Faculty Publications
Permanent URI for this communityhttps://idr.nitk.ac.in/handle/123456789/18736
Publications by NITK Faculty
Browse
2 results
Search Results
Item Motion response analysis of floating wind turbine combined with wave energy converter(Springer, 2020) Sai, K.C.; Patil, A.H.; Karmakar, D.The concept of extracting wave energy using wave energy converters (WEC) and wind energy using offshore wind turbines involves high cost of installing and maintenance. To reduce the economic value of the overall project by sharing mooring systems, electrical cables and better use of ocean area, the concept of combining wind turbine with a WEC has come into existence. Using the combined concept of wave and wind energy device, not only the overall project cost reduces but also the power production increases. The present study deals with the coupled dynamic analysis of 5MW offshore floating wind turbine combined with wave energy converter system to study the motion behaviour of combined energy concept under operational conditions using time domain aero-servo-hydro-elastic simulation along with the wave load response analysis. The responses in all 6-DoF are predicted, compared and analysed for different wind speed and wave height. The platform forces and moments are also obtained and the transfer functions for these responses are evaluated using aero-servo-hydro-elastic simulation. Further, a brief comparative study of different combined energy models are performed in details. © Springer Nature Singapore Pte Ltd. 2020.Item Hydrodynamic Performance of Spar-Type Wind Turbine Platform Combined with Wave Energy Converter(Springer Science and Business Media Deutschland GmbH, 2021) Patil, A.H.; Karmakar, D.In the present study, the numerical investigation of 5 MW spar-type floating offshore wind turbine (FOWT) combined with array of four and six cone–cylindrical shaped heaving type point absorber is performed. Hydrodynamic and multibody analysis is carried out for simple spar, spar combined with circular array of four and six wave energy converters. Individual responses for all wave energy converters are obtained and their effect on spar platform is analyzed. The performance of combined wind and wave energy device is studied on analyzing the motion of platform. The influence of array of wave energy converters on hydrodynamic motion responses on spar platform is analyzed. The Response Amplitude Operator (RAO) for all the three platforms is compared and analyzed for the hydrodynamic stability of platform. The present study will be helpful in the design of novel concept of spar combined with circular array of wave energy converters. © 2021, Springer Nature Singapore Pte Ltd.