Results 51 to 60 of about 304 (180)

Investigations on the Effect of Radius Rotor in Combined Darrieus-Savonius Wind Turbine

International Journal of Rotating Machinery, 2018
Renewable sources of energy, abundant in availability, are needed to be exploited with adaptable technology. For wind energy, the wind turbine is very well adapted to generate electricity.
Kaprawi Sahim, Dyos Santoso, Dewi Puspitasari   +2 more
doaj   +1 more source

GOLDEN RATIO SECTIO IN OPTIONAL DESIGN OF MODIFIED SAVONIUS VAWT [PDF]

Journal of Sustainable Energy, 2021
Vertical axis wind turbine (VAWT) is one of the main windmills for wind energy conversion, which can be further divided into lift type and drag type.
ZHENG M., WANG Y., TENG H.P.
doaj  

Reaching New Efficiency Milestones in Low‐Speed Wind Energy Harvesting via Noncontact Stackable Ion‐Gate‐Based Static Discharge Generator

Advanced Energy Materials, Volume 15, Issue 21, June 3, 2025.
This paper reports an ion‐gate‐based static discharge generator with a charge suppliance turbine that can generate high power output with the avalanche effect of Townsend discharge and a noncontact stackable rotational structure. With Savonius wind blade, ion‐gate‐based static discharge generator reaches new efficiency milestones in low‐speed wind ...
Seh‐Hoon Chung, Jiwoong Hur, Seokjin Kim, Kyunghwan Cha, Hanwook Ryu, Zong‐Hong Lin, Dongseob Kim, Jinkee Hong, Jihoon Chung, Sangmin Lee   +9 more
wiley   +1 more source

Performance Analysis and Optimization of Dual‐Row Vertical Axis Wind Turbines With Innovative Hybrid Blades

Energy Science &Engineering, Volume 13, Issue 6, Page 3171-3184, June 2025.
This study introduces an innovative dual‐row vertical axis wind turbine with hybrid blades, integrating J‐shaped and conventional blades to enhance overall performance. Using computational fluid dynamics simulations and Taguchi optimization, the turbine achieved a power coefficient of 0.52 under optimal conditions, significantly outperforming ...
H. Mirzaeian, B. Ghobadian, M. Mirhosseini   +2 more
wiley   +1 more source

Modeling the Dynamics of a Catamaran Driven by a Savonius Rotor and a Propeller

Journal of Computer and Systems Sciences International
The dynamics of a catamaran with a Savonius rotor and a propeller installed on it is considered. Under the action of a stationary wind flow the rotor rotates and transmit it to the the propeller, which creates thrust. As a control, the angle of the catamaran’s course relative to the wind flow is considered. The control task is to move the center of the
Garbuz, M. A., Klimina, L. A., Samsonov, V. A.   +2 more
openaire   +2 more sources

Effect of Free‐Stream Turbulence on the Power Performance and Wake Characteristics of Paired Counter‐Rotating Vertical‐Axis Wind Turbines

Wind Energy, Volume 28, Issue 2, February 2025.
ABSTRACT Vertical‐axis wind turbines (VAWTs) operate in the atmospheric boundary layer and are frequently subjected to turbulent flow. The objective of this study is to investigate the effect of free‐stream turbulence on the power performance and wake characteristics of a pair of counter‐rotating VAWTs.
Ayoub Talamalek, Mark C. Runacres, Tim De Troyer   +2 more
wiley   +1 more source

Optimizing a Novel Wind Turbine for Sub‐Saharan Africa: A Techno‐Economic and Multicriteria Evaluation

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
Wind energy has emerged as a key contributor to the global renewable energy mix, yet much of sub‐Saharan Africa (SSA) remains underutilized due to predominantly low wind speeds and the limitations of conventional horizontal‐axis wind turbines (HAWTs).
Kehinde A. Adeyeye, Nelson Ijumba, Jonathan S. Colton, Amir Afzal   +3 more
wiley   +1 more source

Experimentally Determining the Optimum Design Configuration for Savonius Rotors

Bulletin of JSME, 1986
The Savonius rotor was proposed in the early 1920's. Until now, there has been no systematic work on the optimum design configuration of Savonius rotors. Therefore, in the present work, various model tests were carried out in a wind tunnel, in order to ascertain the optimum design configuration of Savonius rotors.
USHIYAMA, Izumi, NAGAI, Hiroshi, SHINODA, Jinkichi   +2 more
openaire   +3 more sources

Comparative Analysis Among Different Performance Improvement Techniques for Wind Turbines in Terms of Energy and Economy for Small, Medium, and Large‐Scale Applications

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
With a view to finding the best approach to maximize the wind energy harvesting from wind turbines, this research has focused towards assessing the effects of different innovative modifications to wind turbines at different wind speed conditions and comparing them in terms of aerodynamic performance, economy, and environmental impact.
Mim Mashrur Ahmed, Mahadi Hasan Masud, Md. Hasibul Hasan Himel, Mhia Md. Zaglul Shahadat, Mucahit Aydin   +4 more
wiley   +1 more source

Blade force measurement and flow visualization of Savonius rotors.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1985
For the purpose of clarifying the mechanism of rotation of Savonius rotors, ones which have two semicylindrical blades are studied experimentally. The force acting on a blade is measured in a water two tank for both cases where a rotor is at rest and rotated.
SAWADA, Tadashi, NAKAMURA, Masahide, KAMADA, Shin   +2 more
openaire   +3 more sources