Research and concept design of wave energy converter on ocean squid jigging ship

Wave power capture applied on a squid jigging ship is assessed in this paper; this would decrease the operating cost of ships and reduce carbon emissions. Firstly, the history of wave energy devices and wave energy generation on ships are briefly reviewed. Then, a new wave energy device on an ocean squid jigging ship is designed. The linear mathematical system model of the device, and WAMIT software are used to calculate wave energy captured. The floating bodies of the device is designed to take advantage of resonance. By comparing wave capture width ratio of the float with arm hinged on the ship, it is found that wave capture width ratio of the device is highest when the arm length is half a wavelength. The numerical method is validated by experimental tests which are presented in details from setup, data treatment to wave energy capture ratio calculated. Based on a resonance criterion, 20 wave energy device layouts of the ocean squid jigging ship are designed. From numerical simulation the optimum radius of the floating body is 2 m, and the maximum annual average power among these devices is 136 kW at Northwest Pacific fishery ground, which can provide about 10 % of the power consumption for the ocean squid jigging ship.

Automated summary

This paper assesses the application of wave power capture on a squid jigging ship, aiming to decrease operating costs and reduce carbon emissions. It provides a brief history of wave energy devices and generation on ships, and proposes a new wave energy device specifically designed for an ocean squid jigging ship. Through numerical simulations and experimental tests, the study analyzes the wave energy captured and designs 20 layout options for the device. The optimum radius is found to be 2 m, with a maximum annual average power of 136 kW, which can supply about 10% of the power consumption for the squid jigging ship.