Results 11 to 20 of about 4,915 (262)

Cause analysis and suppression method of the vortex at the impeller outlet of the multiblade centrifugal fan

open access: yesEnergy Science & Engineering, 2023
Indoor air conditioning systems play a crucial role in regulating the environmental conditions of enclosed spaces. The noise generated by such systems can significantly impact human comfort.
Jian Lei   +4 more
doaj   +1 more source

CORRESPONDENCE. THE DESIGN AND TESTING OF CENTRIFUGAL FANS. [PDF]

open access: yesMinutes of the Proceedings of the Institution of Civil Engineers, 1896
n ...
Heenan, H.   +6 more
openaire   +2 more sources

Effect of Volute-Tongue Clearance on the Aerodynamic Performance and Noise of Multi-Wing Centrifugal Fan for Air Conditioning [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Multi-wing centrifugal fans are wildly used in the central air-conditioning. The influence of dimensionless clearance of the volute-tongue on aerodynamic performance and noise is studied by numerical simulation and experimental tests in this paper.
Y. Wei   +5 more
doaj   +1 more source

Sprayer for chemical treatment of vineyards and orchards [PDF]

open access: yesE3S Web of Conferences, 2021
The authors have developed an improved sprayer for two-way chemical treatment of vineyards and orchards. The research aims to justify the design scheme and parameters of the sprayer.
Xalilov Muxtor, Yusupov Rustam
doaj   +1 more source

Surrogate Model on the Extension Operation Range of an Isolated Centrifugal Fan [PDF]

open access: yesJournal of Applied Fluid Mechanics
Isolated centrifugal fans are widely utilized in air conditioning system and their performance is closely related to the energy consumption of the system. The purpose of this work is to enlarge the fan operation range without reducing peak efficiency. An
Z. Li, P. Luo, M. Zhu, Y. Liu, Z. Chen
doaj   +1 more source

Prediction and Reduction of Aerodynamic Noise of the Multiblade Centrifugal Fan

open access: yesAdvances in Mechanical Engineering, 2014
An aerodynamic and aeroacoustic investigation of the multiblade centrifugal fan is proposed in this paper, and a hybrid technique of combining flow field calculation and acoustic analysis is applied to solve the aeroacoustic problem of multiblade ...
Shuiqing Zhou, Jun Wang
doaj   +1 more source

Profile Scaling of Miniature Centrifugal Fans

open access: yesHeat Transfer Engineering, 2009
This paper addresses issues that relate to downscaling the height of centrifugal fans for application in low profile technologies, such as the cooling of portable power electronics. The parameters studied include flow rate, pressure rise, and power consumption characteristics.
Walsh, P, Egan, V, Grimes, R, Walsh, E
openaire   +1 more source

Noise from Centrifugal Fans [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1955
The sound power radiated from the discharge of centrifugal fans of diameters between 3 and 612 inches has been measured as a function of fan dimensions and operating conditions. The measurements were made by arranging the fan under test to discharge into an 11 foot nonreflecting tube in which the static pressure could be controlled.
R. B. Goldman, G. C. Maling
openaire   +1 more source

Passive Blowing Strategy to Enhance Aerodynamic Performance and Noise of a Hollow-bladed Axial Fan: An Experimental Study [PDF]

open access: yesJournal of Applied Fluid Mechanics
This research explores the efficacy of a passive control strategy designed to enhance the performance of an axial hollow fan. This investigation uses a dedicated experimental setup to evaluate various aspects of the fan's performance, including ...
A. Bouanik   +5 more
doaj   +1 more source

Airfoil Design and Flow Analysis of a Multi-Blade Centrifugal Fan: An Experimental and Simulation Study

open access: yesApplied Sciences
To overcome the technical challenges of the multi-blade centrifugal fan, such as low efficiency and insufficient total pressure, the blades of the fan were optimally designed in this study.
Haonan Yin   +4 more
doaj   +1 more source

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