Results 31 to 40 of about 124,957 (333)
Effect of Savonius blade height on the performance of a hybrid Darrieus-Savonius wind turbine
Journal of Mechanical Engineering and Sciences, 2019 A vertical hybrid turbine commonly consists of a Darrieus and Savonius rotor where the Savonius is inside Darrieus turbine. This paper describes the experimental study of hybrid Darrieus-Savonius wind turbines by variation in Savonius blade height.
Dewi Puspitasari, Kaprawi Sahim
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Influence of blade number on performance of multistage hydraulic turbine in turbine mode
Energy Science & Engineering, 2022 Compared with the traditional reverse multistage pump as hydraulic turbine, hydraulic turbine in turbine mode (T‐type turbine) with low specific speed has higher single‐stage energy head, which can effectively reduce stages and increase the stability ...
Lihong Zhang +4 more
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Blade design and operating experience on the MOD-OA 200 kW wind turbine at Clayton, New Mexico [PDF]
, 1979 Two 60 foot long aluminum wind turbine blades were operated for over 3000 hours on the MOD-OA wind turbine. The first signs of blade structural damage were observed after 400 hours of operation. Details of the blade design, loads, cost, structural damage,
Linscott, B. S., Shaltens, R. K.
core +1 more source
Materials for Wind Turbine Blades: An Overview [PDF]
Materials, 2017 A short overview of composite materials for wind turbine applications is presented here. Requirements toward the wind turbine materials, loads, as well as available materials are reviewed. Apart from the traditional composites for wind turbine blades (glass fibers/epoxy matrix composites), natural composites, hybrid and nanoengineered composites are ...
Leon Mishnaevsky +5 more
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Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
A study on the matching of constraint between steam turbine blade and laboratory specimens
Advances in Mechanical Engineering, 2020 The matching of constraint between laboratory specimens and actual cracked structures is a key problem of the accurate structure integrity assessment.
Jie Yang, Yuman Liu, Haofeng Chen
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Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Design of Archimedes Screw Turbine by Multi-step Selections on Parameter Pitch Distance, Blade Number, and Blade Angle [PDF]
International Journal of Mathematical, Engineering and Management SciencesOne of the water turbines called an Archimedes screw turbine (ASTs) is appropriate to run in a low head of just less than 5 m and works at a wide range of discharge operations.
Sarjito +5 more
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On the Flow through Turbine Blades
Transactions of the Japan Society of Mechanical Engineers, 1947 この論文は蒸汽夕ービン翼の間の流れを理論的に計算した結果で,この種の問題に空氣力學的方法を導入すべく着手した最初の計算である.故にまずタービン翼列の流れ,それにより翼のうける力等の一般的性質を知るのを目的とし,そのために計算を能う限り簡單にした.對稱翼で完全流體の二次元流れと假定したのもそのためである.したがつて得られた計算結果は夕ービン翼列の流れの極く大略を示すものであつて,さらに精しい理論的計算法,各種形状の翼の問題,粘性の影響等についてはつぎの機會に述べたいと思う.
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Advanced Engineering Materials, EarlyView.Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan +5 more
wiley +1 more source