吹込みノズルによる遠心圧縮機のサージングの制御 : 吹込み効果に対する圧力比の影響

• 新 僚介

書誌事項

タイトル別名

• CONTROL OF SURGE IN CENTRIFUGAL COMPRESSOR BY USING NOZZLE INJECTION SYSTEM : INFLUENCE OF PRESSURE RATIO ON INJECTION EFFECT

抄録

type:Article

In this study, the performance tests for the centrifugal compressor with the nozzle injection system were carried out by changing the circumferential position of the nozzle at the rotation speeds of 70,000 rpm and 80,000 rpm in order to clarify the suppression effect of the surge by the nozzle injection system at the high pressure ratio condition which is closer to the practical operating condition exceeding the pressure ratio of 1.3. The examinations were made focusing on the correlation among the pressure recovery rate and the circumferential distribution of static pressure in the annular vaneless diffuser and the reduction rate of the flow rate at the onset of surge by comparing with experimental results at 50,000 rpm and 60,000 rpm. The present experiment results showed that the effective injection position distributed in the range of angle from the scroll tongue to 180 degrees in the impeller rotational direction irrespective of the rotation speed. It was also revealed that the most effective shape of the distribution of the pressure recovery rate in the diffuser was independent of the rotation speed.

収録刊行物

• 法政大学大学院紀要. 理工学・工学研究科編

  法政大学大学院紀要. 理工学・工学研究科編 60 1-8, 2019-03-31

  法政大学大学院理工学研究科

キーワード

• Centrifugal Compressor
• Nozzle Injection
• Surge
• Pressure Recovery Rate
• Diffuser

詳細情報

• CRID: 1390009224824889216
• NII論文ID: 120006714935
• NII書誌ID: AA12677220
• ISSN: 21879923
• DOI: 10.15002/00021959
• Web Site: http://hdl.handle.net/10114/00021959
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles