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Spray Drift from a Conventional Axial Fan Airblast Sprayer in a Modern Orchard Work Environment. [PDF]

open access: yesAnn Work Expo Health, 2018
Pesticide spray drift represents an important cause of crop damage and farmworker illness, especially among orchard workers. We drew upon exposure characteristics from known human illness cases to design a series of six spray trials that measured drift ...
Kasner EJ   +6 more
europepmc   +2 more sources

Numerical simulation of unsteady aerodynamic interactions of contra-rotating axial fan. [PDF]

open access: yesPLoS One, 2018
This paper describes the investigations performed to better understand unsteady effect that develop in a contra-rotating axial fan. More specifically, this study focuses on rotor-rotor interactions effects on unsteady characteristic and blade aerodynamic
Luan H, Weng L, Luan Y.
europepmc   +2 more sources

Axial Fan Performance under the Influence of a Uniform Ambient Flow Field

open access: yesInternational Journal of Rotating Machinery, 2018
In their application to air-cooled condensers, axial fans are often subject to the detrimental influence of ambient flow fields at their inlet or outlet.
Till Heinemann, Stefan Becker
doaj   +2 more sources

Experimental study on variable frequency control and air leakage control of multi-fan combination in subway tunnels [PDF]

open access: yesScientific Reports
In centralized smoke exhaust emergency ventilation systems for metro tunnels, axial supply fans are often located far from the tunnel exit due to complex terrain constraints.
Guo Ying   +4 more
doaj   +2 more sources

Effects of the Second-Stage of Rotor with Single Abnormal Blade Angle on Rotating Stall of a Two-Stage Variable Pitch Axial Fan

open access: yesEnergies, 2018
It is of great value to study the impact of abnormal blade installation angle on the inducement mechanism of rotating stall to achieve the active control of rotating stall in an axial fan.
Lei Zhang   +5 more
doaj   +2 more sources

Modeling a Large Air-Cooled Condenser [PDF]

open access: yesMATEC Web of Conferences, 2021
This study reports on a modeling strategy for large Air-Cooled Condensers (ACCs). A large 64-fan ACC was modeled under various crosswind conditions that investigated the ACC’s specific axial flow fan configuration.
Louw D.L., Meyer C.J., van der Spuy S.J.
doaj   +1 more source

Experimental study of the parameter effects on the flow and noise characteristics for a contra-rotating axial fan

open access: yesFrontiers in Physics, 2023
Introduction: In the present paper, experiments for a contra-rotating axial fan have been conducted to investigate the influences of the fan parameters including axial distance, blade number, blade pattern and blade thickness on the performance and noise
Yanjie Zhao   +4 more
doaj   +1 more source

Numerical flow noise simulation of an axial fan with a Lattice-Boltzmann solver

open access: yesActa Acustica, 2023
In this paper, a transient and compressible solver based on the Lattice-Boltzmann Method/Very Large Eddy Simulation (LBM/VLES) approach is employed to predict unsteady flow physics and flow-induced noise generation of a low-pressure axial fan ...
Evangelos Antoniou   +4 more
semanticscholar   +1 more source

Aeroacoustic Simulations of an Axial Fan with Modelled Turbulent Inflow Conditions

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
In applications, the acoustics of fans can differ significantly from the measurements of the standalone fan. This is due to disturbed inflow conditions, for example, caused by a heat exchanger upstream of an axial fan.
P. Dietrich, Marc Schneider
semanticscholar   +1 more source

Extending Highly Loaded Axial Fan Operability Range Through Novel Blade Design

open access: yesJournal of turbomachinery, 2022
The tip clearance size has historically been considered to be the main factor affecting stability range in axial fan and compressors. This paper reveals that the stall characteristics are defined by the axial momentum flux of the tip leakage flow and ...
Diego I. Lopez   +4 more
semanticscholar   +1 more source

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