Design, Analysis, and Evaluation of the UC-Berkeley Wave-Energy Extractor

Handle URI:
http://hdl.handle.net/10754/597947
Title:
Design, Analysis, and Evaluation of the UC-Berkeley Wave-Energy Extractor
Authors:
Yeung, Ronald W.; Peiffer, Antoine; Tom, Nathan; Matlak, Tomasz
Abstract:
This paper evaluates the technical feasibility and performance characteristics of an ocean-wave energy to electrical energy conversion device that is based on a moving linear generator. The UC-Berkeley design consists of a cylindrical floater, acting as a rotor, which drives a stator consisting of two banks of wound coils. The performance of such a device in waves depends on the hydrodynamics of the floater, the motion of which is strongly coupled to the electromagnetic properties of the generator. Mathematical models are developed to reveal the critical hurdles that can affect the efficiency of the design. A working physical unit is also constructed. The linear generator is first tested in a dry environment to quantify its performance. The complete physical floater and generator system is then tested in a wave tank with a computer-controlled wavemaker. Measurements are compared with theoretical predictions to allow an assessment of the viability of the design and the future directions for improvements. © 2012 American Society of Mechanical Engineers.
Citation:
Yeung RW, Peiffer A, Tom N, Matlak T (2012) Design, Analysis, and Evaluation of the UC-Berkeley Wave-Energy Extractor. Journal of Offshore Mechanics and Arctic Engineering 134: 021902. Available: http://dx.doi.org/10.1115/1.4004518.
Publisher:
ASME International
Journal:
Journal of Offshore Mechanics and Arctic Engineering
Issue Date:
2012
DOI:
10.1115/1.4004518
Type:
Article
ISSN:
0892-7219
Sponsors:
The research reported has been supported in part by the KAUST (King Abdullah University of Science and Technology) and Berkeley AEA Award under Grant No. KAUST-25478 during 2008-2010. We are grateful to D. Roddier of Marine Innovation & Technology, T. Raybon of the USCG, and at Berkeley, to H. Kang, J. Khorsandi, K.-F. Kwok, and C. Cochet for their invaluable assistance, and to many useful discussions with Professor Dennis K. Lieu.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYeung, Ronald W.en
dc.contributor.authorPeiffer, Antoineen
dc.contributor.authorTom, Nathanen
dc.contributor.authorMatlak, Tomaszen
dc.date.accessioned2016-02-25T12:59:22Zen
dc.date.available2016-02-25T12:59:22Zen
dc.date.issued2012en
dc.identifier.citationYeung RW, Peiffer A, Tom N, Matlak T (2012) Design, Analysis, and Evaluation of the UC-Berkeley Wave-Energy Extractor. Journal of Offshore Mechanics and Arctic Engineering 134: 021902. Available: http://dx.doi.org/10.1115/1.4004518.en
dc.identifier.issn0892-7219en
dc.identifier.doi10.1115/1.4004518en
dc.identifier.urihttp://hdl.handle.net/10754/597947en
dc.description.abstractThis paper evaluates the technical feasibility and performance characteristics of an ocean-wave energy to electrical energy conversion device that is based on a moving linear generator. The UC-Berkeley design consists of a cylindrical floater, acting as a rotor, which drives a stator consisting of two banks of wound coils. The performance of such a device in waves depends on the hydrodynamics of the floater, the motion of which is strongly coupled to the electromagnetic properties of the generator. Mathematical models are developed to reveal the critical hurdles that can affect the efficiency of the design. A working physical unit is also constructed. The linear generator is first tested in a dry environment to quantify its performance. The complete physical floater and generator system is then tested in a wave tank with a computer-controlled wavemaker. Measurements are compared with theoretical predictions to allow an assessment of the viability of the design and the future directions for improvements. © 2012 American Society of Mechanical Engineers.en
dc.description.sponsorshipThe research reported has been supported in part by the KAUST (King Abdullah University of Science and Technology) and Berkeley AEA Award under Grant No. KAUST-25478 during 2008-2010. We are grateful to D. Roddier of Marine Innovation & Technology, T. Raybon of the USCG, and at Berkeley, to H. Kang, J. Khorsandi, K.-F. Kwok, and C. Cochet for their invaluable assistance, and to many useful discussions with Professor Dennis K. Lieu.en
dc.publisherASME Internationalen
dc.titleDesign, Analysis, and Evaluation of the UC-Berkeley Wave-Energy Extractoren
dc.typeArticleen
dc.identifier.journalJournal of Offshore Mechanics and Arctic Engineeringen
dc.contributor.institutionUC Berkeley, Berkeley, United Statesen
dc.contributor.institutionMarine Innovation and Technology, Berkeley, United Statesen
dc.contributor.institutionSchlumberger, Sugar Land, United Statesen
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