Results 21 to 30 of about 1,779 (201)

Research on the aerodynamic characteristics of a lift drag hybrid vertical axis wind turbine

Advances in Mechanical Engineering, 2016
Compared with a drag-type vertical axis wind turbines, one of the greatest advantages for a lift-type vertical axis wind turbines is its higher power coefficient ( C p ).
Xiaojing Sun, Yajun Chen, Yang Cao, Guoqing Wu, Zhongquan Zheng, Diangui Huang   +5 more
doaj   +1 more source

Structural optimization design of novel Senegal vertical axis wind turbine [PDF]

Journal of Hebei University of Science and Technology
Aiming at the problem that the wind energy utilization of vertical axis wind turbines is slightly lower than that of horizontal axis wind power,a new wind turbine based on Senegalese (Senegal) type wind turbine was proposed. Firstly, the curvature of the
Zheng LI, Long ZHAO, Jie ZHANG, Qilong XIE, Hexu SUN   +4 more
doaj   +1 more source

The influence of the number of rotor blades on the performance of orthopter wind turbine

MATEC Web of Conferences, 2018
This paper describes the influence of the number of rotor blades the performance of the orthopter wind turbine. The orthopter wind turbine is combination between a drag-type and a lift-type vertical axis wind turbine which each blade combines a rotating ...
Firdaus Rachmat, Kiwata Takahiro, Nagao Koji, Kono Takaaki   +3 more
doaj   +1 more source

Toward the Coevolution of Novel Vertical-Axis Wind Turbines [PDF]

IEEE Transactions on Evolutionary Computation, 2013
The production of renewable and sustainable energy is one of the most important challenges currently facing mankind. Wind has made an increasing contribution to the world's energy supply mix, but still remains a long way from reaching its full potential.
Richard John Preen, Larry Bull
openaire   +4 more sources

Performance Enhancement of a Darrieus Vertical Axis Wind Turbine using Divergent Ducting System

Tikrit Journal of Engineering Sciences, 2018
Ducting system is an effective way to potentially augment the performance of wind turbine for applications in building architectures. This paper is aimed to study one of the possible enhancement method of the vertical axis wind turbine performance. It is
Abdullateef A. Jadallah, Sahar R. Farag, Jinan D. Hamdi   +2 more
doaj   +3 more sources

Experimental Investigation of Aerodynamic Characteristics for Three Typical Micro Wind Turbines at Low Reynolds Number

Journal of Applied Fluid Mechanics, 2020
Onsite utilization of wind energy in the urban environment is an effective solution to environmental protection and energy security. The typically micro wind turbines, including Savonius vertical axis wind turbine, H-type vertical axis wind turbine and ...
J. Y. Zhu, L. Zhang, Q. L. Qu, P. Q. Liu
doaj  

Influences of some parameters on the performance of a small vertical axis wind turbine

Renewable Energy and Environmental Sustainability, 2016
The effects of various parameters on the performance of a straight bladed vertical axis wind turbine, using the vortex model, have been numerically investigated. A vortex model has been used to evaluate the performance of a vertical axis wind turbine, by
Dumitrache Alexandru, Frunzulica Florin, Dumitrescu Horia, Suatean Bogdan   +3 more
doaj   +1 more source

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, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

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, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Aerodynamic shape optimization of a vertical-axis wind turbine with effect number of blades

Dyna, 2022
Our research consists of the experimental study of the vertical wind turbine of form H. The study represents the effect of the number of blades in the variation of the number of rotations of the vertical wind turbine, the speed ratio, torque, the power ...
Foued Chabane, Ali Arif, Mohamed Aymene Barkat   +2 more
doaj   +1 more source