作者:
FAIRBANKS, JWKENYON, CWCapt. John W. Fairbanks
USNR:received his M.S. degree from the University of Santa Clara and his B.S. degrees from Stanford University and the Maine Maritime Academy. He taught at the Texas A&M University and the University of Maryland and from 1954 until 1957 served in the U.S. Navy in the Pacific. Subsequently he was a Research Engineer with Hiller Aircraft where he worked on the annular ejector and designed the High-Speed Bearing and Shaft Test Stand for XC-142A and later at Philco Ford worked on advanced space power systems. At NASA-Goddard in 1967 as a Power System Engineer he was employed on several space craft including the Orbiting Astronomical Observatory. From 1971 until 1977 he was employed by the Naval Ship Engineering Center (NAVSEC) as a Program Engineer for FT9 Marine Gas Turbine Development and the Ceramic Demonstrator Gas Turbine and also as Coordinator of Gas Turbine Material Development. In addition he organized the first two Gas Turbine Materials on Marine Environment Conferences and the U.S. participation in the U.S. Navy/Royal Navy Conference. Currently he is a Program Manager in Applied Heat Engine High Temperature Materials and Instrumentation at the Department of Energy (DOE) where he also served as Chairman Engineering Materials Coordinating Committee for DOE. A Naval Reserve Captain and Chairman of the ASME Washington Chapter he also is the former President of the Washington Chapter of the Maine Maritime Academy Alumni former Vice-President of the Stephen Decatur Chapter
Naval Reserve Association and the outstanding 1975 Maine Maritime Academy Alumni. Capt. Fairbanks has authored over forty-five technical papers
and in both 1974 and 1975 was the winner of the ASE Niedermair Award. Mr. Clarence W. Kenyon:graduated from the State University of New York
Maritime College in 1960 and sailed on a Third Assistant Engineer's license with Isbrandtsen Steamship Company before accepting an engineering position with the Long Beach Naval Shipyard in 1961. In addition to his responsibilit
Synthetic fuels are assessed with respect to their potential use aboard Navy ships. The status of petroleum resources and the development of fuels from shale, coal, and biomass is summarized. A scenario of the project...
Synthetic fuels are assessed with respect to their potential use aboard Navy ships. The status of petroleum resources and the development of fuels from shale, coal, and biomass is summarized. A scenario of the projected availability of these fuels is presented which shows the sensitivity to funding and schedule. Diesel engine and gas turbine combustor tests with small quantities of coal derived and shale derived fuels are described and these tests results are evaluated for shipboard applications. Special shipboard modifications are discussed such as the replacement of rubber base seals, gaskets, and hoses with viton and teflon, and the use of stainless steel piping because of the fuel characteristics. Considerations for dual fuel systems using Diesel Fuel marine for starting, stopping, and maneuvering are included based upon early test results. Consideration is given to the use of these fuels in the shipboard environment since they require special handling and adoption of personnel safety measures.
作者:
RESNER, mEKLOmPARENS, SHLYNCH, JPMr. Michael E. Resner:received an Engineering Degree from Texas A&M University in 1966 and has done graduate work in management at American University. He is Director
Machinery Arrangements/Control Systems and Industrial Facilities Division (SEA 525) at the Naval Sea Systems Command. His previous positions have included Program Manager Solar Total Energy Program at the Department of Energy and Branch Chief Machinery Control Systems Branch at the Naval Ship Engineering Center. Mr. Stephen H. Klomparens:is a Naval Architect at Designers & Planners
Inc. and is engaged in development of computer aids for ship design. He received his B.S.E. degree in Naval Architecture and Marine Engineering from the University of Michigan in 1973 and his M.S. degree in Computer Science from the Johns Hopkins University. Mr. Kolmparens began his professional career at Hydronautics Inc. in 1974 where he was involved in the use of marine laboratory facilities for test and development of conventional and advanced marine craft. Since 1977 he has been involved with naval and commercial ship design and with development of computer-aided ship design tools. Mr. John P. Lynch:is a Principal Marine Engineer with Hydronautics
Inc. He was previously employed in the auxiliary machinery and computer-aided design divisions of the David W. Taylor Naval Ship R&D Center the machinery design division of the New York Naval Shipyard and the machinery arrangement code of the Bureau of Ships. His active naval service was as a ship superintendent in the production department of the Long Beach Naval Shipyard. Mr. Lynch received his B. S. degree in Marine Engineering from the New York State Maritime College and his M.S. degree in Mechanical Engineering from Columbia University. He is a licensed Professional Engineer in the State of New York and a member of ASNE.
The machinery arrangement design process has remained relatively unchanged over the years. Recently, external demands have been placed on both the product and the producers that call for changes to this process. This ...
The machinery arrangement design process has remained relatively unchanged over the years. Recently, external demands have been placed on both the product and the producers that call for changes to this process. This paper cites these external demands and traces the evolution of the process changes from the rule-of-thumb machinery box sizing routines up to the current automated procedures. The machinery arrangement design practice is presented, and existing analytic and graphics aids are discussed. The user requirements for improved design aids are presented, with implementation guidelines and hardware/software alternatives.
作者:
FAIRBANKS, JOHN W.The author is a graduate of the Maine Maritime Academy
Stanford University and the University of Santa Clara. His undergraduate degrees were in Marine and Mechanical Engineering and his Masters Degree Specialization was in Heat-Mass-Momentum Transfer within the Mechanical Engineering Department He has taught Gas Dynamics Thermodynamics and Direct Energy Conversion at Texas A&M and the University of Maryland and has sailed as a licensed Marine Engineer for two and a half years with the American Export Lines currently holding active First Assistant Steam Unlimited and Third Assistant Diesel Unlimited licenses. From 1954 to 1957 he was on active duty in the U.S. Navy serving in the USS Montrose (APA-212) as both Main Propulsion Assistant and Chief Engineer. While employed at Hiller Aircraft Company he was in the Advanced Research Group and worked on the Detached Coanda Effect for VTOL and ground effect machines as well as designing high-speed bearings and high-speed shaft test stands for the SC-142A an experimental tilt wing aircraft program. In 1963 he went to Philco-Ford to design a Brayton Cycle Power System for a solar probe spacecraft and also worked on the Thermal and Power System Design of the IDCSP (DOD's Communication Satellite). At NASA's Goddard Space Center for six years his responsibilities included design fabrication integration test launch and flight operation of solar arrays on two spacecraft and also as Power Systems Engineer for the Orbiting Astronomical Observatory the largest unmanned spacecraft flown. In 1971 he joined NAVSEC where he is currently the Program Engineer on the FT9 Gas Turbine Development Program and Coordinator of the Navy's Materials Programs for advanced gas turbines. Having organized the first two Navy Gas Turbine Materials Conferences he is presently organizing U.S. participation in a joint U.S. Navy Royal Navy Gas Turbine Materials Conference to be held in ‘the United Kingdom in September 1976. Mr. Fairbanks has authored or coauthored 21 technical papers and i
The current Navy philosophy for marine gas turbine engine development is to marinize an existing aircraft turbo jet engine. The FT9 marine Gas Turbine Engine is a 33,000 horsepower version of the Pratt and Whitney JT9...
The current Navy philosophy for marine gas turbine engine development is to marinize an existing aircraft turbo jet engine. The FT9 marine Gas Turbine Engine is a 33,000 horsepower version of the Pratt and Whitney JT9D engine, which powers the 747 aircraft. marinization of the JT9D basically involves removal of the fan section, addition of a power turbine, structural modification to several components, and material changes to provide corrosion‐resistance in the marine environment. Characteristics and ratings of the individual engine components are discussed as well as the assembled engine. The FT9 design incorporates the modular replacement concept. modular replacement permits replacement of short‐life components such as the hot‐section without removing the engine from its mounts. The FT9 specification requires development of a condition monitoring system as an integral part of the engine development. Thus, provisions for sensor installations are incorporated in the design. Accelerometers are installed on the internal engine bearing housings to provide improved vibration signals. These accelerometers are mounted on rods such that they are removable without engine disassembly. Extensive borescope provisions are included to provide capability to inspect all hot‐section components without disassembling the engine. The engine life‐limiting component is the hot‐section because of the susceptibility of the blade and vane materials to sulphidation/oxidation at the temperatures encountered with the advanced engines. Sophisticated made and vane cooling is used to allow high turbine inlet temperatures while keeping blade metal temperatures in a region where sulphidation/oxidation is only moderately active. Coatings are added to blades and vanes to extend engine life. Three FT9 engines will be delivered to the Navy. The target date for provisional Service Approval of FT9 is mid‐1978. FT9 will provide the U.S. Navy with the most advanced marine gas turbine with the highest powe
The storage of electric energy in a safe and environmentally friendly way is of ever-growing importance for a modern, technology-based society. With future pressures predicted for batteries that contain strategic meta...
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The storage of electric energy in a safe and environmentally friendly way is of ever-growing importance for a modern, technology-based society. With future pressures predicted for batteries that contain strategic metals, there is increasing interest in metal-free electrode materials. Among candidate materials, nonconjugated redox-active polymers (NC-RAPs) have advantages in terms of cost-effectiveness, good processability, unique electrochemical properties, and precise tuning for different battery chemistries. Here, we review the current state of the art regarding the mechanisms of redox kinetics, molecular design, synthesis, and application of NC-RAPs in electrochemical energy storage and conversion. Different redox chemistries are compared, including polyquinones, polyimides, polyketones, sulfur-containing polymers, radical-containing polymers, polyphenylamines, polyphenazines, polyphenothiazines, polyphenoxazines, and polyviologens. We close with cell design principles considering electrolyte optimization and cell configuration. Finally, we point to fundamental and applied areas of future promise for designer NC-RAPs.
In the last decade, zeolitic imidazolate frameworks (ZIFs) have been studied extensively for their potential as selective separation membranes. In this review, we highlight unique structural properties of ZIFs that al...
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In the last decade, zeolitic imidazolate frameworks (ZIFs) have been studied extensively for their potential as selective separation membranes. In this review, we highlight unique structural properties of ZIFs that allow them to achieve certain important separations, like that of propylene from propane, and summarize the state of the art in ZIF thin-film deposition on porous substrates and their modification by postsynthesis treatments. We also review the reported membrane performance for representative membrane synthesis approaches and attempt to rank the synthesis methods with respect to potential for scalability. To compare the dependence of membrane performance on membrane synthesis methods and operating conditions, we map out fluxes and separation factors of selected ZIF-8 membranes for propylene/propane separation. Finally, we provide future directions considering the importance of further improvements in scalability, cost effectiveness, and stable performance under industrially relevant conditions.
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