Neptune Wave Power, LLC (‘NWP’), worked with OWET, the Northwest National Marine Renewable
Energy Center (‘NNMREC’) and Oregon State University (O.H. Hinsdale Wave Research Laboratory) to
build and test a 1/10 scale model wave energy conversion (‘WEC’) device. This model is based upon
NWP patented technology and was the latest generation design that included more sensitive
instrumentation and power take-off modeling capabilities. This project included the design, build and lab
test of the scale model.
The scale model was designed for multiple configurations and was run through a series of wave tests to
determine the optimal configuration. Over thirty (30) configurations of the model were tested and device
telemetry as well as power take-off data was collected for each series of tests.
The scale model was designed by Waldron Engineering, Inc, in Exeter, New Hampshire and built in
Dallas Texas by Buzzwerks. The model and instrumentation was shipped to Oregon for the wave tests.
The wave lab tests were executed at the Tsunami Wave Basin located at Oregon State University
Campus. Testing goals included evaluation of buoy parameters against known wave conditions and
determine the ideal buoy configuration.
The Oregon State University Tsunami Wave Basin was designed as a facility used for next generation
remote tsunami research but also is used as a research facility for companies testing wave power energy
converters. The tsunami basin has a length of 160 feet, width of 87 feet, a depth of 7 feet and is equipped
with large stoke direction wavemaker with active wave absorption. Twenty-nine panels 6.6 feet tall can
create regular, irregular, tsunami, multidirectional, or user defined wave types. Wave periods can vary
from 0.5 seconds to 10 seconds.
Instrumentation used to gather data installed on the Model 2.0 buoy included a torque transducer to track
pendulum position, velocity, and shaft torque and a six degrees of freedom accelerometer to determine
current buoy position and track the buoy reactions to the waves. The instrumentation fed back into
DSpace, a digital open source software program used to capture data. The data was then processed into a
+/- 5V signal and sent to the same analog data acquisition system used by the wave gages. This system
provided simple post processing of data due to time correlation.
Oregon Wave Energy Trust and the OSU Libraries cooperate to provide long-term access to OWET reports. OSU's ScholarsArchive is the digital repository for continual access to the report. The OWET website, http://www.oregonwave.org, provides immediate access to OWET funded reports.