LAPSE:2020.1260
Published Article
LAPSE:2020.1260
Flow and Noise Characteristics of Centrifugal Fan in Low Pressure Environment
Xilong Zhang, Yongliang Zhang, Chenggang Lu
December 22, 2020
The influence of low-pressure environment on centrifugal fan’s flow and noise characteristics was studied experimentally and numerically. A testbed was established to conduct the experimental test on the performance of a centrifugal fan, and the characteristic curve and power consumption curve of the fan under different pressure were obtained. Then the simulation model of the centrifugal fan was established, which was used to simulate the working process of centrifugal fan under different negative pressures. The results showed that the total pressure and static pressure of the fan decrease with the decrease of the ambient pressure. The total and static pressures of the fan under 60 kPa pressure condition decreased by 42.3% and 38.3%, respectively, compared with those of fan under the normal pressure. The main reason for this phenomenon is that the decrease of the environmental pressure leads to the decrease of air density. Besides, with the drop of environmental pressure, the sound pressure and sound power of the fan noise decreases.
Keywords
centrifugal fan, negative pressure, noise characteristics, power consumption, sound pressure
Subject
Suggested Citation
Zhang X, Zhang Y, Lu C. Flow and Noise Characteristics of Centrifugal Fan in Low Pressure Environment. (2020). LAPSE:2020.1260
Author Affiliations
Zhang X: School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Zhang Y: School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Lu C: School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Journal Name
Processes
Volume
8
Issue
8
Article Number
E985
Year
2020
Publication Date
2020-08-13
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8080985, Publication Type: Journal Article
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LAPSE:2020.1260
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doi:10.3390/pr8080985
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Dec 22, 2020
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CC BY 4.0
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[v1] (Original Submission)
Dec 22, 2020
 
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Dec 22, 2020
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Original Submitter
Calvin Tsay
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