companies need solutions to survive and sustain growth. However, the financial crisis of 2008 affected the Korean shipbuilding industry and companies recorded poor financial results. To solve this problem and increase the competitiveness of the Korean shipbuilding industry, it is necessary to find stabilizing suggestions and promising markets to diversify into. Therefore, this research is aimed at proposing suggestions for problem solving and new market development. To deeply look into this situation, a case study of a particular company will be undertaken. The target company is Hyundai Heavy Industries and its competitors are Samsung Heavy Industries and Daewoo Shipbuilding & Marine Engineering. The process involved four stages. The first stage where an external analysis were done for global, national and international regulation trends and the overall trends were extracted. The sectors where the trends were analyzed are green business, smart business and entertainment business. The second stage is an internal analysis which was achieved by examining the general background using a capability analyzing tool. In this stages seventeen resources with eight problems were found. Based on previous stages, in the third step, five problem-solving suggestions and nine take-off suggestions were proposed. The fourth step is suggestions adaptation for prioritization. To do this, all suggestions were listed and similar suggestions combined. The nine combined suggestions were assessed according to internal resources, external competition and needed time. Through this, high, medium and low level recommendations were given. High level recommendations are energy efficient vessel, advanced connected smart ship, B2C business, production costs and emotional approach. This will be followed by the ripple effect, where if the ideas are accepted, the company can solve encountered problems and create a new market. In addition, other Korean shipbuilding companies can also adopt the ideas or methodologies to increase competitiveness

    Review and analysis of fire and explosion accidents in maritime transportation

    Get PDF
    The globally expanding shipping industry has several hazards such as collision, capsizing, foundering, grounding, stranding, fire, and explosion. Accidents are often caused by more than one contributing factor through complex interaction. It is crucial to identify root causes and their interactions to prevent and understand such accidents. This study presents a detailed review and analysis of fire and explosion accidents that occurred in the maritimetransportation industry during 1990–2015. The underlying causes of fire and explosion accidents are identified and analysed. This study also reviewed potential preventative measures to prevent such accidents. Additionally, this study compares properties of alternative fuels and analyses their effectiveness in mitigating fire and explosionhazards. It is observed that Cryogenic Natural Gas (CrNG), Liquefied Natural Gas (LNG) and methanol have properties more suitable than traditional fuels in mitigating fire risk and appropriate management of their hazards could make them a safer option to traditional fuels. However, for commercial use at this stage, there exist several uncertainties due to inadequate studies, and technological immaturity. This study provides an insight into fire and explosion accident causation and prevention, including the prospect of using alternative fuels for mitigating fire and explosion risks in maritime transportation

    Large Deployable Reflector (LDR) system concept and technology definition study. Analysis of space station requirements for LDR

    Get PDF
    A study was conducted to determine how the Large Deployable Reflector (LDR) might benefit from the use of the space station for assembly, checkout, deployment, servicing, refurbishment, and technology development. Requirements that must be met by the space station to supply benefits for a selected scenario are summarized. Quantitative and qualitative data are supplied. Space station requirements for LDR which may be utilized by other missions are identified. A technology development mission for LDR is outlined and requirements summarized. A preliminary experiment plan is included. Space Station Data Base SAA 0020 and TDM 2411 are updated

    The ship-port interface safety management: case study of LNG ports and marine terminals in Algeria

    Get PDF

    Space Transportation Propulsion Technology Symposium. Volume 3: Panel Session Summaries and Presentations

    Get PDF
    The Space Transportation Propulsion Technology Symposium was held at the Pennsylvania State University on June 25 to 29, 1990. Emphasis was placed on propulsion requirements and initiatives to support current, next generation, and future space transportation systems, with the primary objectives of discerning whether proposed designs truly meet future transportation needs and identifying possible technology gaps, overlaps and other programmatic deficiencies. Key space transportation propulsion issues are addressed through four panels with government, industry, and academia membership. The panel focused on systems engineering and integration; development, manufacturing, and certification; operational efficiency; program development; and cultural issues
    corecore