Results 11 to 20 of about 276,420 (309)

A Homogenization Method for Replacement Stator Models in an Aero-Engine

open access: yesAerospace, 2022
Generally, the high-fidelity finite element models of aero-engines comprise millions of degrees of freedom (DOFs). Although they can provide precise predictions of structural dynamics, the computational cost will be often unaffordable if appropriate ...
Wenjun Wang   +4 more
doaj   +1 more source

Stress rupture initiated by the carbides in the grain boundaries of the multi-pass weld metal

open access: yesJournal of Materials Research and Technology, 2021
The weld metal (WM) was generally regarded as one of the weakest zones in the dissimilar welded joints. The microstructure and fracture mechanism of the multi-pass WM are systematically probed in the present study.
Tao Wei   +8 more
doaj   +1 more source

The comparison of various gas turbine inlet aircooling methods for various ambient condition trough energy and exergy analysis [PDF]

open access: yes, 2012
The strong influence of climate conditions on gas turbine behavior is well known. During the summer season the output of gas turbines falls to a value that is less than the rated output under high temperature conditions. Cooling the turbine inlet air can
Kaviri, A. Ganjeh   +3 more
core   +1 more source

Research on the Transient Characteristics of a Three-Stream Adaptive Cycle Engine

open access: yesEnergies, 2023
Based on the transient-performance calculation model of a dual-spool mixed-flow turbofan engine, this article improves the dynamic algorithm of geometric adjustment mechanisms and establishes a transient-performance calculation model suitable for a three-
Qiuxia Yu, Jun Hu, Weili Wang, Bin Gu
doaj   +1 more source

Experimental study of yawed inflow around wind turbine rotor [PDF]

open access: yes, 2012
In this article, we present an experimental study in a wind tunnel of a three-bladed, Rutland 503 model, horizontal axis yawed wind turbine. Power measurement and an exploration downstream wake of the turbine using particle image velocimetry measurements
DIZENE, Rabah   +4 more
core   +6 more sources

Wind Turbine Power Curve Upgrades

open access: yesEnergies, 2018
Full-scale wind turbine technology has been widely developing in the recent years and condition monitoring techniques assist at the scope of making 100\% technical availability a realistic perspective. In this context, several retrofitting techniques are being used for further improving the efficiency of wind kinetic energy conversion.
Astolfi, Davide   +2 more
openaire   +2 more sources

Effect of Flow Steering Angle Toward the Hydrokinetic Turbine Performance [PDF]

open access: yes, 2019
The kinetic turbine is one of the solutions for use in low-speed river flows ranging from 0.01–2.8 m/s. This kinetic turbine is used as a conversion equipment to convert the water kinetic energy into an electrical energy.
Soenoko, R. (Rudy), Wijaya, H. (Hastono)
core   +2 more sources

Optimization of constant power control of wind turbines to provide power reserves [PDF]

open access: yes, 2013
In several countries, the wind power penetration increased tremendously in the last years. As the current wind turbines do not participate in frequency control nor reserve provision, this may compromise the proper functioning of the primary control and ...
De Kooning, Jeroen   +4 more
core   +1 more source

DIRECT FUELCELL/TURBINE POWER PLANT [PDF]

open access: yes, 2004
This report summarizes the progress made in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power.
openaire   +10 more sources

Multiple-injection dry low-NOx combustor for hydrogen-rich syngas fuel: testing and evaluation of performance in an IGCC pilot plant

open access: yesMechanical Engineering Journal, 2014
The successful development of oxygen-blown integrated coal gasification combined cycle (IGCC) technology requires gas turbines capable of achieving the dry low nitrogen oxides (NOx) combustion of hydrogen-rich syngas for low emissions and high plant ...
Tomohiro ASAI   +5 more
doaj   +1 more source

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