<tideeAbstracts><tideeAbs><RefNo>4154</RefNo><Contributors>Setoguchi T and Takaob M</Contributors>. <PublishYear>2006</PublishYear><Source><italic>Energy Conversion and Management</italic> 47(15-16): 2382-2396</Source><Affiliation>Department of Mechanical Engineering, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan</Affiliation><Title>Current status of self rectifying air turbines for wave energy conversion

TERI

TERI Information Digest on Energy and Environment

0972-6721

The Energy and Resources Institute

tidee-5-4-012

ABSTRACTS OF DISSERTATIONS OR ARTICLES

Tidal and wave energy

122006

54477478

<tideeAbstracts><tideeAbs><RefNo>4154</RefNo><Contributors>Setoguchi T and Takaob M</Contributors>. <PublishYear>2006</PublishYear><Source><italic>Energy Conversion and Management</italic> 47(15-16): 2382-2396</Source><Affiliation>Department of Mechanical Engineering, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan</Affiliation><Title>Current status of self rectifying air turbines for wave energy conversionThis paper reviews the present state of the art on self-rectifying air turbines, which could be used for wave energy conversion. The overall performances of the turbines under irregular wave conditions, which typically occur in the sea, have been evaluated numerically and compared from the viewpoints of their starting and running characteristics. The types of turbine included in the paper are: (a) WTGV (Wells turbine with guide vanes); (b) TSCB (turbine with self-pitch-controlled blades); (c) BWGV (biplane Wells turbine with guide vanes); (d) ISGV (impulse turbine with self-pitch-controlled guide vanes); and (e) IFGV (impulse turbine with fixed guide vanes). As a result, under irregular wave conditions, it is found that the running and starting characteristics of impulse type turbines could be superior to those of the Wells turbine. Moreover, the authors have explained the mechanism of the hysteretic behavior of the Wells turbine and the necessity of links for improvement of the performance of the ISGV. (18 figures, 38 references)