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| Experimental Investigation of a Reciprocating Double-plunger Gas Flow Standard Device |
| XU Chun-wei1,ZHANG Gao-ming2,XU Zhi-peng2 |
1. Zhejiang Institute of Mechanical & Electrical Engineering, Hangzhou, Zhejiang 310053, China
2. Zhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University,
Hangzhou, Zhejiang 310018, China |
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Abstract To solve the problems of restricted dimension of cylinder and limited flow range of the plunger gas flow standard devices, a reciprocating double-plunger gas flow standard device was developed, operating modes including single-cylinder, parallel double-cylinder and tandem double-cylinder modes were explored. For different operating modes, the repeatability and accuracy of the device were verified by the calibration experiment of a sonic nozzle with the nominal flow rate of 0.06m3/h. Results revealed that the repetitive rate of the device was less than 0.02% at different modes, the errors of the device at single-cylinder and parallel double-cylinder modes were less than 0.02%, while the error of the device at tandem double-cylinder mode was less than 0.05%.
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Received: 06 December 2022
Published: 22 August 2023
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2023, Vol. 44 
