The paper investigates instable behavior of a poppet-type gas pressure relief valve operating at a big flow rate (more than 2 kg/s) under super critical pressure drop. Instability is experienced as noise and vibration and leads to severe damage of a seat and other elements. Significant and unsteady flow forces coupled with small inherent damping make it difficult to stabilize the system. In previous works, the analytical and experimental research was carried out to reveal the most essential factors influencing stability and dynamic properties of the valve. The impact of the pilot valve dynamics on the system behavior was studied for the purpose of obtaining required accuracy and stability in a wide range of flow rate. It was shown in some testing that unstable behavior of the main valve occurred when the pilot valve was stable. This paper considers inherent stability of the main valve in the gas flow. CFD software ANSYS FLUENT is employed to study the effect of the poppet geometry on aerodynamic lifting force and valve stability in axial and lateral direction. The results have been verified through comparison with experimental data.
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ASME/BATH 2013 Symposium on Fluid Power and Motion Control
October 6–9, 2013
Sarasota, Florida, USA
Conference Sponsors:
- Fluid Power Systems and Technology Division
ISBN:
978-0-7918-5608-6
PROCEEDINGS PAPER
Study on Dynamic Behavior of a Gas Pressure Relief Valve for a Big Flow Rate
Victor Sverbilov,
Victor Sverbilov
Samara State Aerospace University, Samara, Russia
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Dmitry Stadnick,
Dmitry Stadnick
Samara State Aerospace University, Samara, Russia
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Georgy Makaryants
Georgy Makaryants
Samara State Aerospace University, Samara, Russia
Search for other works by this author on:
Victor Sverbilov
Samara State Aerospace University, Samara, Russia
Dmitry Stadnick
Samara State Aerospace University, Samara, Russia
Georgy Makaryants
Samara State Aerospace University, Samara, Russia
Paper No:
FPMC2013-4479, V001T01A046; 8 pages
Published Online:
February 26, 2014
Citation
Sverbilov, V, Stadnick, D, & Makaryants, G. "Study on Dynamic Behavior of a Gas Pressure Relief Valve for a Big Flow Rate." Proceedings of the ASME/BATH 2013 Symposium on Fluid Power and Motion Control. ASME/BATH 2013 Symposium on Fluid Power and Motion Control. Sarasota, Florida, USA. October 6–9, 2013. V001T01A046. ASME. https://doi.org/10.1115/FPMC2013-4479
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