A case study of a novel ducted composite material marine current turbine

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Jifeng Wang ◽  
Blake Gower ◽  
Norbert Müller
Keyword(s):  
Composite Material ◽  
High Strength ◽  
Numerical Approach ◽  
Filament Winding ◽  
Advanced Composite ◽  
Advanced Composite Materials ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Current Turbine

AbstractAdvanced composite materials are widely used as marine current turbines due to their high strength-to-weight ratios and excellent resistance to corrosion. A novel manufacturing approach similar to filament winding has been developed and is able to produce the Composite Material Marine Current Turbines (CMMCTs) that have significant advantages over traditional designs. This paper presents numerical results investigating the performance of ducted CMMCTs. The numerical approach was performed using CFD in a free stream of water with various hydrodynamic flow conditions. The investigation results provide an insight into the hydrodynamic design and operation of CMMCTs.

Preliminary Analysis of the Application of Composite Material in Marine Current Turbine

2011 ◽  
Author(s):  
Jifeng Wang ◽  
Yan Liu ◽  
Yanqiu Yu ◽  
Norbert Mu¨ller
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Preliminary Analysis ◽  
High Strength ◽  
Advanced Composite Materials ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Water Turbine ◽  
Water Turbines ◽  
Current Turbine

Advanced composite materials are broadly used because of their high strength to weight ratios and high corrosion resistance. A wound composite material wheel has been developed and is intended to be used for many purposes. One of these applications is marine current turbine. A major problem influencing the design and operation of water turbines is fatigue. Another challenge that water turbines have to face is that the turbines must be able to withstand large forces due to the increase in flow velocity. Considering these factors, implementation of composite materials in water turbine is explained in this paper. This novel design pattern of composite material marine current turbine shows many advantages compared to traditional turbines. This paper presents the preliminary analysis of the application of composite material in marine current turbine.

Numerical Study on Composite Material Marine Current Turbine Under Various Hydrodynamic Conditions

2011 ◽  
Author(s):  
Jifeng Wang ◽  
Janusz Piechna ◽  
Yunfei Qu ◽  
Norbert Mu¨ller
Keyword(s):  
Composite Material ◽  
Free Stream ◽  
Numerical Study ◽  
Design Method ◽  
Numerical Approach ◽  
Filament Winding ◽  
Flow Conditions ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Water Turbine

A novel manufacturing approach similar to filament winding has been developed and automated and is able to produce the Composite Material Marine Current Turbines (CMMCT), which have significant advantages over traditional designs. This paper presents numerical results to investigate the performance of these turbines. The numerical approach was performed using Computational Fluid Dynamics (CFD) in a free stream of water with various hydrodynamic flow conditions. Static torque and extracted power are calculated at different rotating speeds in a free stream with various hydrodynamics flow conditions. The calculated results will provide a fundamental understanding of the impeller as a water turbine, and this design method is used to shorten the design process and improve the water turbine’s performance.

Numerical investigation on composite material marine current turbine using CFD

2011 ◽  
Vol 1 (4) ◽  
Author(s):  
Jifeng Wang ◽  
Norbert Müller
Keyword(s):  
Composite Material ◽  
Free Stream ◽  
Design Method ◽  
Numerical Approach ◽  
Filament Winding ◽  
Power Coefficient ◽  
Flow Conditions ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Water Turbine

AbstractA novel manufacturing approach similar to filament winding has been developed and automated and is able to produce the Composite Material Marine Current Turbines (CMMCT), which have significant advantages over traditional designs. This paper presents numerical results to investigate the performance of these turbines. The numerical approach was performed using Computational Fluid Dynamics (CFD) in a free stream of water with various hydrodynamic flow conditions. Static torque, extracted power and power coefficient were calculated at different rotating speeds in a free stream with various hydrodynamics flow conditions. The power coefficient of CMMCT was compared to that of traditional current turbines. The calculated results will provide a fundamental understanding of the impeller as a water turbine, and this design method is used to shorten the design process and improve the water turbine’s performance.

A Novel Design and Preliminary Investigation of Composite Material Marine Current Turbine

2011 ◽  
Vol 58 (4) ◽  
pp. 355-366 ◽  
Author(s):  
Jifeng Wang ◽  
Janusz Piechna ◽  
Norbert Müller
Keyword(s):  
Composite Material ◽  
Sea Water ◽  
Material Selection ◽  
Preliminary Investigation ◽  
Filament Winding ◽  
Power Coefficient ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Current Turbine ◽  
Novel Design

A Novel Design and Preliminary Investigation of Composite Material Marine Current TurbineA high performance and light-weight wound composite material wheel has been developed and is intended to be used for many purposes. One of these applications is marine current turbine (MCT). Traditionally, major problems influencing the design and operation of MCTs are fatigue, cavitation and corrosion due to the sea water. Considering these factors, implementation of composite materials, especially Kevlar fiber/epoxy matrix, in MCTs is explained in this paper. This novel design pattern of composite material marine current turbine (CMMCT) shows many advantages compared to conventional turbines. This paper investigated several factors which should be considered during this novel turbine design process such as the composite material selection, filament winding of composite wheel and turbine's structural and cavitation analysis. The power coefficient of CMMCT by using CFD is also obtained and the experimental facilities for testing CMMCT in a water towing tank are briefly described.

Performance Analysis of Diffuser-Augmented Composite Marine Current Turbine Using CFD

2011 ◽  
Author(s):  
Jifeng Wang ◽  
Janusz Piechna ◽  
Blake Gower ◽  
Norbert Mu¨ller
Keyword(s):  
Composite Material ◽  
Technical Performance ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Flow Through ◽  
Current Turbine ◽  
Wound Composite ◽  
Insight Into ◽  
Extracted Power ◽  
Horizontal Axis Turbine

A wound composite material wheel has been developed and is intended to be used for many purposes. One of these applications is marine current turbine. Diffuser-augmented turbines are capable of concentrating the energy in water. If a diffuser shaped shroud encloses a conventional horizontal axis turbine, the low pressure at the exit of the diffuser draws a larger mass flow through the turbine. This permits more power to be extracted from the water. In this paper, numerical analysis of a diffuser-augmented composite material marine current turbine (CMMCT) is developed and compared with a conventional bare turbine. The CFD results show that the extracted power of a diffuser-augmented CMMCT can be 5 times larger than the power extracted by a bare turbine of the same turbine area. The results of the analysis provide an insight into the hydrodynamic design and operation of a diffuser-augmented turbine in order to shorten the design period and improve technical performance.

Design optimization of a marine current turbine having winglet on blade

2021 ◽  
Vol 239 ◽  
pp. 109877
Author(s):  
Murali Kunasekaran ◽  
Shin Hyung Rhee ◽  
Nithya Venkatesan ◽  
Abdus Samad
Keyword(s):  
Design Optimization ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Current Turbine

scholarly journals Composite Materials and Their Fiber Reinforcement Technology in Aerospace Field

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Kailin Zhou
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Research And Development ◽  
Carbon Fibers ◽  
Fiber Reinforcement ◽  
Space Structures ◽  
Advanced Composite ◽  
Advanced Composite Materials ◽  
Composites Materials ◽  
Definition Of

The need to reduce the overall weight of aeronautical and space structures while preserving or even improving their performances make the research and development in the field of advanced composite materials necessary for the advancement of aerospace technologies. This paper provides an overview of composite materials and their fiber reinforcement technology in aerospace field. We discuss the reasons for aircraft manufacturers and airlines to use composites and illustrate the definition of composite material. Then, we list the advantages and disadvantage of composite materials and cite different fiber reinforcement technologies of carbon fibers, aramid fiber, UHMWPE, etc. At last, we summarize the present and future applications of composites materials in aerospace and other civil fields. A conclusion is drawn that in the future, composite materials are set for their development, while continually decreasing its costs is still an important task.

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