Abstract
In this study, the dynamic response of a multiconnected floating solar panel system with a vertical pontoon were studied under various scenarios. First, a floating solar panel pontoon is modeled by combining nine single-unit vertical cylinders (arranged in parallel, horizontally and vertically, 3 m apart from each other). Each cylinder will be considered a rigid body, and they are connected to each other with a frame, so that they can oscillate together. Each floating solar panel pontoon was connected to a steel pipe, and a hinged connector was attached to the connecting point of each steel pipe, while it was fixed at each pontoon. In this study, as a floating solar panel system, a 10 × 10 system was adopted at a water depth of 50 m. Furthermore, a catenary mooring system with steel wire rope was installed to enhance its station-keeping capability. As an environmental load, wave excitation force, under normal operating and extreme conditions, was considered. To confirm the dynamic behavior of the system, a connector boundary condition sensitivity test was conducted under a 0° heading (west to east). It has been proven that an unexpected dynamic response along the sway, roll, and yaw directions is observed in the hinged connector case, due to the second generated moment caused by the movement of the facilities. Furthermore, judging from extreme simulation results, the larger the external environmental loading, the greater the dynamic response of the system, due to amplified wave excitation forces. Finally, under the multiple mooring line failure scenario, the dynamic response of the system is significantly amplified, due to the loss of mooring tension, except for the roll response.
Highlights
Owing to global economic expansion, several experts expect that energy demand will continue to rise, including oil and gas, in the near future
In this study, a fully coupled multiconnected floating solar panel system with a vertical pontoon model is established, and a numerical simulation is performed to verify the dynamic response of the system
In the hinged B.C model, each floating solar panel system moves independently, due to the moment transmission break, whereas the opposite is true with the fixed B.C model
Summary
Owing to global economic expansion, several experts expect that energy demand will continue to rise, including oil and gas, in the near future Simultaneously, they assert that the global climate crisis, caused by massive fossil fuel consumption, should be controlled [1]. Even though the floating solar panel system is an active research area, to the best of our knowledge, there are no reported studies, with respect to the dynamic behavior of multiconnected floating solar panel systems with vertical pontoon (or cylinder) types, even though vertical pontoon (or cylinder) design has several advantages, such as manufacturing costs reduction and anti-corrosion, due to small, wet surface. In this study, a fully coupled multiconnected floating solar panel system with a vertical pontoon (or cylinder) model is established, and a numerical simulation is performed to verify the dynamic response of the system
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