Journal
OCEAN ENGINEERING
Volume 29, Issue 12, Pages 1463-1477Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0029-8018(01)00099-3
Keywords
wave energy; oscillating water column; equipment; wells turbine
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This paper investigates by numerical simulation the influence of the Wells turbine aerodynamic design on the overall plant performance, as affected by the turbine peak efficiency and the range of flow rates within which the turbine can operate efficiently. The problem of matching the turbine to an oscillating water column (OWC) is illustrated by taking the wave climate and the OWC of the Azores power converter. The study was performed using a time-domain mathematical model based on linear water wave theory and on model experiments in a wave tank. Results are presented of numerical simulations considering several aerodynamic designs of the Wells turbine, with and without guide vanes, and with the use of a bypass pressure-relief valve. (C) 2002 Elsevier Science Ltd. All rights reserved.
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