Results 41 to 50 of about 34,692 (219)

Effect of Savonius blade height on the performance of a hybrid Darrieus-Savonius wind turbine

Journal of Mechanical Engineering and Sciences, 2019
A vertical hybrid turbine commonly consists of a Darrieus and Savonius rotor where the Savonius is inside Darrieus turbine. This paper describes the experimental study of hybrid Darrieus-Savonius wind turbines by variation in Savonius blade height.
Dewi Puspitasari, Kaprawi Sahim
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

A study on the matching of constraint between steam turbine blade and laboratory specimens

Advances in Mechanical Engineering, 2020
The matching of constraint between laboratory specimens and actual cracked structures is a key problem of the accurate structure integrity assessment.
Jie Yang, Yuman Liu, Haofeng Chen
doaj   +1 more source

Influence of blade number on performance of multistage hydraulic turbine in turbine mode

Energy Science & Engineering, 2022
Compared with the traditional reverse multistage pump as hydraulic turbine, hydraulic turbine in turbine mode (T‐type turbine) with low specific speed has higher single‐stage energy head, which can effectively reduce stages and increase the stability ...
Lihong Zhang, Yanpin Li, Zichao Zhang, Jinbao Chen, Dexin Chen   +4 more
doaj   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Design of Archimedes Screw Turbine by Multi-step Selections on Parameter Pitch Distance, Blade Number, and Blade Angle [PDF]

International Journal of Mathematical, Engineering and Management Sciences
One of the water turbines called an Archimedes screw turbine (ASTs) is appropriate to run in a low head of just less than 5 m and works at a wide range of discharge operations.
Sarjito, Agus Dwi Anggono, Wijianto, Fauzan Anas Wirawan, Sidik Kurniawan, Bagus Dwi Nugroho   +5 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Three dimensional unsteady flow for an oscillating turbine blade [PDF]

, 1999
An experimental and computational study, motivated by the need to improve current understanding of blade flutter in turbomachinery and provide 3D test data for the validation of advanced computational methods for the prediction of this aeroelastic ...
Bell, D.L., Bell, David Lloyd
core  

Data-Driven Reduced-Order Model for Efficient Temperature Prediction of Gas Turbine Blades

Shanghai Jiaotong Daxue xuebao
Turbine blades are key hot components of gas turbines, which operates in high temperature and harsh environment. Accurate and efficient prediction of turbine blade temperature field is of great significance for the safety and stability of gas turbine ...
QIAO Lijie, DONG Han, FENG Keyun, LI Zizhou, HAO Chen, WANG Weizhe, ZHAO Xinbao
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source