Results 1 to 10 of about 276,321 (210)

Effect of rejuvenation heat treatment on re-service aging stability of γ′phase in directionally solidified superalloy

open access: yesJournal of Aeronautical Materials, 2021
High temperature aging treatment was first conducted on the rejuvenated directionally solidified superalloy to simulate the re-service aging damage of turbine blades and the virgin directionally solidified superalloy respectively.
TANG Wenshu   +5 more
doaj   +1 more source

Positioning control of DC servomotor-based antenna using PID tuned compensator [PDF]

open access: yesЖурнал інженерних наук, 2021
Direct current (DC) servomotor-based parabolic antenna is automatically positioned using control technique to track satellite by maintaining the desired line of sight for quality transmission and reception of electromagnetic wave signals in ...
Eze P. C., Ugoh C. A., Inaibo D. S.
doaj   +1 more source

Experimental Study on Fuel-Switching of Dual-Fuel Gas Turbine Combustor

open access: yesFrontiers in Energy Research, 2022
To research the fuel-switching rules for gas turbine dual-fuel combustor, the effects of fuel change rate, fuel compensation rate, permissible fluctuation limit of outlet temperature, and fuel matching on the fuel-switching performance were studied ...
Lin Feng   +5 more
doaj   +1 more source

Impact Investigation of Stator Seal Leakage on Aerodynamic Performance of Multistage Compressor

open access: yesFrontiers in Energy Research, 2021
In this paper, a numerical model based on the mass flow rate of seal leakage is presented, and a 3D numerical method of a multistage axial compressor with good engineering practicability is established.
Qi Wang   +7 more
doaj   +1 more source

Wind turbine sound power measurements [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2016
This paper provides experimental validation of the sound power level data obtained from manufacturers for the ten wind turbine models examined in Health Canada's Community Noise and Health Study (CNHS). Within measurement uncertainty, the wind turbine sound power levels measured using IEC 61400-11 [(2002).
Stephen E, Keith   +8 more
openaire   +2 more sources

Effect of Slot Jet Flow on Non-Axisymmetric Endwall Cooling Performance of High-Load Turbines

open access: yesMachines, 2023
As vane inlet temperatures and turbine loadings are increasing, the aerodynamic and thermal management for the endwalls of gas turbines have received increased attention. Non-axisymmetric endwalls are becoming popular due to their proficient capabilities
Kun Du   +6 more
doaj   +1 more source

Research on Technical Scheme for Shutdown Maintenance Design of 9F Class Combined Cycle Heating Unit

open access: yes发电技术, 2020
In thermal power plants, the corrosion of main equipment can cause major safety hazards and economic losses. Thus, it is very important to take proper maintenance for thermal equipment in power plant during shutdown.
Jun YANG   +5 more
doaj   +1 more source

Investigation of the Characteristics of a Gas Turbine Combustion Chamber with Steam Injection Operating on Hydrogen-Containing Mixtures and Hydrogen

open access: yesInternational Journal of Chemical Engineering, 2022
The article is devoted to the investigation of the characteristics of a gas turbine combustion chamber with a steam injection when operating on hydrogen-containing mixtures and pure hydrogen.
Serhiy Serbin   +2 more
doaj   +1 more source

Evaluation of technical and economic effect from setup of distributed photovoltaic generation on the Right-of-Way land of the North Caucasus Railway [PDF]

open access: yesE3S Web of Conferences, 2019
In this work, we consider the concept of using a distributed solar power plant, setup on the right-of-way of the railroad. The proposed solution allows to shave peaks of electricity consumption without additional land alienation, using the existing power
Asanov Ibragim   +2 more
doaj   +1 more source

Microstructure evolution of creep damaged DZ411 superalloy during rejuvenation heat treatment

open access: yesJournal 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   +5 more
doaj   +1 more source

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