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An Experimental Study on the Diaphragm Deflection Characteristic of a Hydrogen Diaphragm Compressor  

Shin, Young-Il (Graduate School of Mechanical Engineering, Pusan National. Univ.)
Park, Hyun-Woo (Graduate School of Mechanical Engineering, Pusan National. Univ.)
Lee, Young-Jun (Graduate School of Mechanical Engineering, Pusan National. Univ.)
Kim, Gyu-Bo (Graduate School of Mechanical Engineering, Pusan National. Univ.)
Song, Ju-Hun (School of Mechanical Engineering, Pusan National Univ., RIMT)
Chang, Young-June (School of Mechanical Engineering, Pusan National Univ., RIMT)
Jeon, Chung-Hwan (School of Mechanical Engineering, Pusan National Univ., RIMT)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.4, 2009 , pp. 274-282 More about this Journal
Abstract
Diaphragm compressor is widely used for hydrogen compression because it achieves high gas pressure without gas contamination. Diaphragm deflecting in the cavity with high pressure formed by an oil compression is the most important component in the compressor. Therefore, it is necessary to obtain deflection degree of diaphragm to predict the damage point of diaphragm. The objective of this study is to estimate the diaphragm's damage point through diaphragm deflection test by implementing with strain gauges attached on several radial points. Without gas compression, strain sum of each points varied as similarly as the variation of the pressure with respect to time. And while the motor speed was slower than 400rpm, the strain near the rim was larger than that of the center. When motor speed, however, was over 500rpm, strain became similar to that of the center and the rim. With gas compression, it was shown that the variation of the strain sum was delayed against that of the pressure and the strain near the rim was much higher than that of the center.
Keywords
Hydrogen compressor; Diaphragm; Strain; Pressure; rpm;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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