Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2007.05b
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- Pages.2961-2966
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- 2007
The Effect of Curvature Radius and Material of Diaphragm on the Valve Opening Time in Diaphragm Type S/R Valve
S/R 밸브에서 격막의 곡률반경과 재료가 밸브 개구시간에 미치는 영향
Abstract
When the pressure at the weak spot established at a certain part of a high pressure vessel or piping system exceeds a design pressure, this weak spot is burst, and the pressurized gas emitted through the weak spot will cause a compression wave system. In this connection, in the present study, an experimental study by using a conventional shock tube facility is performed to estimate the effects of the material of diaphragm, curvature radius and thickness of materials on the valve opening time in diaphragm. Pressure sensor having 500kHz in natural frequency is installed at 35mm downstream of the rupture diaphragm to measure the static pressure history of propagating and being accumulated compression wave. 4 kinds of materials are used as diaphragm that is aluminium, copper, stainless steel and zinc. The diaphragm radii of curvature R are
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