遠心ポンプのヘッドおよびトルクの二相流定常特性実験

• 湊 明彦

  (株)日立製作所エネルギー研究所

• 富永 研司

  (株)日立製作所日立工場

書誌事項

タイトル別名

• Experiments of steady state head and torque of centrifugal pumps in two-phase flow.

抄録

Circulation pump behavior has large effect on coolant discharge flow rate in case of reactor pipe break. Experiment of two-phase pump performance was conducted as a joint study of Japanese BWR user utilities and makers.<br>Two-phase head and torque of three centrifugal pumps in high temperature and high pressure (around 6 MPa) steam/water were measured. Head was decreased from single-phase characteristics when gas was mixed in liquid flow in condition with normal flow and normal rotation directions. When flow rate was large enough, two-phase head was about the same as single-phase one in reversal flow conditions. Two-phase head was smoothly increased as flowing steam volumetic concentration increased when flow rate was small and flow direction was reversal. Changes of torque with gas concentration were correspondent to those of head. This suggested that changes of interaction between flow and impellers due to phase slip effected on torque which caused head differences between single- and two-phase flows. Dependence of dimensionless head and torque of three test pumps on steam concentration were almost the same as each other.

収録刊行物

• 日本原子力学会誌

  日本原子力学会誌 30 (3), 247-256, 1988

  一般社団法人 日本原子力学会

キーワード

• blowdown
• two-phase flow
• head
• torque
• specific speed
• pump performance
• void fraction
• homologous curve
• pump speed
• centrifugal pumps
• flow rate

詳細情報

• CRID: 1390001206552285568
• NII論文ID: 130003747016
• DOI: 10.3327/jaesj.30.247
• ISSN: 21865256
• ISSN: 00047120
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可