Journal ArticleDOI
Multiple surrogate based optimization of a bidirectional impulse turbine for wave energy conversion
Rameez Badhurshah,Abdus Samad +1 more
TLDR
In this article, a bidirectional impulse turbine was simulated using CFD technique and optimized using multiple surrogates approach to enhance the robustness of the optimization process by using different surrogates such as response surface approximation, radial basis function, Kriging and weighted average surrogate.About:
This article is published in Renewable Energy.The article was published on 2015-02-01. It has received 64 citations till now. The article focuses on the topics: Turbine & Oscillating Water Column.read more
Citations
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Journal ArticleDOI
Metamodeling in Multidisciplinary Design Optimization: How Far Have We Really Come?
TL;DR: The extent to which the use of metamodeling techniques inmultidisciplinary design optimization have evolved in the 25 years since the seminal paper on design and analysis of computer experiments is addressed.
Journal ArticleDOI
Managing computational complexity using surrogate models: a critical review
TL;DR: A qualitative evaluation and a mental model is proposed which is based on quantitative results and findings of authors in the published literature to provide practical guide for researchers and practitioners in industry to choose the most appropriate surrogate model based on incomplete information about an engineering design problem.
Journal ArticleDOI
Improved design of a Wells turbine for higher operating range
TL;DR: In this article, a numerical work relying on design optimization is reported to show the dependency of power extraction capability to the operating range of the turbine, and a surrogate approximation model was constructed to find an optimal design.
Journal ArticleDOI
Shape optimization of a cyclone separator using multi-objective surrogate-based optimization
TL;DR: This paper couples three surrogate models (Kriging, radial basis functions and support vector regression) with the efficient multi-objective optimization (EMO) algorithm to identify a Pareto front of cyclone designs with a minimal number of simulations.
Journal ArticleDOI
Numerical optimization of Wells turbine for wave energy extraction
TL;DR: In this article, a multi-objective optimization of blade sweep for a Wells turbine was performed by solving 3D RANS equations based on k-w SST turbulence model.
References
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Journal ArticleDOI
Wave energy utilization: A review of the technologies
TL;DR: In this article, the development of wave energy utilization since the 1970s is discussed, with a focus on the characterization of the wave energy resource; theoretical background, with especial relevance to hydrodynamics of wave absorption and control; how a large range of devices kept being proposed and studied, and how such devices can be organized into classes; the conception, design, model-testing, construction and deployment into real sea of prototypes.
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Renewable energy strategies for sustainable development
TL;DR: In this paper, the authors discuss the problems and perspectives of converting present energy systems into a 100% renewable energy system based on the case of Denmark, and the conclusion is that such development is possible.
Journal ArticleDOI
Ensemble of surrogates
TL;DR: The utility of an ensemble of surrogate models is extended to identify regions of possible high errors at locations where predictions of surrogates widely differ, and provide a more robust approximation approach.
Journal ArticleDOI
Metamodeling in Multidisciplinary Design Optimization: How Far Have We Really Come?
TL;DR: The extent to which the use of metamodeling techniques inmultidisciplinary design optimization have evolved in the 25 years since the seminal paper on design and analysis of computer experiments is addressed.
Journal ArticleDOI
The likely adverse environmental impacts of renewable energy sources
TL;DR: In this article, the authors evaluate the environmental impacts of major renewable energy sources and come up with the broad conclusion that renewable energies are not the panacea they are popularly perceived to be; indeed in some cases their adverse environmental impacts can be as strongly negative as the impacts of conventional energy sources.