The Experts below are selected from a list of 84567 Experts worldwide ranked by ideXlab platform

Wei-haur Lam - One of the best experts on this subject based on the ideXlab platform.

  • 2002–2012: 10 Years of Research Progress in Horizontal-Axis Marine Current Turbines
    Energies, 2013
    Co-Authors: Wei-haur Lam
    Abstract:

    Research in marine current energy, including tidal and ocean currents, has undergone significant growth in the past decade. The Horizontal-Axis marine current turbine is one of the machines used to harness marine current energy, which appears to be the most technologically and economically viable one at this stage. A number of large-scale marine current turbines rated at more than 1 MW have been deployed around the World. Parallel to the development of industry, academic research on Horizontal-Axis marine current turbines has also shown positive growth. This paper reviews previous research on Horizontal-Axis marine current turbines and provides a concise overview for future researchers who might be interested in Horizontal-Axis marine current turbines. The review covers several main aspects, such as: energy assessment, turbine design, wakes, generators, novel modifications and environmental impact. Future trends for research on Horizontal-Axis marine current turbines are also discussed.

  • 2002 2012 10 years of research progress in Horizontal Axis marine current turbines
    Energies, 2013
    Co-Authors: Wei-haur Lam
    Abstract:

    Research in marine current energy, including tidal and ocean currents, has undergone significant growth in the past decade. The Horizontal-Axis marine current turbine is one of the machines used to harness marine current energy, which appears to be the most technologically and economically viable one at this stage. A number of large-scale marine current turbines rated at more than 1 MW have been deployed around the World. Parallel to the development of industry, academic research on Horizontal-Axis marine current turbines has also shown positive growth. This paper reviews previous research on Horizontal-Axis marine current turbines and provides a concise overview for future researchers who might be interested in Horizontal-Axis marine current turbines. The review covers several main aspects, such as: energy assessment, turbine design, wakes, generators, novel modifications and environmental impact. Future trends for research on Horizontal-Axis marine current turbines are also discussed.

Singiresu S. Rao - One of the best experts on this subject based on the ideXlab platform.

  • Robust Design of Horizontal Axis Wind Turbines Using Taguchi Method
    Volume 6B: Energy, 2015
    Co-Authors: Singiresu S. Rao
    Abstract:

    The robust design of Horizontal Axis wind turbines, including both parameter and tolerance designs, is presented. A simple way of designing robust Horizontal Axis wind turbine systems under realistic conditions is outlined with multiple design variables, multiple objectives, and multiple constraints simultaneously by using the traditional Taguchi method and its extensions. The performance of the turbine is predicted using the axial momentum theory and the blade element momentum theory. In the parameter design stage, the energy output of the turbine is maximized using the Taguchi method and an extended penalty-based Taguchi method is proposed to solve constrained parameter design problems. Using an appropriate set of tolerance settings of the parameters, the tolerance design problem is formulated so as to yield an economical design while ensuring a minimal variability in the performance of the wind turbine. The present work provides a simple and economical approach for the robust optimal design of Horizontal Axis wind turbines.Copyright © 2015 by ASME

  • Robust Design of Horizontal Axis Wind Turbines Using Taguchi Method
    Journal of Mechanical Design, 2011
    Co-Authors: Singiresu S. Rao
    Abstract:

    The robust design of Horizontal Axis wind turbines, including both parameter design and tolerance design, is presented. A simple way of designing robust Horizontal Axis wind turbine systems under realistic conditions is outlined with multiple design parameters (variables), multiple objectives, and multiple constraints simultaneously by using the traditional Taguchi method and its extensions. The performance of the turbines is predicted using the axial momentum theory and the blade element momentum theory. In the parameter design stage, the energy output of the turbine is maximized using the Taguchi method and an extended penalty-based Taguchi method is proposed to solve constrained parameter design problems. The results of the unconstrained and constrained parameter design problems, in terms of the objective function and constraints are compared. Using an appropriate set of tolerance settings of the parameters, the tolerance design problem is formulated so as to yield an economical design, while ensuring a minimal variability in the performance of the wind turbine. The resulting multi-objective tolerance design problem is solved using the traditional Taguchi method. The present work provides a simple and economical approach for the robust optimal design of Horizontal Axis wind turbines.

Teresa Zielińska - One of the best experts on this subject based on the ideXlab platform.

  • Seismic Response Study of the Tower of a 3 Rotors- Horizontal Axis Wind Turbine
    2019 IEEE International Conference on Mechatronics and Automation (ICMA), 2019
    Co-Authors: Linping Lu, Yiping Wang, Weimin Ge, Enhong Xing, Teresa Zielińska
    Abstract:

    The MRs-HAWT (Multiple Rotors-Horizontal Axis Wind Turbine) which installed three 2kW HAWTs was the research subject. For the study of the tower performance the appropriate simplification was applied, and the finite element model was constructed. After that, the verification of the model was carried out by experiments. Transient response analysis was applied to study the dynamics of the tower when the El Centro earthquake wave applied, the comparative study were implemented for the 3-rotor and the single-rotor HAWTs having the same rated capacity. The data gathered in the key points indicate that the seismic performance of the 3Rs-HAWT (3 Rotors-Horizontal Axis Wind Turbine) is better than that of the single rotor HAWT.

Linping Lu - One of the best experts on this subject based on the ideXlab platform.

  • Seismic Response Study of the Tower of a 3 Rotors- Horizontal Axis Wind Turbine
    2019 IEEE International Conference on Mechatronics and Automation (ICMA), 2019
    Co-Authors: Linping Lu, Yiping Wang, Weimin Ge, Enhong Xing, Teresa Zielińska
    Abstract:

    The MRs-HAWT (Multiple Rotors-Horizontal Axis Wind Turbine) which installed three 2kW HAWTs was the research subject. For the study of the tower performance the appropriate simplification was applied, and the finite element model was constructed. After that, the verification of the model was carried out by experiments. Transient response analysis was applied to study the dynamics of the tower when the El Centro earthquake wave applied, the comparative study were implemented for the 3-rotor and the single-rotor HAWTs having the same rated capacity. The data gathered in the key points indicate that the seismic performance of the 3Rs-HAWT (3 Rotors-Horizontal Axis Wind Turbine) is better than that of the single rotor HAWT.

S W Boyd - One of the best experts on this subject based on the ideXlab platform.

  • application of bend twist coupled blades for Horizontal Axis tidal turbines
    Renewable Energy, 2013
    Co-Authors: R F Nichollslee, S R Turnock, S W Boyd
    Abstract:

    The blades of a Horizontal Axis tidal turbine are required to operate in a harsh subsea environment over a long life cycle with minimal need for maintenance. The concept of using passively adaptive, bend-twist coupled spars for Horizontal Axis tidal turbine blades has been identified as a potential method of improving energy capture. In this work a structural analysis is coupled with a fluid dynamic model to perform a full fluid-structure interaction analysis of a range of composite, bend-twist coupled blades. Blade element momentum theory is used to assess the presence of stall and corroborate the performance data attained from the fluid analysis. This paper discusses the individual analyses and the manner in which they are coupled. Several example problems were analysed using the design tool. The results compare well to the preliminary studies and indicate that a decrease of up to 12% in thrust and an increase of up to 5% in power capture could be achieved through the use of properly designed, bend-twist coupled blades.