Results 21 to 30 of about 52,061 (309)

Analyses of the Effect of Cycle Inlet Temperature on the Precooler and Plant Efficiency of the Simple and Intercooled Helium Gas Turbine Cycles for Generation IV Nuclear Power Plants

Applied Sciences, 2017
Nuclear Power Plant (NPP) precooler coolant temperature is critical to performance because it impacts the work required to increase the coolant pressure.
Arnold Gad-Briggs, Theoklis Nikolaidis, Pericles Pilidis   +2 more
doaj   +1 more source

Microstructure evolution of creep damaged DZ411 superalloy during rejuvenation heat treatment

Journal of Aeronautical Materials, 2019
The simple solution and aging treatment processes were adopted to rejuvenate the microstructure of creep damaged DZ411 superalloy. The microstructure evolution of superalloy during rejuvenation process was investigated by OM and SEM, and then the ...
TANG Wenshu, XIAO Junfeng, GAO Sifeng, LI Yongjun, NAN Qing, ZHANG Jiong   +5 more
doaj   +1 more source

Numerical Research on the Jet Mixing Mechanism of the De-Swirling Lobed Mixer Integrated with OGV

Energies, 2023
The outlet guide vane (OGV) is integrated with the lobed mixer to improve the exhaust system’s performance with a high core inlet swirl. The best location for integrating the OGV is along the central line of the lobe’s trough and near the exit plane of ...
Zhijun Lei, Hanliu Deng, Xiaoqing Ouyang, Yanfeng Zhang, Xingen Lu, Gang Xu, Junqiang Zhu   +6 more
doaj   +1 more source

Monitoring thermoacoustic instability: A comparative analysis of feature-based and end-to-end deep learning approaches

Applications in Energy and Combustion Science
This paper compares two data-driven frameworks for monitoring thermoacoustic instability (TAI) in a gas turbine combustor. A conventional machine learning approach using handcrafted features is contrasted with an end-to-end deep learning method employing
Jikang Wang, Yichen Wang, Yupeng Qin, Xuan Lv   +3 more
doaj   +1 more source

Experimental and Computational Analysis of the Unstable Flow Structure in a Centrifugal Compressor with a Vaneless Diffuser

Chinese Journal of Mechanical Engineering, 2019
The unstable flow phenomena in compressors, such as stall and surge, are closely related to the efficiency and the operating region. It is indispensable to capture the unstable flow structure in compressors and understand the mechanism of flow ...
Xiang Xue, Tong Wang
doaj   +1 more source

A Thermal Fluid–Solid Coupling Simulation of Gas Fuel Control Valves for High-Precision Gas Turbines

Aerospace, 2023
Gas fuel control valves play important roles in the control of gas flow in high-precision gas turbines. To clarify the influence of coupling between the structure and the fluid system, a thermal fluid–solid coupling mechanism is presented based on ...
Haoran Pan, Wei Li, Kaikai Luo, Rui Wang, Liesheng Xiao, Zeqing Lian   +5 more
doaj   +1 more source

Research progress on application of new thermal barrier coatings in advanced aero-engines

Journal of Aeronautical Materials
The operating temperatures of hot-section components in advanced aero-engines continue to increase，accompanied by increasingly severe service conditions.
TIAN Wei, GUO Huiming, LIU Yanfei
doaj   +1 more source

Development and experimental study on linear friction welding titanium alloy blisk

Journal of Aeronautical Materials, 2020
Taking the advanced aeroengine compressor blisk as the application object, the development and experimental study on the TC11/TC17 different materials linear friction welding integral blisk was carried out. The microstructure of welded joint was analyzed,
LI Zuojun, TIAN Wei, ZHANG Tiancang, JI Yajuan, ZHONG Yan   +4 more
doaj   +1 more source

Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC

Crystals, 2022
Polycrystalline nickel-based superalloys tend to have large grains within component areas where high loads are dominant during operation. Due to these large grains, caused by the manufacturing and cooling process, the orientation of each grain becomes ...
Benedikt Engel, Mark Huth, Christopher Hyde   +2 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source