Download or read book INVESTIGATION ON FUEL SAVING TECHNIQUES FOR PROPULSION OF OCEAN GOING VESSELS written by A. S. Perumal and published by A.S.Perumal. This book was released on 2023-08-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The requirement of eco-friendly ships for future needs is increasing day by day to reduce the fuel consumption. The present scenario of fuel prices has forced the ship owners to reduce the fuel consumption in their ships. Newly built ships are designed for service conditions other than the traditional method of designing for one speed condition. Reduction of fuel consumption for existing ships can either be done by improving the ship performance based on performance monitoring or through retro-fitting of the hull or adding energy saving devices. 1.2 Scope &Objective To carry out a detailed study of fuel economy on ocean going ships by conservation measures and reduction of fuel consumption by optimal ship design with aid of the followings a) Fitting Kites as a propulsion device b) Introducing tunnel thrusters in ship c) Sail Assistance for propulsion d) Reducing aerodynamic resistance e) Weight saving technologies f) Using bio films to reduce bio fouling g) Hull resistance reduction methods 1.3 Present fuel scenario In the last five years the transport industry has experienced a five to eight fold increase in the price of fuel for marine and inland shipping (i.e. as a result of a price increase in crude oil from $20 to $140 per barrel). This causes a major "dislocation" for industry that may significantly impact the current distribution pattern of goods and services. In the year 2000 fuel represented only 20 percent of transport operating costs, recently at $140 per barrel it represents over 50 percent and were the oil price to rise to $200 a barrel, it would be over 70 percent of operating cost. Transport prices have risen by nearly 100 percent between 2002 and 2008, and could increase by almost another 300 percent if oil prices increase to $200 per barrel. A one-dollar rise in world oil price leads to a 1 percent rise in trade transport costs. In terms of the marine and inland transport movement of a 40-foot container from Shanghai to Columbus, Ohio, the total transport cost was $3,000 when oil prices were $20 per barrel in the year 2000. Today at $140 per barrel, the cost is $8,000, and should oil prices rise to $200 per barrel transport cost would rise to $15,000 per FEU (Forty equivalent units
Download or read book Ship Resistance and Propulsion written by Anthony F. Molland and published by Cambridge University Press. This book was released on 2011-08-08 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ship Resistance and Propulsion provides a comprehensive approach to evaluating ship resistance and propulsion. Informed by applied research, including experimental and CFD techniques, this book provides guidance for the practical estimation of ship propulsive power for a range of ship types. Published standard series data for hull resistance and propeller performance enables practitioners to make ship power predictions based on material and data contained within the book. Fully worked examples illustrate applications of the data and powering methodologies; these include cargo and container ships, tankers and bulk carriers, ferries, warships, patrol craft, work boats, planing craft and yachts. The book is aimed at a broad readership including practising naval architects and marine engineers, seagoing officers, small craft designers, undergraduate and postgraduate students. Also useful for those involved in transportation, transport efficiency and ecologistics who need to carry out reliable estimates of ship power requirements.
Download or read book Sustainable Shipping written by Harilaos N. Psaraftis and published by Springer. This book was released on 2019-02-11 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: International shipping is currently at a crossroads. The decision of the International Maritime Organization (IMO) in April 2018 to adopt an Initial Strategy so as to achieve by 2050 a reduction of at least 50% in maritime greenhouse gas (GHG) emissions vis-à-vis 2008 levels epitomizes the last among a series of recent developments as regards sustainable shipping. It also sets the scene on what may happen in the future. Even though many experts and industry circles believe that the IMO decision is in line with the COP21 climate change agreement in Paris in 2015, others disagree, either on the ground that the target is not ambitious enough, or on the ground that no clear pathway to reach the target is currently visible. This book takes a cross-disciplinary view of the various dimensions of the maritime transportation sustainability problem. “Cross-disciplinary” means that a variety of angles are used to examine the book topics, and these mainly include the technological angle, the economics angle, the logistics angle, and the environmental angle. The book reviews models that can be used to evaluate decisions, policy alternatives and trade-offs. For sustainable shipping, a spectrum of technical, logistics-based and market based measures are being contemplated. All may have important side-effects as regards the economics and logistics of the maritime supply chain, including ports and hinterland connections. The objective to attain an acceptable environmental performance, while at the same time respecting traditional economic performance criteria so that shipping remains viable, is and is likely to be a central goal for both industry and policy-makers in the years ahead. At the same time, policy fragmentation is likely to create distortions of competition and sub-optimal solutions. This book attempts to address these issues and identify better solutions. /divSustainable Shipping: A Cross-Disciplinary View includes chapters that cover many relevant topics. These include a general view of maritime transport sustainability, green ship technologies, information and communication technologies (ICTs) for sustainable shipping, green tramp ship routing and scheduling, green liner network design and speed optimization. Market based measures, oil pollution, ship recycling, sulphur emissions, ballast water management, alternative fuels and green ports are also covered. The book concludes by discussing prospects for the future, with a focus on the IMO Initial Strategy. "This book contains a unique wealth of information on sustainable shipping. The knowledge it provides is rigorous, complete, and well supported by statistics, technical reports, and scientific references. The treatment of the various topics is not only informative but also analytical and critical." —Gilbert Laporte, Maritime Economics & Logistics (12 May, 2020)
Download or read book Ship Resistance and Propulsion written by Anthony F. Molland and published by . This book was released on 2014-05-14 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ship Resistance and Propulsion is dedicated to providing a comprehensive and modern scientific approach to evaluating ship resistance and propulsion. The study of the propulsive power enables the size and mass of the propulsion engines to be established and estimates made of the fuel consumption and likely operating costs. This book, written by experts in the field, includes the latest developments from applied research, including those in experimental and CFD techniques, and provides guidance for the practical estimation of ship propulsive power for a range of ship types. This text includes sufficient published standard series data for hull resistance and propeller performance to enable practitioners to make ship power predictions based on material and data contained within the book. A large number of fully worked examples are included to illustrate applications of the data and powering methodologies; these include cargo and container ships, tankers and bulk carriers, ferries, warships, patrol craft, work boats, planing craft and yachts. The book is aimed at a broad readership including practising naval architects and marine engineers, sea-going officers, small craft designers, undergraduate and postgraduate degree students. It should also appeal to others involved in transportation, transport efficiency and eco-logistics who need to carry out reliable estimates of ship power requirements.
Download or read book Energy Efficient Hydrodynamic Design of Ships for Inland Waterways of Bangladesh based on Fuel Consumption and Emission Control written by S. M. Rashidul Hasan and published by GRIN Verlag. This book was released on 2022-10-14 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2022 in the subject Engineering - Naval Engineering, Ocean Engineering, , language: English, abstract: It has been observed that direct use of the Energy Efficiency Design Index (EEDI) by the International Maritime Organization (IMO) formulation for the inland ships will not provide the correct result. The prime reason is the effect of shallow water on the ship resistance. In addition to that, cargo availability and fuel quality issues for the inland vessels of Bangladesh forbid the use of IMO guidelines. Again, a generalized formulation is not possible for inland ships. Therefore, the EEDI formulation needs to be modified to be useful for an individual country. To find out the necessary modification of EEDI by IMO to be useful for inland ships of Bangladesh, several field visits, investigations, and laboratory tests have been conducted. The results of these visits, investigations and tests have been used to quantify the hydrodynamic effect of shallow water on ship resistance, actual average operational condition, cargo availability and actual carbon content in fuel. These corrections have been integrated with EEDI by IMO which has been used for the inland ships of Bangladesh. To quantify and set up the CO2 emission level of the Inland Maritime sector of Bangladesh, verified ship data and operational profiles are necessary. Using a good number of verified inland ship data, EEDI baselines for Bangladeshi inland cargo, oil tanker and passenger ships were established. These baselines are one of the first steps in the world for inland ships using verified ship data and are termed as EEDIBD. A ship design method that will ensure the reduction of CO2 emission, sensitivity analysis has been carried out. Three existing ships (cargo, oil tanker and passenger) of Bangladesh have been analysed and EEDIBD was calculated. To do that IMO provides several guidelines, which are most appropriate for seagoing ships. To assess the possibility of CO2 emission reduction, a sensitivity analysis was carried out on the inland ship design parameters of Bangladesh. The outcome of the sensitivity analysis is a set of inland ship design suggestions that will lower the EEDIBD value from the current stage. These ship design suggestions have been implemented on three existing inland ships. These existing ships resistance have been examined using Computational Fluid Dynamics (CFD). Those ships’ designs have been improved based on the ship design suggestions. It has been found that remodelled ship designs have 10-15% less resistance in comparison with the parent hull.
Download or read book Ship Resistance written by H. E. Guldhammer and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Potential Fuel Savings for Marine Diesel CPP Propulsion Systems written by Labros Bakountouzis (N.) and published by . This book was released on 1985 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1985 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Lubricated and Air Cavity Ships written by Gennadiy Alexeevitch Pavlov and published by Springer Nature. This book was released on 2020-03-28 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air Lubrication and Air Cavity Technology is a major development that has emerged in recent years as a means to reduce resistance and powering for many types of ships, and an efficient design for high speed marine vessels. This book introduces the mechanisms for boundary layer drag reduction and concepts studied in early research work. Air bubble and sheet lubrication for displacement vessels is outlined and the key projects introduced. Generation of low volume flow air cavities under the hull of displacement, semi displacement and planing vessels are introduced together with theoretical and empirical analysis and design methods. Resistance reduction, power reduction and fuel efficiency are covered for both displacement and high speed vessels. Air layer and air cavity effects on vessel static and dynamic stability are covered, linked to regulatory requirements such as IMO. Seaway motions and reduced impact load of high speed craft in waves are discussed including model test results. Integration of propulsion systems for optimum powering is summarized. A design proposal for a wave piercing air cavity craft is included in an appendix. A comprehensive listing of document resources and internet locations is provided for further research.
Download or read book Development of an Intelligent Tool for Energy Efficient and Low Environment Impact Shipping written by Wei Shao and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ship weather routing was first developed for determining the minimum time of a voyage. However, after 90's, driven by the increasing oil price and the environmental considerations, most shipping companies have began to show more and more interest in minimising fuel consumption in a route, in the meantime, maintaining a certain time schedule which is specified in the chartering contract of a merchant vessel. This topic is the focus of this thesis. A novel three dimensional dynamic programming method (3DDP) has been developed in this research to determine the optimised ship course and its corresponding engine power for minimum fuel consumption. During the optimisation process, Kwon's method as a new empirical formula is used to calculate ship speed in different weather conditions and an IMO guideline is applied to ensure ship safety during a voyage. In addition to the 3DDP method developed, three multi-objective evolutionary algorithms (MOEAs) are also proposed to treat weather routing as a multi-objective and constrained optimisation problem. Based on ship hydrodynamic knowledge and optimisation algorithms an Intelligent Tool for Energy Efficient and low environment impact Shipping (ITEES) has been developed. ITEES is established by using the object-oriented software development theory, consisting of several independent functional modules. The OPeNDAP as an advanced communication technique is employed by ITEES for downloading deterministic weather forecast at no cost. Case studies are given in Chapter 8 of this thesis to evaluate the performance of the 3DDP method in a comparison with other different optimisation algorithms under different weather conditions. A 54,000 DWT container ship is used as the case ship. The case studies have demonstrated that, in medium sea condition, different route optimisation methods offer the similar results that the shortest route with a constant engine power brings the lowest fuel consumption. However, the results of different route optimisation methods vary significantly in rough sea states. Optimised results Abstract Wei Shao, University of Strathclyde, Dec, 2012 Page II are not only just for fuel saving but also, most importantly, for ensuring ship safety during a voyage. Among the optimisation algorithms evaluated by the research, the 3DDP used in ITEES is able to give a better performance for fuel saving than other methods. In addition, it has the characteristics of using straight forward theory and less parameter settings compared with MOEAs that make the ITEES programme easy and convenient for operators to use.
Download or read book Practical Ship Hydrodynamics written by Volker Bertram and published by Elsevier. This book was released on 2011-09-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Ship Hydrodynamics, Second Edition, introduces the reader to modern ship hydrodynamics. It describes experimental and numerical methods for ship resistance and propulsion, maneuvering, seakeeping, hydrodynamic aspects of ship vibrations, and hydrodynamic options for fuel efficiency, as well as new developments in computational methods and model testing techniques relating to marine design and development.Organized into six chapters, the book begins with an overview of problems and approaches, including the basics of modeling and full-scale testing, prediction of ship hydrodynamic performance, and viscous flow computations. It proceeds with a discussion of the marine applications of computational fluid dynamics and boundary element methods, factors affecting ship hydrodynamics, and simple design estimates of hydrodynamic quantities such as resistance and wake fraction. Seakeeping of ships is investigated with respect to issues such as maximum speed in a seaway, route optimization (routing), structural design of the ship with respect to loads in seaways, and habitation comfort and safety of people on board. Exercises and solutions, formula derivations, and texts are included to support teaching or self-studies.This book is suitable for marine engineering students in design and hydrodynamics courses, professors teaching a course in general fluid dynamics, practicing marine engineers and naval architects, and consulting marine engineers. - Combines otherwise disparate information on the factors affecting ship hydrodynamics into one practical, go-to resource for successful design, development and construction. - Updated throughout to cover the developments in computational methods and modeling techniques since the first edition published more than 10 years ago. - New chapters on hydrodynamic aspects of ship vibrations and hydrodynamic options for fuel efficiency, and increased coverage of simple design estimates of hydrodynamic quantities such as resistance and wake fraction. - Companion site featuring exercises and solutions, formula derivations and texts: http://booksite.elsevier.com/9780080971506/
Download or read book Miscellaneous Problems in Maritime Navigation Transport and Shipping written by Adam Weintrit and published by CRC Press. This book was released on 2011-06-07 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The TransNav 2011 Symposium held at the Gdynia Maritime University, Poland in June 2011 has brought together a wide range of participants from all over the world. The program has offered a variety of contributions, allowing to look at many aspects of the navigational safety from various different points of view. Topics presented and discussed at the Symposium were: navigation, safety at sea, sea transportation, education of navigators and simulator-based training, sea traffic engineering, ship's manoeuvrability, integrated systems, electronic charts systems, satellite, radio-navigation and anti-collision systems and many others. This book is part of a series of six volumes and provides an overview of Problems in Maritime Navigation, Transport and Shipping and is addressed to scientists and professionals involved in research and development of navigation, safety of navigation and sea transportation.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by United States. Merchant Marine Council and published by . This book was released on 1957 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Navigation and Safety of Sea Transportation written by Adam Weintrit and published by CRC Press. This book was released on 2013-06-04 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The TransNav 2013 Symposium held at the Gdynia Maritime University, Poland in June 2013 has brought together a wide range of participants from all over the world. The program has offered a variety of contributions, allowing to look at many aspects of the navigational safety from various different points of view. Topics presented and discussed at the Symposium were: navigation, safety at sea, sea transportation, education of navigators and simulator-based training, sea traffic engineering, ship's manoeuvrability, integrated systems, electronic charts systems, satellite, radio-navigation and anti-collision systems and many others. This book is part of a series of four volumes and provides an overview of Transport and Shipping and is addressed to scientists and professionals involved in research and development of navigation, safety of navigation and sea transportation.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1976-05 with total page 1406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
