Wave energy absorber mountable on wave-facing structure
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United States of America Patent
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-
Sep 13, 1983
Grant Date -
N/A
app pub date -
Sep 9, 1980
filing date -
Sep 20, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wave energy absorber comprising a caisson mountable on the seaside surface of an existing breakwater or coastal embankment, which caisson has a water chamber with an open side and a rear wall facing the open side. The distance from the open side to the rear wall is longer than one quarter of a wavelength L.sub.c in the water chamber so as to generate a standing wave in the water chamber with a node of the standing wave at a distance L.sub.c /4 from the rear wall toward the open side. A wave-power turbine impeller is pivotally supported in the caisson at the node position, the impeller rotating in only one direction, whereby wave energy is absorbed by the impeller for further conversion into electric or thermal energy. The caisson itself can also be utilized as a breakwater or an embankment.
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