Results 81 to 90 of about 224,010 (356)

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Multi-Objective Optimization of an Adaptive Cycle Fan Based on XAI-Driven Feature Selection

Aerospace
To address the high-dimensional design optimization of an adaptive cycle fan (ACF), this paper proposes a new multi-objective optimization (MOO) method based on explainable artificial intelligence (XAI)-driven feature selection.
Heli Yang, Junying Wang, Lei Jin, Weihan Kong, Baotong Wang, Xinqian Zheng   +5 more
doaj   +1 more source

Improvement of gas turbine engines due to isothermal expansion in the turbine

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
The article presents the results of the study of application of isothermal expansion in the turbine of gas turbine engines as a way of improving the thermodynamic cycle. We present equations of work and ideal cycle efficiency of a gas turbine engine with
M. A. Muraeva, I. M. Gorjunov
doaj   +1 more source

Assessing biomass-fired gas turbine power plants: a techno-economic and environmental perspective [PDF]

, 2013
Fossil fuels continue to deplete with use as they are irreplaceable. In addition, the environmental impact with the continuous use of these conventional fuels has generated global concern due to the production of harmful emission gases. An alternative
Ihiabe, Daniel
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Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Influence and Quantitative Analysis of Different Parameters on Adaptive Cycle Fan Performance

Aerospace
This study investigates the adaptive cycle fan (ACF), a key component enabling variable-cycle functionality in next-generation adaptive cycle engines (ACE).
Heli Yang, Junying Wang, Wangzhi Zou, Weihan Kong, Xinqian Zheng   +4 more
doaj   +1 more source

Service Temperature Measurement and Thermal Insulation Mechanism of Thermal Barrier Coatings [PDF]

Cailiao Baohu
Thermal barrier coatings (TBC) are used for thermal protection of aero-engine turbine blade surface, which mainly consist of bond coatings and ceramic coatings.
ZHANG Kairong, XU Yi, LIU Meijun, YANG Guanjun
doaj   +1 more source

The CW251B12 Gas Turbine Engine [PDF]

Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, 1989
The latest variant of the W251 family of engines, the CW251B12, rated at 48 MW, is described in this paper. The improved performance, compared to the CW251B10 model, is achieved by the redesign of the compressor for increased mass flow and efficiency and by hot end modifications, which allow a modest increase in firing temperature.
openaire   +1 more source

An experimental and numerical investigation of the effect of aero gas turbine test facility aspect ratio on thrust measurement. [PDF]

, 2011
This work describes the outcome of research program investigating thrust measurements in enclosed test facility for modern aero gas turbine engines. Literature work, experimental work and a description of Computational fluid dynamics simulation system
Al-Alshaikh, Abdullatif
core