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TECHNICAL PAPERS

Dynamic Behavior of Transportation Pressure Relief Valves Under Simulated Fire Impingement Conditions

[+] Author and Article Information
A. J. Pierorazio, A. M. Birk

Mechanical Engineering, Queen’s University, Kingston, Ontario, K7L 3N6, Canada

J. Pressure Vessel Technol 122(1), 60-65 (Oct 25, 1999) (6 pages) doi:10.1115/1.556151 History: Received March 20, 1998; Revised October 25, 1999
Copyright © 2000 by ASME
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References

Birk, A. M., and Cunningham, M. H., 1994, “A Medium-Scale Experimental Study of the Boiling Liquid Expanding Vapor Explosion (BLEVE),” TP 11995E, Transport Canada.
Birk,  A. M., and Cunningham,  M. H., 1996, “Liquid Temperature Stratification and its Effect on BLEVEs and Their Hazards,” J. Hazardous Mater., 48, pp. 219–237.
Pierorazio, A. J., and Birk, A. M., 1996, “Evaluation of Dangerous Goods Pressure Relief Valve Performance Phase 2: Air Test Results,” TP No. 12978E, Transport Canada.
Pierorazio, A. J., and Birk, A. M., 1997, “Evaluation of Dangerous Goods Pressure Relief Valve Performance Phase 2 Steam-Based Tests: Preliminary Results,” TP No. pending, Transport Canada.
ASME, 1986, Boiler and Pressure Vessel Code. An American National Standard, Section VIII, Division I, UG-125 to UG-136 and Appendix XI, American Society of Mechanical Engineering.
ASME, 1986, Boiler and Pressure Vessel Code, An American National Standard, Section VIII, Division II, Part AR: “Pressure Relief Devices,” American Society of Mechanical Engineering.
ASME, 1988, “Safety and Relief Valves Performance Test Code,” PTC25.3-1988, American Society of Mechanical Engineering.

Figures

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Typical A312-1 series pressure and mass flow results at 1.0 psi/s (nominal) ramp rate
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Typical B312-1 series pressure and mass flow results at 1.0 psi/s (nominal) ramp rate
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Typical C312-1 series pressure and mass flow results at 1.0 psi/s (nominal) ramp rate
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Illustration of uneven cycling
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Illustration of cycle to continuous venting
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Illustration of “soft” popping behavior (A312-1 series)
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Illustration of uneven operating pressures
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A312-1 series cycling frequency variation with pressurization rate
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B312-1 series cycling frequency variation with pressurization rate
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C312-1 series cycling frequency variation with pressurization rate
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Cycle shape changes as a function of pressurization rate
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Typical flow test result
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Summary of flow test results
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Peak flow ratios by valve series
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Peak flow ratios as a function of pressurization

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