Journal
OCEAN ENGINEERING
Volume 150, Issue -, Pages 221-233Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2017.12.055
Keywords
Wave energy converter; Three-tether mooring; Techno-economic assessment; Cost-related metrics; Power absorption
Funding
- Australian Government Research Training Program Scholarship
- Australian Research Council [LP130100117]
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There are numerous designs and concepts that have been offered to extract energy from ocean waves. A heaving buoy is distinguished as the most popular device which predominantly harnesses energy from the vertical motion in waves. One such device is the bottom-referenced submerged heaving buoy represented by the Carnegie Clean Energy CETO system. The total power absorption of this converter can be increased by replacing the single-tether power take-off system by a three-tether mooring configuration thereby making motion controllable in heave and surge. The current paper provides a comparative performance analysis of the generic submerged heaving buoy connected to one tether and the three-tether converter in terms of the buoy motion, and design of the power takeoff and mooring systems. This is accompanied by a techno-economic analysis of two converters.
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