Results 31 to 40 of about 487 (88)

Unsteady Interaction Between a Transonic Turbine Stage and Downstream Components

International Journal of Rotating Machinery, 2004
Results from a numerical simulation of the unsteady flow through one quarter of the circumference of a transonic high-pressure turbine stage, transition duct, and low-pressure turbine first vane are presented and compared with experimental data. Analysis
Roger L. Davis, Jixian Yao, John P. Clark, Gary Stetson, Juan J. Alonso, Antony Jameson, Charles W. Haldeman, Michael G. Dunn   +7 more
doaj   +1 more source

Genetic Algorithm‐Driven Analysis of Gravitational Water Vortex Power Plant Runner Performance: A Comparative Study Integrating Experimental and Computational Fluid Dynamics

Energy Science &Engineering, EarlyView.
This study integrates genetic algorithm optimization, CFD simulation, and experimental validation to identify the optimal runner geometry for a gravitational water vortex turbine. The combined approach enhances vortex stability and improves energy conversion efficiency, demonstrating strong agreement between predicted and measured performance ...
Zakaria. A. Mwakitwange, Adam Faraji
wiley   +1 more source

Turbulence‐Intensity Effects on the Aerodynamic Performance of an H‐Type Darrieus Wind Turbine: A URANS Parametric Study

Energy Science &Engineering, EarlyView.
Turbulence intensity from 1% to 25% was parametrically tested on a three‐bladed H‐type Darrieus rotor across five tip speed ratios (TSRs) using two‐dimensional URANS. The optimal TSR proved the most efficient and most robust operating point simultaneously, with Cp losses capped at 5.8% even at TI = 25%. ABSTRACT The effect of inlet turbulence intensity
Aydin Ulus
wiley   +1 more source

Synergistic Effect of Physical Faults and Variable Inlet Guide Vane Drift on Gas Turbine Engine

Machines, 2023
This study presents a comprehensive analysis of the impact of variable inlet guide vanes and physical faults on the performance of a three-shaft gas turbine engine operating at full load.
Waleligne Molla Salilew, Syed Ihtsham Gilani, Tamiru Alemu Lemma, Amare Desalegn Fentaye, Konstantinos G. Kyprianidis   +4 more
doaj   +1 more source

Spacing Effects in Guided Vertical‐Axis Wind Turbine Arrays for Highway Energy Harvesting Under Multi‐Vehicle Wake Conditions

Energy Science &Engineering, EarlyView.
Three‐turbine guided Savonius arrays installed along highway corridors extract up to 697 J under multi‐vehicle wake conditions when spaced 12 rotor diameters apart—68% more than compact arrangements. Guide vanes boost output by 80–120%, and interior turbines respond most strongly to spacing, governing overall array performance. ABSTRACT Highway‐induced
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

Research Progress on Solar Energy Storage and Conversion Technologies for Sustainable Development: Prospects, Challenges, and Future Outlooks

Advanced Energy and Sustainability Research, Volume 7, Issue 10, October 2026.
This review focuses on the potential of solar energy and major solar energy storage technologies and provides a comparative assessment of their thermodynamic performance, storage density, efficiency, operating conditions, technological maturity, and application suitability.
Md. Golam Kibria, S. R. Shajid, Md. Shahriar Mohtasim, Md. Sanowar Hossain, Barun K. Das, Md Shamim Ahamed, Monjur Mourshed   +6 more
wiley   +1 more source

Experimental Analysis of the Effect of Wear Factors on Guide Vane of Hydraulic Turbine

Machines, 2022
In this paper, in order to study the wear of the guide vane of the hydraulic turbine, a test bench was built according to the actual internal flow of the hydraulic turbine of the power station. The value of the wear of the surface of the guide vane after
Xiaoyi Zhao, Yuanjie Peng, Junxiang Yang, Minghui Ren, Xiaobing Liu   +4 more
doaj   +1 more source

Laser Surface Treatment of Nickel‐Alumina Coating for Enhancement of Erosion and Corrosion Resistance of High Speed Steel Vanes

Applied Research, Volume 5, Issue 5, October 2026.
Laser surface treatment was carried out to enhance the performance of Ni‐Al2O3 coatings on HSS substrates. The results revealed improved microstructural features, corrosion resistance and significant reduction in slurry erosion wear with 18 W laser treatment. ABSTRACT The sliding wear between hydraulic vane tip and the inner surface of the cam ring can
Majunath Keshav, Achutarao Bharatish, Sivakumar Solaiachari, Srilatha Rao   +3 more
wiley   +1 more source

Proximity to wind turbines altered plant–pollinator dynamics in prairie and sagebrush ecosystems in Wyoming, USA

Nordic Journal of Botany, Volume 2026, Issue 10, October 2026.
Wind turbines influence several abiotic conditions in the environments they are sited in and may influence the behavior and movement of insect pollinators. It is unknown how operating turbines influence plant–pollinator interactions. To investigate if pollination dynamics could be affected by the presence of wind turbines, we recorded videos of ...
Michelle Weschler, Brenna Martin, Lusha Tronstad   +2 more
wiley   +1 more source

An Investigation of the Performance and Internal Flow of Variable Nozzle Turbines with Split Sliding Guide Vanes

Machines, 2022
In order to effectively weaken the leakage flow and shock intensity of traditional “swing” type guide vanes in a variable nozzle turbine, a new flow control device named the “split sliding guide vane” (SSGV) is studied in the present work.
Dengfeng Yang, Kai Wang, Huaiyu Wang, Qian Zhang, Xinguo Lei, Leon Hu   +5 more
doaj   +1 more source