SURGE CONTROL FOR CENTRIFUGAL COMPRESSOR BY USING A NOZZLE INJECTION SYSTEM : MECHANISM OF CONTROLLING INSTABILITY PHENOMENA

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Other Title
  • 吹込みによる遠心圧縮機のサージング制御 : 不安定現象抑制メカニズムの解明

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Abstract

As a control method of the instability phenomena, a nozzle injection system of a passive control method has been proposed. In this system, a part of the flow at the compressor outlet is re-circulated to the injection nozzle installed of the suction pipe through the bypass pipe and injected to the impeller inlet. In the present study, experimental measurements for turbocharger were carried out in order to investigate the mechanism of controlling the rotating stall and the surge in the centrifugal compressor by using the nozzle injection system. The present experimental results suggested that the nozzle injection extends the stable operating range of entire compressor system to the low flow rate region by controlling the mild surge. Moreover, the nozzle injection suppresses the growth of rotating stall by increasing the flow rate in the diffuser.

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Details 詳細情報について

  • CRID
    1390290699807357312
  • NII Article ID
    120005524549
  • NII Book ID
    AA12677220
  • DOI
    10.15002/00010376
  • HANDLE
    10114/9625
  • ISSN
    21879923
  • Text Lang
    ja
  • Data Source
    • JaLC
    • IRDB
    • CiNii Articles
  • Abstract License Flag
    Allowed

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