Feasibility study of tuned liquid column damper for ocean wave energy extraction

Intermittent nature and low efficiency are the major issues in renewable energy supply. To overcome these issues, one of the possible methods is through a hybrid system where multiple sources of renewable energy are combined to compensate each other’s weaknesses. The hybrid of solar energy and wave...

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Bibliographic Details
Main Authors: Wong, Yihong, King, Yeong-Jin, Lai, An-Chow, Chong, Kok-Keong, Lim, Boon-Han
Format: Conference Proceeding
Language:English
Subjects:
Alternative energy sources
Columns (structural)
Damping
Dynamic response
Energy harvesting
Feasibility studies
Floating structures
Hybrid systems
Hydraulic turbines
Offshore drilling rigs
Offshore engineering
Offshore structures
Renewable energy
Renewable resources
Shake table tests
Solar energy
Turbogenerators
Wave power
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Summary:Intermittent nature and low efficiency are the major issues in renewable energy supply. To overcome these issues, one of the possible methods is through a hybrid system where multiple sources of renewable energy are combined to compensate each other’s weaknesses. The hybrid of solar energy and wave energy becomes possible through the introduction of a stable floating platform which enables solar energy generation above it and wave energy harvesting underneath it. This paper is intended to study the feasibility of harnessing ocean wave energy using a tuned liquid column damper (TLCD), a type of passive damping device that is designed to suppress externally induced vibration force at a specific frequency range. The proposed TLCD is to be implemented within a floating offshore structure to serve as a vibration mitigating mechanism by reducing the dynamic response of the structure and simultaneously utilize the flowing motion of liquid within the TLCD for generating electricity. The constructed TLCD prototype is tuned according to theoretical study and tested using a shaking table with a predetermined frequency range. The oscillating motion of water within the TLCD and the potential of installation of hydro turbine generator in term of recoverable amount of energy are studied.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4979396