Patent ID: 8928206
Filing Date: 2015-01-06
Classification: F03B,H02N,Y02E

Abstract:
1. Method for harvesting electrical energy from the kinetic energy of water waves, comprising the steps: providing a device in the water, the device being so configured that a portion of the device is arranged above the water surface, the device comprising an electroactive polymer which is arranged between electrodes, and mechanical energy from a change in the water level being transmitted in the device to the electroactive polymer; expanding the electroactive polymer from a minimum expansion ∈ wherein during the expansion of the electroactive polymer there is applied thereto for a time interval Δt relaxing the expanded electroactive polymer from the maximum expansion ∈ wherein during the relaxation of the electroactive polymer it is unloaded during a time interval ∈t wherein the numerical value of the maximum expansion ∈ estimating the maximum wave height h correlating the maximum wave height h