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Wave Powered Water Pump

The goal of the project was to finish the construction of a Wave Powered Water Pump (WPWP) from previous years work and deploy the system in random seas. The WPWP moves nutrients at a lower depth to the surface in a sustainable way using wave energy to help kelp aquacultures grow at a faster rate. This year we performed multiple tests in the UNH Chase engineering tank to ensure the system’s ability to pump water. Throughout the process of completing construction, we developed different methods to ensure the WPWP was watertight and that the inner cylinder of the spar was kept from filling with water by testing different options to fill the space with foam. We deployed and tested the WPWP outside the mouth of the Piscataqua River in New Hampshire in approximately 60 feet of water with the help of the R/V Gulf Challenger. The final system resulted in a flow rate of approximately 2.5 gallons per minute.

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