Results 11 to 20 of about 2,859,954 (336)

Ozone pollution around a coastal region of South China Sea: interaction between marine and continental air [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Marine atmosphere is usually considered to be a clean environment, but this study indicates that the near-coast waters of the South China Sea (SCS) suffer from even worse air quality than coastal cities.
H. Wang   +13 more
doaj   +1 more source

Self-Powered Fine Dust Filtration Using Triboelectrification-Induced Electric Field

open access: yesNanoscale Research Letters, 2022
Particulate matter (PM) in the environment can adversely affect the health of living things. However, high removal efficiency and low-pressure loss are crucial design challenges for any air filtration system.
Young-Jun Kim   +4 more
doaj   +1 more source

Spatial and temporal variations of aerosols around Beijing in summer 2006: Model evaluation and source apportionment [PDF]

open access: yes, 2009
Regional aerosol model calculations were made using the Weather Research and Forecasting (WRF)-Community Multiscale Air Quality (CMAQ) and WRF-chem models to study spatial and temporal variations of aerosols around Beijing, China, in the summer of 2006 ...
Blake, DR   +13 more
core   +1 more source

Numerical Investigation on Windback Seals Used in Aero Engines

open access: yesAerospace, 2018
Seals are considered one of the most important flow elements in turbomachinery applications. The most traditional and widely known seal is the labyrinth seal but in recent years other types like the brush or carbon seals were introduced since they ...
Michael Flouros   +3 more
doaj   +1 more source

Influence of gas outburst dynamic flow on mine ventilation system

open access: yesAIP Advances, 2021
This study was conducted to analyze the influence of outburst power from coal and gas on mine ventilation systems in order to avoid damage from secondary disasters to mine ventilation systems.
Jingxiao Yu, Zongxiang Li, Wenqing Wang
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

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

Air cavities at the inner cylinder of turbulent Taylor-Couette flow [PDF]

open access: yes, 2018
Air cavities, i.e. air layers developed behind cavitators, are seen as a promising drag reducing method in the maritime industry. Here we utilize the Taylor-Couette (TC) geometry, i.e. the flow between two concentric, independently rotating cylinders, to
Bakhuis, Dennis   +5 more
core   +2 more sources

Continued Experimental Study on the Friction Contact between a Labyrinth Seal Fin and a Honeycomb Stator: Slanted Position

open access: yesAerospace, 2018
Labyrinth seals are a state-of-the-art sealing technology to prevent and control leakage flows at rotor–stator interfaces in turbomachinery. Higher pressure ratios and the economical use of cooling air require small clearances, which lead to ...
Oliver Munz   +3 more
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

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