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Chapter Seven - Oscillating Water Columns and Other Types of Wave-Energy Converters

Published online by Cambridge University Press:  12 May 2020

Johannes Falnes  and
Adi Kurniawan
Johannes Falnes
Affiliation:
NTNU, Norwegian University of Science and Technology, Trondheim
Adi Kurniawan
Affiliation:
University of Western Australia, Albany
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Summary

The first part of Chapter 7 deals with oscillating water columns (OWCs). The concepts of radiation conductance and susceptance are introduced. The former is related to the radiated power, whereas the latter represents the reactive power. Expressions for the power absorbed by the OWC are derived, which are analogous to those of the oscillating body WEC. The potential energy of the OWC is also discussed. The last part of Chapter 7 deals with wave energy converters that move in modes other than the six conventional rigid-body modes. The theory of generalised modes are described, and some examples are given to illustrate the utility of the theory.

Keywords

radiationbodywaveexcitationpowerOWCvolumeairflowpressuremodesystemhydrostaticfar fieldchamberconductanceadmittancedampingphasesusceptanceimpedancegeneralisedstiffnessrestoringfloatingKochinHermitiansingularHaskindpneumaticpower takeoff
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Chapter
Information
Ocean Waves and Oscillating Systems
Linear Interactions Including Wave-Energy Extraction
 , pp. 242 - 261
Publisher: Cambridge University Press
Print publication year: 2020

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