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A COMPUTER-MODEL FOR SHIPBOARD energy ANALYSIS

NAVAL ENGINEERS JOURNAL 1984年第5期96卷 33-45页

作者： DETOLLA, JP FLEMING, JR Joseph DeTolla:is a ship systems engineer in the Ship Systems Engineering Division SEA 56D5 at the Naval Sea Systems Command. His career with the Navy started in 1965 at the Philadelphia Naval Shipyard Design Division. In 1971 he transferred to the Naval Ship Engineering Center. He has held positions as a fluid systems design engineer and auxiliary systems design integration engineer. Mr. DeTolla has worked extensively in the synthesis and analysis of total energy systems notably the design development of the FFG-7 class waste heat recovery system. He is NA VSEA's machinery group computer supported design project coordinator and is managing the development of a machinery systems data base load forecasting algorithms and design analysis computer programs. Mr. DeTolla has a bachelor of science degree in mechanical engineering from Drexel University and a master of engineering administration degree from George Washington University. He is a registered professional engineer in the District of Columbia and has written several technical papers on waste heat recovery and energy conservation. Jeffrey Fleming:is a senior project engineer in the Energy R&D Office at the David Taylor Naval Ship R&D Center. In his current position as group leader for the future fleet energy conservation portion of the Navy's energy R&D program he is responsible for the identification and development of advanced components and subsystems which will lead to reductions in the fossil fuel consumption of future ships. Over the past several years he has also directed the development and application of total energy computer analysis techniques for the assessment of conventional and advanced shipboard machinery concepts. Mr. Fleming is a 1971 graduate electrical engineer of Virginia Polytechnic Institute and received his MS in electrical engineering from Johns Hopkins University in 1975. Mr. Fleming has authored various technical publications and was the recipient of the Severn Technical Society's “Best Technical Paper of the Year” award in 1

In support of the Navy's efforts to improve the energy usage of future ships and thereby to reduce fleet operating costs, a large scale computer model has been developed by the David Taylor Naval Ship Research and Development Center (DTNSRDC) to analyze the performance of shipboard energy systems for applications other than nuclear or oil-fired steam propulsion plants. This paper discusses the applications and utility of this computer program as a performance analysis tool for design of ship machinery systems. The program is a simulation model that performs a complete thermodynamic analysis of a user-specified energy system. It offers considerable flexibility in analyzing a variety of propulsion, electrical, and auxiliary plant configurations through a component building block structure. Component subroutines that model the performance of shipboard equipment such as engines, boilers, generators, and compressors are available from the program library. Component subroutines are selected and linked in the program to model the desired machinery plant functional configurations. The operation of the defined shipboard energy system may then be simulated over a user-specified scenario of temperature, time, and load profiles. The program output furnishes information on component operating characteristics and fuel demands, which allows evaluation of the total system performance.

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FUTURE PROPULSION MACHINERY TECHNOLOGY FOR GAS-TURBINE POWERED FRIGATES, DESTROYERS, AND CRUISERS

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NAVAL ENGINEERS JOURNAL 1984年第2期96卷 34-46页

作者： BASKERVILLE, JE QUANDT, ER DONOVAN, MR USN The Authors Commander James E. Baskerville USNis presently assigned to Naval Sea Systems Command (NA VSEA) as the Ship Design Manager for the DDG 51 the Navy's next generation surface combatant. A graduate of the U.S. Naval Academy Class of 1969 he is a qualified Surface Warfare Officer and designated Engineering Duty Officer (ED). He received his M.S. degree in Mechanical Engineering and his professional degree of Ocean Engineer from the Massachusetts Institute of Technology (MIT) and holds a patent right on an Electronic Control and Response System. His naval assignments include tours in USSRamsey (FFG-2) Aide and Flag Lieutenant to the Commander Naval Electronic Systems Command and Ship Superintendent Surface Type Desk Officer and Assistant Design Superintendent at NA VSHIPYD Pearl Harbor. He was awarded the Meritorious Service Medal for distinguished performance at Pearl Harbor Naval Shipyard. As an author he has contributed articles to the ASNEJournaland given presentations at local sections on ship design the use of innovative technology in ship repair and maintenance and the costs and risks associated with engineering progress. Commander Baskerville is a registered Professional Engineer in the State of Virginia an adjunct professor teaching marine engineering at Virginia Tech. and in addition to ASNE which he joined in 1975 is a member of SNAME Tau Beta Pi Sigma Xi ASME and the American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE). Dr. Earl R. Quandt:received his degree of Chemical Engineer from the University of Cincinnati in 1956 and his Ph.D. degree in Chemical Engineering from the University of Pittsburgh in 1961. He worked in the naval reactors program at the Bettis Atomic Power Laboratory from 1956 to 1963. Since that time he has been with David Taylor Naval Ship Research and Development Center Annapolis Maryland where he is Head of the Power Systems Division. He contributed to this paper while on a one year assignment to the U.S. Naval Academy as V

A turning point occurred in naval engineering in 1972 when the U.S. N avy chose to use marine gas turbines for the propulsion of its new SPRUANCE and PERRY Class ships. This paper reviews the more than twenty years of experience with turbine technology and its design integration into combat ships needed to make that decision. It is concluded that the availability of a good second generation aircraft derivative engine with proven reliability and a strong commercial base, i.e., the LM-2500, was as important to the decision as was the predicted improved ship effectiveness and cost benefits. This paper discusses improvements that can be made to the twin engine, single gear, single propeller shaft system. Focusing only on this mechanical transmission concept, it addresses the impact of possible improvements to the engine, gear, and shafting. In particular, the paper discusses current LM-2500 related R&D efforts to: (a) obtain improved part-power fuel rates, (b) integrate with a reversing reduction gear, and (c) add on a waste heat recovery steam cycle. Looking ahead to the year 2000, this paper suggests that a successor to the ubiquitous LM-2500 will appear in the 15 MW power range to provide the next step in the evolution of the twin engine package. This new naval engine will most likely be based on an aircraft core that exists at present, such that it will have demonstrated its reliability and commercial potential through many hours of testing prior to its mid-1990 marine conversion. This new engine is expected to offer improved air flow, an excellent fuel rate (approaching a flat 0.30 LB/HP-HR), and effective maintenance monitoring, all at some expense in size, weight, and cost. The year 2000 engine will burn a liquid hydrocarbon fuel similar to JP-5 because of its aircraft origins. Combined with advances in gear and shafting technology, the full twin engine propulsion system of the year 2000 should be markedly lighter, smaller, and more efficient than today's units.

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Operational systems, logistics engineering and technology insertion

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NAVAL ENGINEERS JOURNAL 1997年第3期109卷 205-220页

作者： Grubb, MJ Skolnick, A Michael J. Grubb:has perfomzed naval engineering at the Crane Division Naval Surface Warfare Center (NSWC) for more than twenty-five years. He currently the program manager for the Sustainable Hardware and Affordable Readiness Practice Program (SHARP). is a Navy-wide logistics research and development prgram aimed at the successful transiton of proved technologies inot the fleet. SHARP focuses on reducing acquisition performance capability reliability maintainability and readiness of these systems. Mr. Grubb has served as a department director for the past eleven years. His most recent assignment was as director of the Tactical Computer Resources and Test Equipment Department. This organization provided acquisition and in-service engineering support of the Navy's tectical embedded computers priphirals displays and mass memory storage devices. The organization also provided a complete range of product engineering and metrology engineerig services for SSP NevSeaSysCom and the Trident Program. Prior to this appointment Mr. Grubb was deptuy director psysical security programs department and site responsible for program management and system integration of ashore integrated security systems. Mr. Grubb holds a B.S. degree in industrial engineering from Iowa State Universtiy an M.S. degree in industrial engineering from Purdue University and has copleted the course work (Dec.'96 for a master's degree in public and environment affairs at Indiana University-Purdue Univeristy Indianapolis. Dr. Alfred Skolnick operates System Science Consultants (SSC) specilizing in strategic planning technical program definiton technology assessment and engineering analyses on selected matters of national interest. He has taught physics mathematics and management sciences at University of Virginia and Marymount University and is currently adjunct professor of mathematics at Northern Virginia Community College. Form 1985 to 1989 he was president of the American Society of Noval Engineers. Dr. Skolnick served at Applied Physic

In an era of fiscal austerity, downsizing and unforgiving pressure upon human and economic capital, it is an Augean task to identify resources for fresh and creative work. The realities of the day and the practical demands of more immediate fleet needs can often dictate higher priorities. Yet, the Navy must avoid eating its seed corn. Exercising both technical insight and management foresight, the fleet, the R&D community, the Office of the Chief of Naval Operations (OpNav) and the product engineering expertise of the Naval Surface Warfare Center (NSWC) are joined and underway with integrated efforts to marry new, fully demonstrated technologies and operational urgencies. Defense funding today cannot sponsor all work that can be mission-justified over the long term because budgets are insufficient to support product maturation within the classical development cycle. However, by rigorous technical filtering and astute engineering of both marketplace capabilities and currently available components, it is possible in a few select cases to compress and, in effect, integrate advanced development (6.3), engineering development (6.4), weapon procurement (WPN), ship construction (SCN), operation and maintenance (O&M,N) budgetary categories when fleet criticalities and technology opportunities can happily meet. In short, 6.3 funds can be applied directly to ''ripe gateways'' so modern technology is inserted into existing troubled or aging systems, sidestepping the lengthy, traditional development cycle and accelerating practical payoffs to recurrent fleet problems. To produce such constructive results has required a remarkable convergence of sponsor prescience and engineering workforce excellence. The paper describes, extensively, the philosophy of approach, transition strategy, polling of fleet needs, technology assessment, and management team requirements. The process for culling and selecting specific candidate tasks for SHARP sponsorship (matching operational need with t

关键词： Naval vessels

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The effect of temperature and biomass pre-treatment on non-catalytic gasification of Indonesian sugarcane bagasse

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AIP Conference Proceedings 2018年第1期2026卷

作者： Aldillah Herlambang Shafwan Amrullah Daniyanto Daniyanto Yano Surya Pradana Rochmadi Arief Budiman 1Chemical Engineering Department Faculty of Engineering Universitas Gadjah Mada Jalan Grafika 2 Yogyakarta 55281 Indonesia 2Polytechnic of LPP - Plantation Training Institute Yogyakarta Indonesia 3Master Program of Systems Engineering Faculty of Engineering Universitas Gadjah Mada Jalan Teknika Utara No. 3 Yogyakarta 55281 Indonesia 4Center for Energy Studies Universitas Gadjah Mada Sekip K1A Yogyakarta 55281 Indonesia

Sugarcane bagasse (SCB) gasification is a promising method that used in energy generation field. The impurities of SCB such as moisture content, ash and volatile maters will disturb the gasification process and decrease yield and quality of syngas. Pre-treatment, such as pelleting and torrefaction, can be applied on SCB to improve gasification performance in a gasifier. The aims of this experiment were to study non-catalytic gasification of Indonesian SCB for syngas production in a downdraft gasifier. This experimental investigation was focused on gasification temperature effect (800, 950 and 1050°C) and pre-treatment methods (pelleting and torrefaction) of Indonesian SCB on carbon conversion efficiency (CCE), syngas volumetric percentage and lower heating value (LHV). The result showed that the highest CCE was 88.16%, obtained at 1050°C of torrefied SCB gasification. Meanwhile, the highest LHV of syngas was 4.48 MJ/Nm3, obtained at 1050°C of pelletized SCB gasification.

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The importance of tropical tree-ring chronologies for global change research

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Quaternary Science Reviews 2025年 355卷

作者： Groenendijk, Peter Babst, Flurin Trouet, Valerie Fan, Ze-Xin Granato-Souza, Daniela Locosselli, Giuliano Maselli Mokria, Mulugeta Panthi, Shankar Pumijumnong, Nathsuda Abiyu, Abrham Acuña-Soto, Rodolfo Adenesky-Filho, Eduardo Alfaro-Sánchez, Raquel Anholetto Junior, Claudio Roberto Aragão, José Roberto Vieira Assis-Pereira, Gabriel Astudillo-Sánchez, Claudia C. Carolina Barbosa, Ana Barreto, Nathan de Oliveira Battipaglia, Giovanna Beeckman, Hans Botosso, Paulo Cesar Bourland, Nils Bräuning, Achim Brienen, Roel Brookhouse, Matthew Buajan, Supaporn Buckley, Brendan M. Camarero, J. Julio Carrillo-Parra, Artemio Ceccantini, Gregório Centeno-Erguera, Librado R. Cerano-Paredes, Julián Cervantes-Martínez, Rosalinda Chanthorn, Wirong Chen, Ya-Jun Cintra, Bruno Barçante Ladvocat Cornejo-Oviedo, Eladio Heriberto Cortés-Cortés, Otoniel Costa, Clayane Matos Couralet, Camille Crispin-DelaCruz, Doris Bianca D'Arrigo, Rosanne David, Diego A. De Ridder, Maaike Del Valle, Jorge Ignacio Díaz-Carrillo, Oscar A. Dobner Jr, Mário Doucet, Jean-Louis Dünisch, Oliver Enquist, Brian J. Esemann-Quadros, Karin Esquivel-Arriaga, Gerardo Fayolle, Adeline Fenilli, Tatiele Anete Bergamo Ferrero, M. Eugenia Fichtler, Esther Finnegan, Patrick M. Fontana, Claudia Francisco, Kainana S. Fu, Pei-Li Galvão, Franklin Gebrekirstos, Aster Giraldo, Jorge A. Gloor, Emanuel Godoy-Veiga, Milena Guerra, Anthony Haneca, Kristof Harley, Grant Logan Heinrich, Ingo Helle, Gerhard Hernández-Díaz, José Ciro Hornink, Bruna Hubau, Wannes Inga, Janet G. Islam, Mahmuda Jiang, Yu-mei Kaib, Mark Hassan Khamisi, Zakia Koprowski, Marcin Layme, Eva Leffler, A. Joshua Ligot, Gauthier Lisi, Claudio Sergio Loader, Neil J. Lobo, Francisco de Almeida Longhi-Santos, Tomaz Lopez, Lidio López-Hernández, María I. Lousada, José Luís Penetra Cerveira Manzanedo, Rubén D. Marcon, Amanda K. Maxwell, Justin T. Mendivelso, Hooz A. Mendoza-Villa, Omar N. Menezes, Ítallo Romany Nunes Montóia, Valdinez Ribeiro Moors, Eddy Moreno, Miyer Muñiz-Castro, Miguel Angel Nabais, Cristina Nathalang, SP Campinas13083-970 Brazil School of Natural Resources and the Environment University of Arizona TucsonAZ United States Laboratory of Tree-Ring Research University of Arizona TucsonAZ United States Belgian Climate Centre Ringlaan 3 Uccle1090 Belgium CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Yunnan Mengla666303 China Natural Resources and Environmental Sciences Department Forestry Ecology and Wildlife Program Alabama A&M University AL United States Department of Botany Institute of Biosciences University of São Paulo R. do Matão 277 São Paulo05508-090 Brazil Center of Nuclear Energy in Agriculture University of São Paulo Av. Centenário 303 13416-000 Brazil Institute of Geography Friedrich-Alexander-University Erlangen-Nuremberg Wetterkreuz 15 Erlangen91058 Germany United Nations Avenue P.O. Box 30677-00100 Nairobi Kenya Faculty of Environment and Resource studies Mahidol University 999 Phutthamonthon Rd4 Salaya Phutthamonthon Nakhon Pathom73170 Thailand C/O ILRI Campus Gurd Shola P.O. Box 5689 Addis Ababa Ethiopia Department of Microbiology and Parasitology Universidad Nacional Autónoma de Mexico Mexico City Mexico Colegio de Geografía Facultad de Filosofia y Letras Universidad Nacional Autónoma de Mexico Mexico City Mexico Department of Forest Engineering Universidade Regional de Blumenau R. São Paulo 3366 Itoupava Seca Santa Catarina 89030-000 Brazil Northern Forestry Centre Canadian Forest Service Natural Resources Canada 5320 122 Street NW EdmontonABT6H 3S5 Canada Department of Biology Wilfrid Laurier University 75 University Avenue W WaterlooONN2L 3C5 Canada Forest Management Program Mamiraua Institute for Sustainable Development Tefé Brazil Av. Mister Hull S/N - PICI Campus CE Fortaleza60440-900 Brazil Department of Forest Sciences Luiz de Queiroz College of Agriculture University of Sao Paulo Av. Pádua Dias 11 SP Piracicaba13418-900

Tropical forests and woodlands are key components of the global carbon and water cycles. Yet, how climate change affects these biogeochemical cycles is poorly understood because of scarce long-term observations of tropical tree growth. The recent rise in tropical tree-ring studies may help to fill this gap, but a large-scale quantitative analysis of their potential in global change research is missing. We compiled a list of all tropical tree species known to form annual tree rings and built a network encompassing 492 tropical ring-width chronologies to evaluate the potential to generate insights on climate sensitivity of woody productivity and to build centuries-long reconstructions of climate variability. We assess chronology quality, length, and climatic representativeness and explore how these change along climatic gradients. Finally, we applied species-distribution modeling to identify regions with potential for tree-ring studies in ecological and climatic studies. The number of tropical chronologies has rapidly increased, with ∼400 added over the past two decades. Yet, tree-ring studies are biased towards high-elevation locations, with gaps in warmer and wetter climates, on the African continent, and for angiosperm species. The longest chronologies with strongest climate signals (i.e., synchronous growth variations among trees) are from cool regions. In wet regions, climate signals and precipitation sensitivity decrease. Most tropical regions harbor 5–15 (and up to 80) species with proven potential to generate chronologies. The potential for long climate reconstructions is particularly high in drier high elevation sites. Our findings support strategies to effectively expand tree-ring research in the tropics, by targeting specific species and regions. Tropical dendrochronology can importantly contribute to global change research by generating historical context of climate extremes, quantifying climate sensitivity of woody productivity and benchmarking vegetation

关键词： Tropical cyclone

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Study of cultivation and growth rate kinetic for mixed cultures of local microalgae as third generation (G-3) bioethanol feedstock in thin layer photobioreactor

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Journal of Physics: Conference Series 2018年第1期1022卷

作者： Wahyu Prihastuti Yuarrina Yano Surya Pradana Arief Budiman Akmal Irfan Majid Indarto Eko Agus Suyono Master Program of Systems Engineering Universitas Gadjah Mada Jalan Teknika Utara 3 Yogyakarta Indonesia Chemical Engineering Department Universitas Gadjah Mada Jalan Grafika No. 2 Yogyakarta Indonesia Center for Energy Studies Universitas Gadjah Mada Sekip K1a Yogyakarta Indonesia Mechanical and Industrial Engineering Department Universitas Gadjah Mada Jalan Grafika No. 2 Yogyakarta Indonesia Faculty of Biology Universitas Gadjah Mada Jalan Teknika Selatan Yogyakarta Indonesia

The increasing use of fossil fuels causes the depletion in supply and contributes to climate change by GHG emissions into the atmosphere. Microalgae indicate as renewable and sustainable energy sources as they have a high potential for producing large amounts of biomass for third-generation biofuels (bioethanol and biodiesel) feedstock. However, there are several parameters which should be considered for microalgae cultivation, such as environmental conditions, medium composition and microalgae species. The aim of this research was to study cultivation of mixed microalgae cultures (Glagah consortium and Arthrospira maxima) in a thin layer photobioreactor. Farmpion medium, Bold's Basal Medium (BBM) and Thoriq Eko Arief (TEA) medium were investigated as cultivation medium for bioethanol feedstock for 7 days. The results showed that the highest dry weight concentration of microalgae was in Farmpion medium (0.35 mg/ml) and the highest carbohydrate concentration of microalgae was in BBM (0.14 mg/ml). Thus, the optimum medium of microalgae cultivation for bioethanol feedstock was BBM because of the highest carbohydrate-dry weight ratio (0.88). In addition, mathematical approach by using Contois model was used to find out the growth rate of microalgae cultivation in each medium.

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Aggregation of two-dimensional composite grains due to self-gravitation

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AIP Conference Proceedings 2020年第1期2219卷

作者： S. Viridi F. F. Florena F. Faizal A. Suroso Nurhasan Y. Bindar 1Nuclear Physics and Biophysics Institut Teknologi Bandung Bandung 40132 Indonesia 2Master Program in Physics Institut Teknologi Bandung Bandung 40132 Indonesia 3Nanotechnology and Graphene Research Center Universitas Padjadjaran Sumedang 45363 Indonesia 4Theoretical High Energy Physics Institut Teknologi Bandung Bandung 40132 Indonesia 5Physics of Earth and Complex Systems Institut Teknologi Bandung Bandung 40132 Indonesia 6Energy and Processing System of Chemical Engineering Institut Teknologi Bandung Bandung 40132 Indonesia

Binding force in the form of spring force binds two adjacent spherical grains and based on this interaction various structures of composite particles can be constructed. In this work only composite particles up to N = 4 are discussed, where N is number of spherical grains in a composite particle, and the forms are limited to the two-dimensional cases only. There is only one structure of composite particle for each value of N for 1 < N ≤ 2. For N = 3 there are five structures and for N = 4 there are fifteen structures. Between spherical grains from different composite particles only two types of force are considered. The first is a long-range attractive force in the form of gravitation force and the last is a short-range repulsion force in the form of normal force. The first type of force will help the aggregation process, while the second will prevent two spherical grains to collapse into a single grain due to the first. It is observed that the time required to produce the compact aggregate or T is dependent on N, where larger N makes larger T.

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MAGNETOHYDRODYNAMIC SUBMARINE PROPULSION systems

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NAVAL ENGINEERS JOURNAL 1991年第3期103卷 141-157页

作者： SWALLOM, DW SADOVNIK, I GIBBS, JS GUROL, H NGUYEN, LV VANDENBERGH, HH Daniel W. Swallomis the director of military power systems at Avco Research Laboratory Inc. a subsidiary of Textron Inc. in Everett Mass. Dr. Swallom received his B.S. M.S. and Ph.D. degrees in mechanical engineering from the University of Iowa Iowa City Iowa in 1969 1970 and 1972 respectively. He has authored numerous papers in the areas of power propulsion and plasma physics and currently is a member of the Aerospace Power Systems Technical Committee of the AIAA. Dr. Swallom has directed various programs for the development of advanced power generation systems lightweight power conditioning systems and advanced propulsion systems for marine applications. His previous experience includes work with Odin International Corporation Maxwell Laboratories Inc. Argonne National Laboratory and the Air Force Aero Propulsion Laboratory. Currently Dr. Swallom is directing the technical efforts to apply magnetohydrodynamic principles to a variety of propulsion and power applications for various marine vehicles and power system requirements respectively. Isaac Sadovnikis a principal research engineer in the Energy Technology Office at Avco Research Laboratory Inc. a subsidiary of Textron Inc. He received his B.S. in engineering (1974) B.S. in physics (1975) M.S. in aeronautics and astronautics (1976) and Ph.D. in physics of fluids (1981) at the Massachusetts Institute of Technology. Dr. Sadovnik has been involved in research work funded by DARPA concerning the use of magnetohydrodynamics for underwater propulsion. He has built theoretical models that predict the hydrodynamic behavior of seawater flow through magnetohydrodynamic ducts and their interaction with the rest of the vehicle (thrust and drag produced). In addition Dr. Sadovnik has been involved in research investigations geared toward the NASP program concerning the use of magnetohydrodynamic combustion-driven accelerator channels. Prior to joining Avco Dr. Sadovnik was a research assistant at MIT where he conducted experimental and

Magnetohydrodynamic propulsion systems for submarines offer several significant advantages over conventional propeller propulsion systems. These advantages include the potential for greater stealth characteristics, increased maneuverability, enhanced survivability, elimination of cavitation limits, greater payload capability, and the addition of a significant emergency propulsion system. These advantages can be obtained with a magnetohydrodynamic propulsion system that is neutrally bouyant and can operate with the existing submarine propulsion system power plant. A thorough investigation of magnetohydrodynamic propulsion systems for submarine applications has been completed. During the investigation, a number of geometric configurations were examined. Each of these configurations and mounting concepts was optimized for maximum performance for a generic attack class submarine. The optimization considered each thruster individually by determining the optimum operating characteristics for each one and accepting only those thrusters that result in a neutrally buoyant propulsion system. The results of this detailed optimization study show that the segmented, annular thruster is the concept with the highest performance levels and greatest efficiency and offers the greatest potential for a practical magnetohydrodynamic propulsion system for attack class submarines. The optimization study results were used to develop a specific point design for a segmented, annular magnetohydrodynamic thruster for an attack class submarine. The design point case has shown that this thruster may be able to provide the necessary thrust to propel an attack class submarine at the required velocity with the potential for a substantial acoustic signature reduction within the constraints of the existing submarine power plant and the maintenance of neutral buoyancy. This innovative magnetohydrodynamic propulsion system offers an approach for submarine propulsion that can be an important contributio

关键词： Ship Propulsion

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THE energy PROBLEM AND DEFENSE

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Naval Engineers Journal 1974年第1期86卷 19-27页

作者： SONENSHEIN, RADM. NATHAN USN The author graduated from the U.S. Naval Academy in the Class of 1938. His work has included instruction in Naval Construction and Marine Engineering at the Massachusetts Institute of Technology leading to a Master of Science degree in 1944 and the Advanced Management Program at Harvard Graduate School of Business in 1964. As an Engineering Duty Officer (EDO) he has served in various Navy commands including the Mare Island Naval Shipyard the former New York Naval Shipyard the USS Philippine Sea (CVA-47) during the Korean War as Chief Engineer and CINCPACFLT and COMSERVPAC Staffs as Fleet and Force Maintenance Officer. Within the Naval Ship Systems Command and its predecessor BUSHIPS his duties have included Director of the Facilities Division Head of the Hull Design Branch Director of the Ship Design Division Assistant Chief for Design Shipbuilding and Fleet Maintenance and as Commander Naval Ship Systems Command from 1969 until 1972. Other duties have included an assignment as the Project Manager for the Navy's Fast Deployment Logistic Ship Project from 1965 to 1967 Deputy Chief of Naval Material for Logistic Support from 1967 to 1969 and Chairman of the Naval Material Command Shipbuilding Council which commenced upon completion of his tour as Commander NAVSHIPS in 1972. On 4 September 1973 he was appointed Director of the Defense Energy Task Group (DETG) and subsequently on 15 November 1973 as Director of Energy for the Department of Defense. A former President of ASNE from 1970 to 1971 he is currently Vice-President of the American Society of Naval Architects and Marine Engineers. In addition he is a member of the honorary engineering society Sigma Xi and listed among those in Who's Who in America.

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THE energy CRISIS AND NAVAL SHIP RESEARCH AND DEVELOPMENT

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Naval Engineers Journal 1974年第3期86卷

作者： CDR. J. RICHARD GAUTHEY USN JOSEPH P. DeTOLLA CDR. J. RICHARD GAUTHEY USN & JOSEPH P. DeTOLLA Cdr. J. Richard Gauthey USN graduated from Cornell University in 1955 with a Bachelor of Mechanical Engineering degree and entered the U.S. Navy through the NROTC program. Following three tours of sea duty he attended the University of California at Berkeley where he earned his Master of Science degree. From 1963 to 1965 he was Project Officer for Aircraft Carriers and Amphibious Ships in the Design Division BUSHIPS. The succeeding three years he was Assistant Repair Superintendent for Surface Ships at the Pearl Harbor Naval Shipyard. After attending the Naval War College he was Maintenance Officer COMINELANT Staff prior to his present assignment as Director Ship Research and Technology Division NAVSHIPS where he has been since 1971. He is a member of both ASNE and SNAME. Joseph P. DeTolla a native of Philadelphia Pa. received his BS degree in Mechanical Engineering from Drexel University in 1969. He began his career with the U.S. Navy in 1965 as a Mechanical Engineering Trainee in the Philidelphia Naval Shipyard Design Division under the BUSHIPS Cooperative Education Training Program. In 1911 he joined NAVSEC as a Mechanical Engineer in the Fluid Systems Branch. For the past two years he has primarily been involved in conducting alternative auxiliary heating system “tradeoff” studies and in the design of total energy/waste heat recovery systems for the PF 109 Class Sea Control Ship DG/AEGIS and AO 177 Class. He is a registered Professional Engineer in the District of Columbia a member of ASE ASME and SNAME and a candidate for the Master of Engineering Administration degree at The George Washington University.

energy used by U.S. Navy ships is viewed in the context of the national situation. Shipboard usage and the controlling variables are summarized. Research and development being planned by the Navy is described. Efforts relate to conservation of energy as well as consideration of new fuels including hydrogen and liquid hydro-carbon fuels derived from coal, oil shale, and tar sands. A brief account is given of work sponsored by the Department of Interior to produce hydrocarbon fuels, and initial Navy efforts to characterize and evaluate one such fuel is reported. This fuel has been burned at sea in the USS Johnston (DD 821). Development of conservation measures encompasses the utilization of waste heat from gas turbine and diesel engine exhausts and diesel water jackets; more efficient machinery; and reduction of energy requirements. Specific developments discussed include a design methodology to optimize waste heat utilization and higher efficiency gas turbine systems.

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