Thermal-hydraulic instability of boiling natural circulation loop with a chimney (3rd report, instability at high system pressure)

Masahiro Furuya, Fumio Inada, Akira Yasuo

研究成果: Article

抄録

Experiments have been conducted to investigate thermal-hydraulic instabilities at system pressure ranging from 1 to 7.2 MPa in a boiling natural circulation loop with a chimney. Stability maps in reference to the system pressure, the channel inlet subcooling, and heat flux are presented. Two different types of instabilities were observed in the facility at relatively low and high system pressures. Both of the instability mechanisms were clarified by investigation of the transient flow pattern and the response of the driving force of the circulation to momentum energy.

元の言語English
ページ(範囲)2757-2763
ページ数7
ジャーナルNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
63
発行部数612
DOI
出版物ステータスPublished - 1997 1 1
外部発表Yes

Fingerprint

chimneys
Chimneys
hydraulics
boiling
Boiling liquids
Hydraulics
Flow patterns
Heat flux
heat flux
Momentum
flow distribution
kinetic energy
Hot Temperature
Experiments

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

これを引用

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AU - Inada, Fumio

AU - Yasuo, Akira

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AB - Experiments have been conducted to investigate thermal-hydraulic instabilities at system pressure ranging from 1 to 7.2 MPa in a boiling natural circulation loop with a chimney. Stability maps in reference to the system pressure, the channel inlet subcooling, and heat flux are presented. Two different types of instabilities were observed in the facility at relatively low and high system pressures. Both of the instability mechanisms were clarified by investigation of the transient flow pattern and the response of the driving force of the circulation to momentum energy.

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JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

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