Testing is not only an essential part of WaveRoller technology development, but it is also deeply rooted in the manufacturing and operating processes. During many years of the technology development, we have crystallized a standard operating procedures that yield incremental improvements at every cycle of the development.
In our research and development activities, we run cycles where each iteration of technology development combines inputs from numerical modelling, scaled tank tests and open sea tests.
In addition to developing in house expertise in numerical simulations and computational fluid dynamics we cooperate with universities, research institutions and specialized engineering firms to ensure that our estimates and simulations are reliable. We place heavy emphasis on identifying the weakest links in the design at an early stage, when errors are easier to identify and eliminate.
To further validate the results of the computer simulations, we conduct wave tank tests. Scale models allow us to analyze whether calculations are correct and reliable. It is much more cost effective to test a smaller-scale unit in a wave tank, compared to building a full-scale unit and finding design errors at that advanced stage.
Once theoretical calculations and wave tank tests prove the design reliable, it is possible to building larger-scale WaveRoller units that to be operated in real sea conditions. Apart from generating electricity, the units continue to provide to an invaluable stream of performance data in the field. This information is used to further improve the performance and reliability of subsequent generations of WaveRoller.
One of the advantages of WaveRoller technology is the fact that we can reliably and cost efficiently validate the functionality and performance of our devices before they are even deployed in the ocean. While bench testing is possible on land, it can also be used to simulate real sea conditions.
The data representing sea states is fed into a test rig, which transfers the energy to the tested device in the same way as if the device was absorbing energy from the waves. The absorbed energy is, in turn, converted into electricity by the generator running inside the tested WaveRoller. We can thus measure the performance of the device, as well as, ensure that it works properly before installing it in the sea.