Pressure pulsations in piping systems excited by a centrifugal compressor (1st report, evaluation model and characteristics of pressure pulsations under resonant conditions)

Itsuro Hayashi, Shigehiko Kaneko

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Pressure pulsations in piping systems excited by a centrifugal compressor or fan at blade passing frequency were investigated by experiment and numerical simulation. A one-dimensional pressure excitation source model for a compressor was proposed based on the equation of motion, to establish the practical evaluation method for pressure pulsations in piping systems. As a result Of experiment, the maximum pressure amplitude in a piping system increased as the location of a compressor was close to the node of the pressure distribution of the resonant mode. This relation between the maximum pressure amplitude in piping systems and the location of an excitation source under resonant conditions can be evaluated by introducing the equivalent resistance of a compressor and that of piping systems. The role of the system resistance to the response of pressure pulsations was discussed in detail.

Original languageEnglish
Pages (from-to)2255-2262
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume73
Issue number8
Publication statusPublished - 2007 Aug 1
Externally publishedYes

Fingerprint

Centrifugal compressors
Piping systems
Compressors
Pressure distribution
Turbomachine blades
Fans
Equations of motion
Experiments
Computer simulation

Keywords

  • Blade passing frequency
  • Centrifugal compressor
  • Centrifugal fan
  • Damping
  • Pressure pulsation
  • Resonance

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

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AU - Kaneko, Shigehiko

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AB - Pressure pulsations in piping systems excited by a centrifugal compressor or fan at blade passing frequency were investigated by experiment and numerical simulation. A one-dimensional pressure excitation source model for a compressor was proposed based on the equation of motion, to establish the practical evaluation method for pressure pulsations in piping systems. As a result Of experiment, the maximum pressure amplitude in a piping system increased as the location of a compressor was close to the node of the pressure distribution of the resonant mode. This relation between the maximum pressure amplitude in piping systems and the location of an excitation source under resonant conditions can be evaluated by introducing the equivalent resistance of a compressor and that of piping systems. The role of the system resistance to the response of pressure pulsations was discussed in detail.

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