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CLC number: TH138

On-line Access: 2012-06-04

Received: 2011-07-04

Revision Accepted: 2012-02-28

Crosschecked: 2012-05-16

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Journal of Zhejiang University SCIENCE A 2012 Vol.13 No.6 P.481-490

http://doi.org/10.1631/jzus.A1100176


Dimensionless study on outlet flow characteristics of an air-driven booster


Author(s):  Yan Shi, Mao-lin Cai

Affiliation(s):  School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

Corresponding email(s):   yesoyou@gmail.com, caimaolin@gmail.com

Key Words:  Air-driven booster, Outlet flow, Pneumatic system, Compressed air


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Yan Shi, Mao-lin Cai. Dimensionless study on outlet flow characteristics of an air-driven booster[J]. Journal of Zhejiang University Science A, 2012, 13(6): 481-490.

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author="Yan Shi, Mao-lin Cai",
journal="Journal of Zhejiang University Science A",
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%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1100176

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T1 - Dimensionless study on outlet flow characteristics of an air-driven booster
A1 - Yan Shi
A1 - Mao-lin Cai
J0 - Journal of Zhejiang University Science A
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DOI - 10.1631/jzus.A1100176


Abstract: 
air-driven boosters are widely used to obtain high-pressure gas. Through analysis of the boosting process of an air-driven booster, the basic mathematical model of working processes can be set up. By selecting the appropriate reference values, the basic mathematical model is transformed to a dimensionless expression. Using MATLAB/Simulink for simulation and studying the booster experimentally, the dimensionless outlet flow characteristics of the booster were obtained and the simulation results agree well with the experimental results. Through analysis, it can be seen that the dimensionless outlet flow of the booster is mainly determined by the dimensionless input pressure of the driving chamber, the dimensionless outlet condition pressure of the booster and the dimensionless area of the piston in the driving chamber. The dimensionless average outlet flow becomes larger with an increasing dimensionless input pressure of the driving chamber, but it becomes smaller with an increase in the dimensionless outlet condition pressure of the booster. Especially when the dimensionless outlet condition pressure is approximately 1.4, the dimensionless average outlet flow reaches zero. With an increase in the dimensionless area of the piston in the driving chamber, the dimensionless average outlet flow increases and peaks at approximately 1.89, and after this peak, it starts to decrease. This research can be referred to in the design of air-driven boosters.

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