Results 11 to 20 of about 452,511 (266)

Simulation of the Secondary Air System of Aero Engines [PDF]

open access: yesVolume 1: Turbomachinery, 1992
This paper describes a computer program for the simulation of secondary air systems. Typical flow system elements are presented, such as restrictors, tappings, seals, vortices, and coverplates. Two-phase flow as occuring in bearing chamber vent systems is briefly discussed.
K. J. Kutz, T. M. Speer
openaire   +1 more source

Numerical study on optimization of secondary air box in a 600 MW opposed wall-fired boiler

open access: yesAIP Advances, 2023
The opposed wall-fired boiler has been widely employed in power plants in China due to its adaptability. However, the airflow in the same layer burners from the large air box is uneven, affecting the combustion characteristics of pulverized coal and ...
Xinyu Ning   +6 more
doaj   +1 more source

Numerical Investigation of the Effect of Air Leaking into the Working Fluid on the Performance of a Steam Ejector

open access: yesApplied Sciences, 2021
This paper investigated the effect of air leaking into the working fluid on the performance of a steam ejector. A simulation of the mixing of air into the primary and secondary fluids was performed using CFD. The effects of air with a 0, 0.1, 0.3 and 0.5
He Li   +4 more
doaj   +1 more source

Analysis and Treatment of Inverted Air Flow in Main Inclined Shaft of Guojiahe Coal Mine in Winter

open access: yesMeikuang Anquan, 2020
To solve the problem of inverted air airflow in main inclined shaft in winter, the causes and process of natural wind pressure reverses airflow in roadway were analyzed.
SANG Cong
doaj   +1 more source

Closed loop liquid cooling of high-powered CPUs: A case study on cooling performance and energy optimization

open access: yesCase Studies in Thermal Engineering, 2023
This case study presents an experimental investigation of closed loop liquid cooling of CPUs. The cooling system implements a pumped liquid supplying a cold plate fixed to the emulated CPU heat source and a remote Air-Cooled Heat Exchanger (ACHE).
F.M. Naduvilakath-Mohammed   +3 more
doaj   +1 more source

Experimental study on the disinfection of microbial contamination by the microwave radiation on a typical filter coated with absorbing material [PDF]

open access: yesE3S Web of Conferences, 2022
In the air-conditioning system, a high-efficiency air filter can guarantee the capture of dust and biological particles. However, the traditional filter material itself does not have the function of disinfection and self-purification.
Zhang Yuan, Wang Feifei, Xu Xinhua
doaj   +1 more source

Impact of low-pressure systems on winter heavy air pollution in the northwest Sichuan Basin, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
The cities of Chengdu, Deyang, and Mianyang in the northwest Sichuan Basin are part of a rapidly developing urban agglomeration adjoining the eastern slopes of the Tibetan Plateau.
G. Ning   +11 more
doaj   +1 more source

Critical contribution of moisture to the air quality deterioration in a warm and humid weather

open access: yesScientific Reports, 2023
The deterioration of air quality that threatens human health is recognized as focal compound hazard. Here, decisive thermodynamic conditions for activation of secondary aerosol formation have been investigated focused on Korea.
Woosuk Choi, Chang-Hoi Ho, Ka-Young Kim
doaj   +1 more source

Selection of oxygen reduction catalysts for secondary tri-electrode zinc–air batteries

open access: yesScientific Reports, 2022
Oxygen reduction reaction (ORR) electrocatalysts, which are highly efficient, low-cost, yet durable, are important for secondary Zn–air cell applications.
Adeline Loh   +5 more
doaj   +1 more source

Retrofit of a 600 MW Down-Fired Pulverized-Coal Furnace for Low NOx Emission

open access: yesEnergies, 2023
Aiming at solving the problem of high NOx emissions of a down-fired boiler, a new combustion system has been proposed by means of the numerical simulation using Ansys Fluent.
Tao Liu, Sheng Wang, Ziming Wei, Jie Yu
doaj   +1 more source

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