Results 31 to 40 of about 1,567 (162)

Experimental research regarding the performance of small axial turbines [PDF]

INCAS Bulletin, 2013
This paper continues research of the authors and presents some theoretical aspects regarding the maximum power extract from the wind turbines, the optimal incidence angle, the best twisting of the blade and experimental research done in the laboratory of
Sanda BUDEA, Mircea Dimitrie CAZACU
doaj   +1 more source

Coupled Effect of Expansion Ratio and Blade Loading on the Aerodynamics of a High-Pressure Gas Turbine

Applied Sciences, 2017
The need of a continuous improvement in gas turbine efficiency for propulsion and power generation, as well as the more demanding operating conditions and power control required to these machines, still ask for great efforts in the design and analysis of
Paolo Gaetani, Giacomo Persico, Andrea Spinelli   +2 more
doaj   +1 more source

A comparison of axial turbine loss models for air, sCO2 and ORC turbines across a range of scales

International Journal of Thermofluids, 2022
Loss models are used to evaluate the aerodynamic performance of axial turbines at the preliminary design stage. The commonly used loss models were derived for air and steam turbines and have not been sufficiently investigated for turbines working with ...
Salma I. Salah, Martin T. White, Abdulnaser I. Sayma   +2 more
doaj   +1 more source

Evaluating a Meanline Model for Partially Admitted Axial Turbines Operating in Organic Rankine Cycles: Extensive Experimental Validation with Multiple Working Fluids and Mixtures

Energies
This study aims to evaluate the robustness of the well proved Aungier meanline model, originally developed for air and steam turbines, on Organic Rankine Cycles (ORC) turbines.
Robin Gautier, Nicolas Tauveron
doaj   +1 more source

A Multi-Parameter Iterative Design-Correction Method and Performance Analysis for sCO₂ Axial Turbine Stages

Applied Sciences
To facilitate accurate physical interpretation and representation of various design concepts for supercritical carbon dioxide (sCO2) axial turbines and to improve both the efficiency and accuracy of their thermodynamic design, two conceptual design ...
Luhan Yin, Lei Zhang, Yuang Shi, Luotao Xie, Zichun Yang   +4 more
doaj   +1 more source

Preliminary Design Method and Performance Analysis of Small-Scale Single-Stage Axial Turbine for Supercritical CO₂ Applications

Energies
The supercritical carbon dioxide (sCO2) Brayton cycle has advantages such as a compact system and high energy density. Axial turbines, the key component of the cycle, have lower rotational speeds, pressure ratios and engineering difficulties compared to ...
Yumeng Han, Yongqing Xiao, Bingkun Ma, Yueming Yang, Ziang Kong, Xinying Liu, Jianhui Qi   +6 more
doaj   +1 more source

Axial Turbine Performance Enhancement by Specific Fluid Injection

Aerospace, 2023
Extensively used in modern gas turbine engines in various applications, ranging from aerospace, marine and terrestrial propulsion to power generation and gas pumping, the axial flow turbines have been continuously updated and are now capable of high ...
Razvan Edmond Nicoara, Daniel Eugeniu Crunteanu, Valeriu Alexandru Vilag   +2 more
doaj   +1 more source

A Reliable Update of the Ainley and Mathieson Profile and Secondary Correlations

International Journal of Turbomachinery, Propulsion and Power, 2022
Empirical correlations are still fundamental in the modern design paradigm of axial turbines. Among these, the prominent Ainley and Mathieson correlation (Ainley D. and Mathieson G., 1951, “A Method of Performance Estimation for Axial-Flow Turbines,” ARC
Yumin Liu, Patrick Hendrick, Zhengping Zou, Frank Buysschaert   +3 more
doaj   +1 more source

Altering Kinetic Energy Entrainment in Large Eddy Simulations of Large Wind Farms Using Unconventional Wind Turbine Actuator Forcing

Energies, 2015
In this study, horizontally periodic large eddy simulations (LES) are utilized to study turbulent atmospheric boundary-layer flow over wind turbines in the far-downstream portion of a large wind farm where the wakes have merged and the flow is fully ...
Claire VerHulst, Charles Meneveau
doaj   +1 more source

Evaluation of fatigue strength criteria for thick-walled nodular cast iron components from EN-GJS-400 under multiaxial load [PDF]

MATEC Web of Conferences, 2019
This paper discusses the quality of common methods for estimating the fatigue strength of EN-GJS-400-18-LT specimens under multiaxial stress. This is particularly important for the lightweight design of wind turbines.
Fass Markus, Störzel Klaus, Baumgartner Jörg   +2 more
doaj   +1 more source