Download or read book Propulsion Systems for Navy Ships and Submarines written by United States Government Accountability Office and published by Createspace Independent Publishing Platform. This book was released on 2018-06-16 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Propulsion Systems for Navy Ships and Submarines

Download or read book Navy Ship Propulsion written by United States. General Accounting Office and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Navy Ship Propulsion Technologies written by and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: General strategies for reducing the Navy's dependence on oil for its ships include reducing energy use on Navy ships; shifting to alternative hydrocarbon fuels; shifting to more reliance on nuclear propulsion; and using sail and solar power. Reducing energy use on Navy ships. A 2001 study concluded that fitting a Navy cruiser with more energy-efficient electrical equipment could reduce the ship's fuel use by 10% to 25%. The Navy has installed fuel-saving bulbous bows and stern flaps on many of its ships. Ship fuel use could be reduced by shifting to advanced turbine designs such as an intercooled recuperated (ICR) turbine. Shifting to integrated electric-drive propulsion can reduce a ship's fuel use by 10% to 25%; some Navy ships are to use integrated electric drive. Fuel cell technology, if successfully developed, could reduce Navy ship fuel use substantially. Alternative hydrocarbon fuels. Potential alternative hydrocarbon fuels for Navy ships include biodiesel and liquid hydrocarbon fuels made from coal using the Fischer-Tropsch (FT) process. A 2005 Naval Advisory Research (NRAC) study and a 2006 Air Force Scientific Advisory Board both discussed FT fuels. Nuclear propulsion. Oil-fueled ship types that might be shifted to nuclear propulsion include large-deck amphibious assault ships and large surface combatants (i.e., cruisers and destroyers). A 2005 "quick look" analysis by the Naval Nuclear Propulsion Program concluded that total life-cycle costs for nuclearpowered versions of these ships would equal those of oil-fueled versions when oil reaches about $70 and $178 per barrel, respectively. Sail and solar propulsion. Kite-assisted propulsion might be an option for reducing fuel use on Navy auxiliaries and DOD sealift ships. Two firms are now offering kite-assist systems to commercial ship operators. Solar power might offer some potential for augmenting other forms of shipboard power, perhaps particularly on Navy auxiliaries and DOD sealift ships. Legislative activity. Section 128 of the FY2007 defense authorization bill (H.R. 5122) states that "it is the sense of Congress that the Navy should make greater use of alternative technologies, including nuclear power, as a means of vessel propulsion for its future fleet of surface combatants." The Senate report (S.Rept. 109-292 of July 25, 2006) on the FY2007 defense appropriations bill (H.R. 5631) encourages DOD to continue exploring FT fuels and requires a report on synthetic fuels. Section 214 of the conference report (H.Rept. 109-413 of April 6, 2006) on the Coast Guard and Maritime Transportation Act of 2006 (H.R. 889) requires the Coast Guard to conduct a feasibility study on using biodiesel fuel in new and existing Coast Guard vehicles and vessels. Section 130 of the conference report (H.Rept. 109-360 of December 18, 2006) on the FY2006 defense authorization act (H.R. 1815, P.L. 109-163 of January 6, 2006) requires the Navy to submit a report by November 1, 2006, on alternative propulsion methods for surface combatants and amphibious warfare ships. This report will be updated as events warrant.

Download or read book Naval Engineering written by Dennis L. Richardson and published by AuthorHouse. This book was released on 2016-11-04 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naval Engineering: Principles and Theory of Gas Turbine Engines is a technical publication for professional engineers to assist in understanding the history and development of gas turbine engines including the thermodynamic processes known as the Brayton cycle. Common principles of various gas turbine nomenclatures, technical designs, applications, and performance conditions that affect the capabilities and limitations of marine operations are provided. It enables the ability to describe the principal components of gas turbines and their construction. This book will enable the reader to increase professional knowledge through the understanding of navy engineering principles and theory of gas turbine engines. The reader will learn the operation and maintenance of the gas turbine modules (GTMs), gas turbine generators (GTGs), reduction gears, and associated equipment such as pumps, valves, oil purifiers, heat exchangers, shafts, and shaft bearings. Inside this book, you will find technical information such as electronic control circuitry, interfaces such as signal conditioners, control consoles, and designated electrical equipment associated with shipboard propulsion and electrical powergenerating plants. When every detail of engineering work is performed with integrity and reliability, technical leadership know-how will improve.

Download or read book Naval Mechanical Engineering written by Tanya D. Zapata and published by AuthorHouse. This book was released on 2019-08-25 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naval Mechanical Engineering: Gas Turbine Propulsion, Auxiliary, and Engineering Support Systems is a technical publication for professional engineers to assist in understanding various ships auxiliary systems. You will learn how they are applied to the overall propulsion plant and how the pumps and valves are used in the systems. Since the auxiliary systems vary between ship types, you will learn the systems in general terms. The maintenance and upkeep of the auxiliary systems are extremely important since, without them, the main engines would not be able to operate. You will be presented with some of the various factors that affect gas turbine performance, procedures for engine changeout, and power train inspection. In conclusion, you will learn a few of the maintenance, operating problems, and repair of pneumatic systems, low-pressure air compressors (LPAC), hydraulic systems, pumps, valves, heat exchangers, and purifiers. Proper maintenance or repair work consists of problem diagnosis, disassembly, measurements, corrections of problems, and reassembly. Use of proper tools, knowledge of the construction of equipment, proper work site management, and cleanliness are keys to successful maintenance and repair work.

Download or read book Electric Drive Propulsion for U S Navy Ships written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Navy in January 2000 selected electric-drive propulsion technology for use on its planned next-generation DD-21 land-attack destroyer and is considering it for use on other kinds of Navy ships as well. Electric drive poses issues for Congress concerning its costs, benefits and risks, and how the technology should be integrated into the DD-21 program or other ship-acquisition programs. Several foreign countries are developing or using electric drive in commercial or naval ships. The U.S. Navy's electric-drive development effort centers on the Integrated Power System (IPS) program. Several private-sector firms in the United States are now pursuing electric drive for the U.S. Navy market. Electric drive offers significant anticipated benefits for U.S. Navy ships in terms of reducing ship life-cycle cost, increasing ship stealthiness, payload, survivability, and power available for non-propulsion uses, and taking advantage of a strong electrical power technological and industrial base. Potential disadvantages include higher nearterm costs, increased technical risk, increased system complexity, and less efficiency in full-power operations. The current scarcity of precise and systematic estimates of the costs and benefits of electric drive makes it difficult for policymakers to assess the relative cost-effectiveness of differing technical approaches to achieving electric drive. Some of the risks involved in developing electric-drive technology have been mitigated by the successful development of electric-drive technology for commercial ships; estimates of the amount of remaining risk vary. The Navy has stated that developing common electric-drive components is feasible for several kinds of Navy ships and that pursuing electric drive technology in the form of a common family of components could have advantages for the Navy. The potential savings associated with a common system are difficult to estimate, but could be substantial. The concept of developing a common system or family of components poses issues for policymakers concerning the extent of commonality across electric-drive-equipped Navy ships and the use of competition in the development and procurement of electric-drive technology. Much of the debate over electric drive concerns electric motors. The five basic types in question - synchronous motors, induction motors, permanent magnet motors, superconducting synchronous motors, and superconducting homopolar motors - differ in terms of their technological maturity, power-density, and potential applicability to different Navy ship types. The Navy's decision to use electric drive on the DD-21 raises several potential issues concerning the acquisition strategy for the ship. Electric drive could be installed on Virginia (SSN-774) class submarines procured in FY2010, according to the Navy. Other candidates for electric drive include the Navy's planned TADC(X) auxiliary dry cargo ships, the Navy's planned joint command and control (JCC[X]) ships, the second through fifth LHA replacement ships, future aircraft carriers, and possibly the new cutters to be procured under the Coast Guard Deepwater project.

Download or read book Nuclear Propulsion for Naval Surface Vessels written by United States. Congress. Joint Committee on Atomic Energy and published by . This book was released on 1964 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Navy Ship Propulsion written by United States. General Accounting Office and published by . This book was released on 1996 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technology for the United States Navy and Marine Corps 2000 2035 written by and published by National Academies. This book was released on 1997 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future national security environment will present the naval forces with operational challenges that can best be met through the development of military capabilities that effectively leverage rapidly advancing technologies in many areas. The panel envisions a world where the naval forces will perform missions in the future similar to those they have historically undertaken. These missions will continue to include sea control, deterrence, power projection, sea lift, and so on. The missions will be accomplished through the use of platforms (ships, submarines, aircraft, and spacecraft), weapons (guns, missiles, bombs, torpedoes, and information), manpower, materiel, tactics, and processes (acquisition, logistics, and so on.). Accordingly, the Panel on Technology attempted to identify those technologies that will be of greatest importance to the future operations of the naval forces and to project trends in their development out to the year 2035. The primary objective of the panel was to determine which are the most critical technologies for the Department of the Navy to pursue to ensure U.S. dominance in future naval operations and to determine the future trends in these technologies and their impact on Navy and Marine Corps superiority. A vision of future naval operations ensued from this effort. These technologies form the base from which products, platforms, weapons, and capabilities are built. By combining multiple technologies with their future attributes, new systems and subsystems can be envisioned. Technology for the United States Navy and Marine Corps, 2000-2035 Becoming a 21st-Century Force: Volume 2: Technology indentifies those technologies that are unique to the naval forces and whose development the Department of the Navy clearly must fund, as well as commercially dominated technologies that the panel believes the Navy and Marine Corps must learn to adapt as quickly as possible to naval applications. Since the development of many of the critical technologies is becoming global in nature, some consideration is given to foreign capabilities and trends as a way to assess potential adversaries' capabilities. Finally, the panel assessed the current state of the science and technology (S&T) establishment and processes within the Department of the Navy and makes recommendations that would improve the efficiency and effectiveness of this vital area. The panel's findings and recommendations are presented in this report.

Download or read book Integration of Energy Efficient Propulsion Systems for Future U S Navy Vessels written by United States. Congress. House. Committee on Armed Services. Projection Forces Subcommittee and published by . This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report Naval Ship Research and Development Center written by David W. Taylor Naval Ship Research and Development Center and published by . This book was released on 1955 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Propulsion for Naval Surface Vessels written by United States. Congress. Joint Committee on Atomic Energy and published by . This book was released on 1964 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classified material has been deleted.

Download or read book Navy Ship Propulsion Technologies written by Ronald O'Rourke and published by . This book was released on 2006 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: "General strategies for reducing the Navy's dependence on oil for its ships include reducing energy use on Navy ships; shifting to alternative hydrocarbon fuels; shifting to a greater reliance on nuclear propulsion; and making use of sail and solar power."--p. [2].

Download or read book The Naval Nuclear Propulsion Training Program written by United States. Naval Nuclear Propulsion Program and published by . This book was released on 1960 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Navy Nuclear Powered Surface Ships written by Ronald O'Rourke and published by DIANE Publishing. This book was released on 2010-10 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: (1) Intro. and Issue for Congress; (2) Background: Nuclear and Conventional Power for Ships; Nuclear Power for a Surface Combatant; Naval Nuclear Propulsion Program; Current Navy Nuclear-Powered Ships; CG(X) Cruiser Program; Reactor Plant for a Nuclear-Powered CG(X); Construction Shipyards; Nuclear-Capable Shipyards; Surface Combatant Shipyards; 2006 Navy Alternative Propulsion Study; (3) Potential Issues for Congress: Cost; Development and Design Cost; Procurement Cost; Operational Effectiveness; Ship Construction; Shipyards; Nuclear-Propulsion Component Manufacturers; Environmental Impact; (4) Potential Options for Congress; (5) Legislative Activity for FY 2010. Charts and tables.

Download or read book Navy Ship Propulsion written by U. S. Government Accountability Office ( and published by BiblioGov. This book was released on 2013-06 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pursuant to a congressional request, GAO provided information on the Navy's intercooled recuperated (ICR) engine program, focusing on the: (1) Navy's need for the engine; (2) cost, schedule, and performance of the program; and (3) impact of the Navy's test and development strategies. GAO found that: (1) some Navy officials are questioning the economic viability of the ICR engine program and have raised concerns over placing ICR engines on naval destroyers, since most destroyers are equipped with reliable propulsion systems; (2) engine development costs pose a significant economic investment; (3) some officials believe the engine should not be used on naval destroyers given the small number of new U.S. destroyers involved, adequacy of current destroyer engines, high cost of incorporating the engine, uncertainty of future integration plans, and current state of ICR development; (4) the Navy has not recovered from initial recuperator failure that resulted from design, manufacturing, and quality assurance problems; (5) a contractor is instituting a recovery plan to redesign future recuperators, but the plan is not allowing sufficient time to evaluate test data prior to ordering production ICR engines; (6) the Navy has interrupted work on redesigning future recuperators because of funding reductions, contractor quality control problems, manufacturing problems, and delivery delays; and (7) the Navy needs to decide how and when it will use the Philadelphia ICR test facility and if it will test the ICR engine at sea.

Download or read book Too Far on a Whim written by Tyler A. Pitrof and published by University of Alabama Press. This book was released on 2024 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Argues that the US Navy's commitment to high-steam propulsion for its World War II fleet was a tactical, technological, and bureaucratic failure