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NEPTUNE 3   Testing and Energy Absorption Experimments

We will continue gathering and analyzing research data from the Neptune 3 deployment at Keats Island.
 

We will test and further develop our  wave prediction algorithm using the RBRVirtuoso D I fast6 wave height logger, made by RBR in Ottawa.

Our focus is on optimizing wave energy absorption with respect to the properties of our axisymmetric buoyant point absorber WEC. 


We will also examine the effects of shoaling and diffraction on the point absorber inherent in the existing physical design of the WEC framework.

One of the experiments we are looking forward to doing is the comparison of actual electrical output by comparing impedance matching with the so called "slamming" approach.

 

Impedance matching occurs when the point absorber (PA) is oscillating in phase [as much as possible] with the the wave frequency excitation force.  This will be accomplished by changing the weight of the PA and using latching controls to vary the dampening force on the PA.

 

In "slamming" the buoyant PA is forced down into each wave trough as much as possible so the buoyancy & the vertical lift of the wave work together, naturally this approach requires synchronizing the PA with the wave troughs. 

 

 We are intrigued by the implications of the recently popular wave interfererence principle that "to absorb a wave means to generate a wave".
 

It is expected that this testing & experimentation will lead to an improved WEC system design utilizing modifications to existing hardware and software for Neptune 4.

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