This study proposes a method to measure pressure pulsations in piping systems easily and directly for their accurate evaluation of occurrence location and pressure amplitude. In the proposed method, the pulsations were estimated by combining the strain measurement result on the pipe outer surface with the calculated formula result for thick-walled cylinders. The proposed method was validated experimentally using a mock-up piping system. It was demonstrated that the method could measure the amplitudes and behavior of pressure pulsations with a practical accuracy. The factors influencing the measurement accuracy of the method were also discussed. The method is expected to contribute to more efficient plant maintenance to prevent fatigue failure of piping and plant components because the pulsations that the method measures are the main cause of vibration fatigue and acoustic noise in piping systems.
A Simple Measurement Method of Pressure Pulsations Using Outer Surface Strain in Piping Systems
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received January 25, 2015; final manuscript received February 6, 2016; published online March 11, 2016. Assoc. Editor: Allen C. Smith.
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Maekawa, A., Tsuji, T., Takahashi, T., and Kato, M. (March 11, 2016). "A Simple Measurement Method of Pressure Pulsations Using Outer Surface Strain in Piping Systems." ASME. J. Pressure Vessel Technol. June 2016; 138(3): 031702. https://doi.org/10.1115/1.4032785
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