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Journal of Failure Analysis and Prevention

, Volume 19, Issue 3, pp 838–843 | Cite as

Noise and Acoustic Fatigue Analysis in Valves (Case Study of Noise Analysis and Reduction for a 12″ × 10″ Pressure Safety Valve)

  • Karan SotoodehEmail author
Technical Article---Peer-Reviewed
  • 34 Downloads

Abstract

Safety and instrument engineers regularly analyze the noise in different types of valves to reduce its effect in sectors of the oil and gas industry such as offshore, refineries, and petrochemical plants. This paper reviews the mitigation strategies used to reduce acoustic fatigue and the risk of hearing damage from pressure safety valves and control valves used in piping systems. These two types of valves can generate high-frequency acoustical energy downstream of the valves. Different strategies are used to mitigate noise levels, such as installation of low-noise valves, process optimization to reduce the flow or delta pressure across valves, changing the valve design, acoustic piping installation, and increasing piping thickness. This paper discusses a case study of a noise calculation for a 12″ × 10″ pressure safety valve (PSV) at 1 m and 30 meters from the PSV discharge. The calculated noise level based on API 521, the standard for PSVs, has been compared with the maximum allowable noise limit from PSVs. The maximum allowable noise limit is calculated based on the NORSOK L-002 standard developed by Standards Norway. If the calculated noise level based on API 521 exceeds the allowable or acceptable noise limit based on NORSOK standards, the piping wall thickness should be increased to mitigate the risk of acoustic fatigue. The 12″ 6MO piping wall thickness outlet line of PSV is calculated based on the ASME B31.3 process piping code. The outlet pipe from PSV is in 6MO UNS 31254 material, which is expensive. Fortunately, there is no need to increase the piping wall thickness if the calculated noise based on the API 521 standard is within the accepted noise limit in the NORSOK standard.

Keywords

Noise Acoustic fatigue Pressure safety valves Control valves Mach number 

Notes

References

  1. 1.
    E.I.M Randall, PSV Noise—Criteria, Limits and Prediction. Valve World (2001). [Online]. Available from: http://www.valve-world.net/pdf/SRV_psvnoise.pdf?resourceId=379
  2. 2.
    Chiyoda Corporation, Acoustic Analysis Technologies and Acoustic Fatigue (2017). [Online]. Available from: https://www.chiyodacorp.com/en/service/chas/acoustic/
  3. 3.
    J. Shahda, Predicting Control Valve Noise in Gas and Steam Applications: Valve Trim Exit Velocity Head vs. Valve Outlet Mach Number (Dresser Masoneilan, 2010). [Online]. Available from: https://www.plantservices.com/assets/Media/1003/WP_Valve.pdf. Accessed 10 Feb 2019
  4. 4.
    J. Shahda, Valve Noise Prediction vs. Velocity Head Limitations in Gas Applications (Dresser Masoneilan, 2004). [Online]. Available from: http://www.iceweb.com.au/Valve/Control%20Valves/VelocityHeadLimits.pdf. Accessed 10 Feb 2019
  5. 5.
    Norwegian Oil and Gas Standard (NORSOK), NORSOK P-001, Process Design, 3rd revision (Lysaker, 1997)Google Scholar
  6. 6.
    A.C. Fagerlund, Recommended Maximum Valve Noise Level, in Proceedings of the ISA/86 International Conference and Exhibition (Houston, 1986)Google Scholar
  7. 7.
    H.D. Baumann, Solve valve noise and cavitation problems. Hydrocarb. Process. 76, 45–50 (1997)Google Scholar
  8. 8.
    STATOIL, Noise control in projects. Guideline, GL0563, 1st revision (Oslo, 2014)Google Scholar
  9. 9.
    J Monsen, Valve Aerodynamic Noise Reduction Strategies (Valin Corporation, 2011). [Online]. Available from: https://www.valin.com/resources/whitepapers/valve-aerodynamic-noise-reduction-strategies. Accessed 10 Feb 2019
  10. 10.
    American Petroleum Institute, API Standard 521, Pressure-Relieving and Depressuring Systems, 6th edn. (API, Washington, DC, 2014)Google Scholar
  11. 11.
    American Society of Mechanical Engineers, ASME B31.3, Process Piping (ASME, New York, 2012)Google Scholar
  12. 12.
    American Society for Test and Materials, ASTM A312, Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel (USA, 2004)Google Scholar
  13. 13.
    American Society of Mechanical Engineers (ASME), Valves-Flanged, Threaded, and Welding End (ASME, New York, 2004)Google Scholar
  14. 14.
    American Society of Mechanical Engineers (ASME), Carbon, Alloy and Stainless Steel Pipes. ASME B36.10/19 (ASME, New York, 2004)Google Scholar
  15. 15.
    Norwegian Oil and Gas Standard (NORSOK), NORSOK L-002, Piping System Layout, Design and Structural Analysis, 3rd edn (Lysaker, 2009)Google Scholar

Copyright information

© ASM International 2019

Authors and Affiliations

  1. 1.Piping EngineeringBaker Hughes, a GE CompanyHovik (Oslo Area)Norway

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