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Aerodynamic noise characteristics of a centrifugal fan in high-altitude environments. [PDF]
PLoS ONEIn high-altitude areas, the air is thin and the atmospheric pressure is low, which can affect the performance of centrifugal fans and aerodynamic noise.
Xue Liu, Jian Liu
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Acoustics, 2020 Due to the fact that legal and market requirements are becoming stricter, fan noise reduction, in addition to energy efficiency, represent a challenge for fan product designers.
Rebecca Schafer +2 more
exaly +3 more sources
Simulation of Entropy Generation under Stall Conditions in a Centrifugal Fan
Entropy, 2014 Rotating stalls are generally the first instability met in turbomachinery, before surges. This 3D phenomenon is characterized by one or more stalled flow cells which rotate at a fraction of the impeller speed. The goal of the present work is to shed some
Jinhua Lang, , Songling Wang
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Energy-Saving Performance of Flap-Adjustment-Based Centrifugal Fan
Energies, 2018 The current paper mainly focuses on finding a more appropriate way to enhance the fan performance at off-design conditions. The centrifugal fan (CF) based on flap-adjustment (FA) has been investigated through theoretical, experimental, and finite element
Wei Xu
exaly +3 more sources
Noise Prediction of Centrifugal Fan Based on Improved Nenral Network [PDF]
E3S Web of Conferences, 2021 In order to solve the problems that the prediction accuracy of the traditional centrifugal fan is low and the cost is high, a noise prediction model for centrifugal fan based on improved particle swarm optimization (IPSO) optimized BP neural network was ...
Long Bo +3 more
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Agriculture, 2023 To enhance the working efficiency and aerodynamic performance of the centrifugal fan in the air system of a cotton picker, a new type of centrifugal fan blade was designed by extracting the mid-arc section from the prototype blade and integrating an ...
Wenping Shao +5 more
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Energies, 2022 To improve the aerodynamic performance and reduce the noise of multi-blade centrifugal fans used in air conditioners, a bionic groove structure was introduced into the blade tip design, inspired by the drag reduction characteristics of mantis shrimp.
Ziqian Xu +4 more
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Metals, 2023 The centrifugal fan is widely used in converting mechanical energy to aerodynamic energy. To improve the pressure of the multi-blade centrifugal fan used in an air purifier, an optimization process was proposed based on extreme learning machine (ELM ...
Fannian Meng +3 more
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Effect of Gurney flap Height and Mounting Position on the Performance of a Centrifugal Fan [PDF]
Journal of Applied Fluid Mechanics, 2022 The effect of Gurney flap height and mounting position on the head coefficient of a centrifugal fan at different Reynolds numbers is investigated experimentally.
M. Suresh, N. Sitaram
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Volute Optimization Based on Self-Adaption Kriging Surrogate Model
International Journal of Chemical Engineering, 2022 Optimizing the volute performance can effectively improve the efficiency of a centrifugal fan by changing the volute geometric parameter, so the self-adaption Kriging surrogate model is used to optimize the volute geometric parameter.
Fannian Meng, Ziqi Zhang, Liangwen Wang
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