Hydraulic investigations of a “tapered channel” model of a wind-wave energy converter

1995 ◽  
Vol 29 (9) ◽  
pp. 505-514
Author(s):  
V. V. Volshanik ◽  
A. L. Zuikov ◽  
T. K. D. Tennakoonge ◽  
B. E. Monakhov
Keyword(s):  
Wave Energy ◽  
Channel Model ◽  
Wind Wave ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
Tapered Channel

scholarly journals A Novel Hybrid Wind-Wave Energy Converter for Jacket-Frame Substructures

Energies ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 637 ◽  
Author(s):  
Carlos Perez-Collazo ◽  
Deborah Greaves ◽  
Gregorio Iglesias
Keyword(s):  
Wave Energy ◽  
Wind Wave ◽  
Wave Energy Converter ◽  
Energy Converter

scholarly journals Monopile-mounted wave energy converter for a hybrid wind-wave system

2019 ◽  
Vol 199 ◽  
pp. 111971 ◽  
Author(s):  
C. Perez-Collazo ◽  
R. Pemberton ◽  
D. Greaves ◽  
G. Iglesias
Keyword(s):  
Wave Energy ◽  
Wind Wave ◽  
Wave Energy Converter ◽  
Wave System ◽  
Energy Converter

Long-Term Stochastic Dynamic Analysis of a Combined Floating Spar-Type Wind Turbine and Wave Energy Converter (STC) System for Mooring Fatigue Damage and Power Prediction

2014 ◽  
Author(s):  
Nianxin Ren ◽  
Zhen Gao ◽  
Torgeir Moan
Keyword(s):  
Wind Turbine ◽  
Fatigue Damage ◽  
Wave Energy ◽  
Wind Wave ◽  
Wave Energy Converter ◽  
Force Model ◽  
Stochastic Dynamic ◽  
Energy Converter ◽  
Short Term

In this work, a combined concept called Spar-Toru-Combination (STC) involving a spar-type floating wind turbine (FWT) and an axi-symmetric two-body wave energy converter (WEC) is considered. From the views of both long-term fatigue damage prediction of the mooring lines and the annual energy production estimation, a coupled analysis of wind-wave induced long-term stochastic responses has been performed using the SIMO-TDHMILL code in the time domain, which includes 79200 one-hour short term cases (the combination of 22 selected mean wind speeds * 15 selected significant wave heights * 12 selected spectral peak wave periods * 20 random seeds). The hydrodynamic loads on the Spar and Torus are estimated using potential theory, while the aerodynamic loads on the wind rotor are calculated by the validated simplified thrust force model in the TDHMILL code. Considering the long-term wind-wave joint distribution in the northern North Sea, the annual fatigue damage of the mooring line for the STC system is obtained by using the S-N curve approach and Palmgren-Miner’s linear damage hypothesis. In addition, the annual wind and wave power productions are also obtained by using hourly mean output power for each short-term condition and the joint wind-wave distribution.

A study on modeling of a hybrid wind wave energy converter system

2016 ◽  
Author(s):  
Tri Dung Dang ◽  
Cong Binh Phan ◽  
Hoai Vu Anh Truong ◽  
Chau Duy Le ◽  
Minh Tri Nguyen ◽  
...  
Keyword(s):  
Wave Energy ◽  
Wind Wave ◽  
Wave Energy Converter ◽  
Energy Converter

scholarly journals Analytical Cost Modeling for Co-Located Wind-Wave Energy Arrays

2018 ◽  
Author(s):  
Caitlyn Clark ◽  
Bryony DuPont
Keyword(s):  
Wave Energy ◽  
Wind Wave ◽  
Synergistic Effects ◽  
Cost Model ◽  
Indirect Costs ◽  
Wave Energy Converter ◽  
Offshore Wind ◽  
Energy Converter ◽  
Energy Technologies ◽  
Future Work

Offshore wind and wave energy are co-located resources, and both the offshore wind and wave energy industries are driven to reduce costs while maintaining or increasing power production within developments. Due to the maturity of offshore wind technology and continued growth of both offshore floating wind and wave energy converter (WEC) technology, there is new opportunity within the offshore renewable energy sector to combine wind and wave technologies in the same leased ocean space through co-located array development. Combining wind and wave energy technologies through co-location is projected to have synergistic effects that reduce direct and indirect costs for developments. While several of these effects have been quantified, many have not been related to cost, and there is currently no cost model that incorporates all of these effects. Further, in areas where fixed-bottom offshore wind structures are infeasible, floating offshore wind platforms could provide access to plentiful resource further offshore. In this paper, we develop a cost model that represents co-located array developments, particularly for floating offshore wind and wave energy converter technology, and identify research gaps and uncertainties to be minimized in future work.

Proof of Concept of a Novel Hybrid Wind-Wave Energy Converter

2018 ◽  
Author(s):  
Carlos Perez-Collazo ◽  
Deborah Greaves ◽  
Gregorio Iglesias
Keyword(s):  
Wave Energy ◽  
Wind Wave ◽  
Physical Modelling ◽  
Wave Energy Converter ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Proof Of Concept ◽  
Energy Converter ◽  
Wave Energy Converters ◽  
The University

In a global scenario of climate change and raising threats to the marine environment, a sustainable exploitation of offshore wind and wave energy resources is not only crucial for the consolidation of both industries, but also to provide a reliable and accessible source of renewable energy. In this context, and with the shared challenge for both industries to reduce costs, the combination of wind and wave technologies has emerged. In particular, this research deals with a novel hybrid system that integrates an oscillating water column, wave energy converter, with an offshore wind turbine substructure. In this paper, the novel hybrid wind-wave energy converter is studied in a three steps process. First, assessing a preliminary concept by means of a concept development methodology for hybrid wind-wave energy converters. Secondly, an OWC WEC sub-system is defined, on the basis of the results from the first step. Finally, the proof of concept of the WEC sub-system is carried out by means of a physical modelling test campaign at the University of Plymouth’s COAST laboratory.

scholarly journals Wind–Wave Coupling Effect on the Dynamic Response of a Combined Wind–Wave Energy Converter

2021 ◽  
Vol 9 (10) ◽  
pp. 1101
Author(s):  
Jinghui Li ◽  
Wei Shi ◽  
Lixian Zhang ◽  
Constantine Michailides ◽  
Xin Li
Keyword(s):  
Renewable Energy ◽  
Dynamic Response ◽  
Wave Energy ◽  
Wind Wave ◽  
Renewable Energy Sources ◽  
Wave Energy Converter ◽  
Coupled Analysis ◽  
Energy Converter ◽  
Combined System ◽  
Energy Devices

There is a huge energy demand from offshore renewable energy resources. To maximize the use of various renewable energy sources, a combined floating energy system consisting of different types of energy devices is an ideal option to reduce the levelized cost of energy (LCOE) by sharing the infrastructure of the platform and enhancing the power production capacity. This study proposed a combined concept of energy systems by combing a heave-type wave energy converter (WEC) with a semisubmersible floating wind turbine. In order to investigate the power performance and dynamic response of the combined concept, coupled aero-hydro-servo-elastic analysis was carried out using the open-source code F2A, which is based on the coupling of the FAST and AQWA tools by integrating all the possible environmental loadings (e.g., aerodynamic, hydrodynamic). Numerical results obtained by AQWA are used to verify the accuracy of the coupled model in F2A in predicting dynamic responses of the combined system. The main hydrodynamic characteristics of the combined system under typical operational conditions were examined, and the calculated responses (motions, mooring line tension and produced wave power) are discussed. Additionally, the effect of aerodynamic damping on the dynamic response of the combined system was examined and presented. Moreover, a second fully coupled analysis model was developed, and its response predictions were compared with the predictions of the model developed with F2A in order for the differences of the calculated responses resulted by the different modeling techniques to be discussed and explained. Finally, the survivability of the combined concept has been examined for different possible proposed survival modes.

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