A NUMERICAL INVESTIGATION OF A TLP SYSTEM

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2022-5-06

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Koç, Melodi Neşe

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Renewable energy is becoming a popular research topic over the last decades. The floating wind turbine system consists of a typical wind turbine with a platform that the tower of the turbine is implemented. One of the popular floating systems is known as Tension Leg Platforms (TLPs). In this study, TLP is chosen due to the limiting nature of the system in terms of heave, roll and pitch motions. Due to the complexity of the system, coupling analysis of TLPs become important. In this thesis, a benchmark study in which a hydrodynamic analysis was carried out with SIMO, RIFLEX and WAMIT was taken as reference, and similar hydrodynamic analysis were carried out with ANSYS AQWA and HAMS. Fatigue, Aerodynamics, Structures and Turbulence (FAST) is one of the widely used open source code in order to carry out hydro, aero, servo, elastic coupling analysis of offshore wind turbine systems. FAST is used to analyze the TLP system, in this thesis. Three TLP designs are modeled and numerical calculations are performed under realistic environmental conditions in this thesis. Two of the six degree of motions, tendon tensions and natural periods are presented. The results of the three designs are compared with each other. Results of benchmark study and this thesis are compared and elucidate apparent similarity.

Subject Keywords

Offshore Renewable Energy, Offshore Wind Energy, Tension Leg Platform Wind Turbine, Numerical Modeling

URI

https://hdl.handle.net/11511/97866

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

M. N. Koç, “A NUMERICAL INVESTIGATION OF A TLP SYSTEM,” M.S. - Master of Science, Middle East Technical University, 2022.