Investigations are currently being conducted by the Navy and several contractors to determine the technical feasibility and cost effectiveness of advanced regenerative or intercooled-regenerative gas turbines as a nav...
Investigations are currently being conducted by the Navy and several contractors to determine the technical feasibility and cost effectiveness of advanced regenerative or intercooled-regenerative gas turbines as a naval propulsion engine for future mid-size surface combatants. A comparison of the performance characteristics of these engines indicates that significant increases in the thermal efficiency above current simple-cycle engines will result by adding heat exchangers for regeneration alone or with intercooling. Design and performance characteristics of several advanced-cycle gas turbines are described which utilize turbomachinery from various existing simple-cycle gas turbines. Estimates of the weight and volume of recuperators and intercoolers for these conceptual engines are provided. The nominal part-load fuel consumption trends of the simple-cycle and the advanced-cycle engines are used to compare annual fuel usage of typical ships with various combinations of propulsion engines. The relative impacts of the advanced-cycle gas turbine on propulsion machinery spaces are compared with other energy efficient prime movers using the simple-cycle gas turbine as the baseline. Commercial applications for an advanced-cycle gas turbine are surveyed according to output power and market sector. This paper presents an overview of current results and discusses the technology areas which require additional investigation.
United States Naval Applied science Laboratory has been installing and retrieving deep sea mooring installations in southeastern part of Tongue of Ocean (TOTO), Bahamas since 1965;conventional moorings, such as vertic...
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United States Naval Applied science Laboratory has been installing and retrieving deep sea mooring installations in southeastern part of Tongue of Ocean (TOTO), Bahamas since 1965;conventional moorings, such as vertical "taut-wire" rope moorings, as well as moorings of more complex design have been used to expose variety of metallic and nonmetallic materials;because of loss of one mooring, multiple recovery systems was designed;new array, materials under exposure, and operations connected with installation are described.
作者：
LARSON, NORMAN O.DEMYTTENAERE, JULES H.OREM, JOHN B.Commander Norman O. Larson
USN: is an Engineering Duty Officer of the United States Navy who served in the Army as a sergeant of infantry in Europe during World War II. Appointed to the U. S. Naval Academy in 1945 he graduated in June 1949. After two years in the Amphibious Force U. S. Pacific Fleet on board the USS MOUNT McKINLEY (AGC-7) and one year on the USS BREMERTON (CA-130) during the Korean hostilities he attended Webb Institute of Naval Architecture. Receiving his Master of Science in Naval Architecture in 1955 he served two years as an Assistant Planning and Estimating Superintendent for Fitting Out and New Construction at Boston Naval Shipyard and then two years as Assistant Force Maintenance Officer on the staff of Commander Amphibious Force U. S. Pacific Fleet. From 1959–1961 he attended the University of California Berkeley for advanced work in Hydrodynamics. The next two years were spent at the David Taylor Model Basin as Propeller Program Officer. He has been a Project Coordinator in the Hull Design Branch Ship Design Division in the Bureau of Ships since August 1963. Commander J. H. Demyttenaere
U. S. Navy: is an Engineering Duty Officer of the United States Navy and is currently serving as a Project Coordinator in the Hull Design Branch of the Ship Design Division in the Bureau of Ships. He received his B.S. degree in Engineering from the U. S. Naval Academy in 1949. After serving a two year tour on board the USS PHILIPPINE SEA (CV-47) he was ordered to postgraduate training and received the degree of Naval Engineer from the Massachusetts Institute of Technology in 1954. He has served in numerous Engineering Duty Officer billets since 1954 including two years at Philadelphia Naval Shipyard in the Production Department two years of Staff Duty with Commander Service Squadron One three years as Design Project Officer at Supervisor of Shipbuilding New York and most recently as Repair Officer in USS ARCADIA (AD-23). Lieutenant Commander John B. Orem
Jr. USN: is an Engineering Dut
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