MHK Technologies/Rho Cee

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Rho Cee.png

Technology Profile
Primary Organization Float Inc

Technology Resource
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Wave
Technology Type
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Attenuator

Technology Description The Rho Cee is a multi resonant Oscillating Water Column OWC system in a wide aperture Terminator configuration Constructed in pre stressed reinforced concrete it is deployed afloat in deep water from the similarly constructed Pneumatically Stabilized Platform PSP of Float Inc The principle of design and operation is Impedance Matching wherein the input impedance of the Rho Cee is intended to match that characteristic of the targeted wave climate Resonant operation with controllable loading assures the required impedance matching Power take off See Components below Maintainability assured by all equipment located in the dry accessible to personnel on foot



Mooring Configuration Conventional spread mooring multi line in chain cable or synthetic with suction pile or drag penetrating type anchors Seasonally adjustable orientation
Optimum Marine/Riverline Conditions Designed and operated to suit location specific prevailing wave climate

Technology Dimensions
Length (m) 1000
Width (m) 12.5
Height (m) 16
Freeboard (m) 6
Draft (m) 10

Technology Nameplate Capacity (MW) Location specific Rating Length in meters x 1 x annual average unit incident power in kW m subject to economic optimization Wave to Wire efficiency 50
Device Testing
Scale Test •Yes an approximately 1 6th scale simplified two nested OWCs Rho Cee model was tested for wave energy capture efficiency the key issue in its conception The loading hence input impedance was varied by throttling the flow of displaced air through calibrated slide valves to and from atmosphere Spectral analyses of pressures and air flow rates revealed the degree of non linear behavior departure from constant impedance resulting from square law throttling characteristics When optimally loaded more than 90 of power incident on the presented baffle was found to be absorbed in relatively shallow water









Date Submitted 55:26.9

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