Results 41 to 50 of about 3,812 (230)

Exhalation‐Driven Mask‐Valve‐Integrated Triboelectric Nanogenerator with Amplified Output Current

Small Structures, Volume 6, Issue 12, December 2025.
An exhalation‐driven mask‐valve‐integrated triboelectric nanogenerator (EM‐TENG) generates high output current and power with low impedance at low airflow speeds within a compact size of 3.87 cm3, and with an optimized design, it is not affected by moisture.
Sujung Kang, Deokjae Heo, Seh‐Hoon Chung, Myunghwan Song, Sunghan Kim, Youngho Jin, Jinkee Hong, Sangmin Lee   +7 more
wiley   +1 more source

Coeficientes de potencia en molinos Savonius

Ingeniería e Investigación, 1985
La mayoría de los trabajos en los Molinos de Viento tipo savonius se han realizado experimentalmente por la dificultad de encontrar una expresión teórica que relacione la máxima eficiencia con las características del modelo. Todos los trabajos tienden a encontrar una forma de los rotores que mejoren su eficiencia o coeficiente de potencia.
openaire   +4 more sources

Efektifitas Kemiringan Deflektor Kincir Air Savonius

G-Tech: Jurnal Teknologi Terapan, 2023
Energi terbarukan merupakan energi yang terdapat dari alam, Indonesia memiliki sumber energi terbarukan yang jumlahnya berlimpah salah satunya yang berpotensi adalah enrgi air. Energi air dapat dimanfaatkan dengan menggunakan kincir savonius, kincir juga dapat dioptimalkan dengan menambahkan pengarah aliran air (Deflektor). Pada penelitian ini diunakan
Angga Andrian Kusdiat, Mohammad Alexin Putra   +1 more
openaire   +1 more source

Enhancing the Performance of Savonius Wind Turbines: A Review of Advances Using Multiple Parameters

Energies
The need to globalize and implement the fourth industrial revolution has led to increased interest in research on renewable energy harvesting equipment.
Anesu Godfrey Chitura, P. Mukumba, N. Lethole   +2 more
semanticscholar   +1 more source

Performance Improvement of Hybrid Vertical Axis Wind Turbines Equipped With J‐Shaped Blades

Energy Science &Engineering, Volume 13, Issue 9, Page 4433-4444, September 2025.
This study presents a novel hybrid vertical axis wind turbine, utilizing J‐shaped blades in Darrieus rotor. The proposed configuration shows the potential of J‐shaped blades in improving the overall performance of hybrid rotors. ABSTRACT Vertical axis wind turbines (VAWTs) are emerging as a promising solution for urban wind energy harvesting, owing to ...
Narges Kashani, Mojtaba Mirhosseini, Rouhollah Ahmadi, Hamidreza Mirzaeian   +3 more
wiley   +1 more source

Enhancing Savonius Vertical Axis Wind Turbine Performance: A Comprehensive Approach with Numerical Analysis and Experimental Investigations

Energies, 2023
Small-scale vertical-axis wind power generation technologies such as Savonius wind turbines are gaining popularity in suburban and urban settings. Although vertical-axis wind turbines (VAWTs) may not be as efficient as their horizontal-axis counterparts,
K. Al-Gburi, F. Alnaimi, B. A. Al-quraishi, E. Tan, Ali Kamil Kareem   +4 more
semanticscholar   +1 more source

Computational fluid dynamics on a newly developed Savonius rotor by adding sub-buckets for increase of the tip speed ratio to generate higher output power coefficient

Journal of Fluid Science and Technology, 2020
The output power coefficient of the Savonius rotor needs to be improved in attaining better practical applications. Up until now, to improve the output power coefficient, the newly developed Savonius rotor with semi-elliptical sub-buckets has been ...
Takanori MATSUI, Tomohiro FUKUI, Koji MORINISHI   +2 more
doaj   +1 more source

Meteorological Assessment of Vertical Axis Wind Turbine Energy Microgeneration Potentials Across Two Swiss Cities Located in Complex Terrain

Wind Energy, Volume 28, Issue 8, August 2025.
ABSTRACT Wind energy is the most mature renewable energy technology; however, its exploitation in cities is often met with skepticism. Thanks to their ability to operate at low wind speed regardless of direction, vertical axis wind turbines (VAWTs) offer an attractive opportunity for wind energy harvesting in cities. However, limited evidence exists on
Aldo Brandi, Gabriele Manoli
wiley   +1 more source

Performance of Double-step Savonius Rotor for Environmentally Friendly Hydraulic Turbine

Journal of Fluid Science and Technology, 2008
The aim of this investigation is to develop an environmentally friendly nano-hydraulic turbine. Three type models of Savonius rotor are constructed and tested in a water tunnel to improve and clarify the power performance.
Miyoshi NAKAJIMA, Shouichiro IIO, Toshihiko IKEDA   +2 more
doaj   +1 more source

Performance of Savonius Rotor for Environmentally Friendly Hydraulic Turbine

Journal of Fluid Science and Technology, 2008
The aim of this investigation was to develop an environmentally friendly nano-hydraulic turbine. A model of a two-bucket Savonius type hydraulic turbine was constructed and tested in a water tunnel to arrive at an optimum installation condition.
Miyoshi NAKAJIMA, Shouichiro IIO, Toshihiko IKEDA   +2 more
doaj   +1 more source