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Offshore Hydrokinetic Energy Conversion for Onshore Power GenerationDesign comparisons have been performed for a number of different tidal energy systems, including a fully submerged, horizontal-axis electro-turbine system, similar to Verdant Tidal Turbines in New York's East River, a platform-based Marine Current Turbine, now operating in Northern Ireland's Strangford Narrows, and the Rotech Lunar Energy system, to be installed off the South Korean Coast. A fourth type of tidal energy system studied is a novel JPL/Caltech hydraulic energy transfer system that uses submerged turbine blades which are mechanically attached to adjacent high-pressure pumps, instead of to adjacent electrical turbines. The generated highpressure water streams are combined and transferred to an onshore hydroelectric plant by means of a closed-cycle pipeline. The hydraulic energy transfer system was found to be cost competitive, and it allows all electronics to be placed onshore, thus greatly reducing maintenance costs and corrosion problems. It also eliminates the expenses of conditioning and transferring multiple offshore power lines and of building offshore platforms embedded in the sea floor.
Document ID
20150014708
Document Type
Conference Paper
External Source(s)
Authors
Jones, Jack A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Chao, Yi (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 3, 2015
Publication Date
May 31, 2009
Subject Category
Oceanography
Energy Production and Conversion
Meeting Information
International Conference on Ocean, Offshore and Arctic Engineering(Honolulu, HI)
Distribution Limits
Public
Copyright
Other
Keywords
hydraulic
wave
ocean
tidal energy