| Project/Area Number |
61420048
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| Research Category |
Grant-in-Aid for General Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
KANDA Keiji KURRI, Associate Professor, 原子炉核特性研究部門, 助教授 (10027419)
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| Co-Investigator(Kenkyū-buntansha) |
YONEDA Kenji KURRI, Research Associate, 原子炉研究部門, 助手 (10027443)
MISHIMA Kaichiro KURRI, Associate Professor, 原子炉熱特性管理研究部門, 助教授 (60027472)
FUJINE Shigenori KURRI, Research Associate, 原子炉研究部門, 助手 (90027441)
NISHIHARA Hideaki KURRI,Professor, 原子炉熱特性管理研究部門, 教授 (50025920)
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| Project Period (FY) |
1986 – 1987
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| Project Status |
Completed (Fiscal Year 1987)
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| Budget Amount *help |
¥21,400,000 (Direct Cost: ¥21,400,000)
Fiscal Year 1987: ¥9,000,000 (Direct Cost: ¥9,000,000)
Fiscal Year 1986: ¥12,400,000 (Direct Cost: ¥12,400,000)
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| Keywords | Neutron Radiography / Neutron Television / Digital Image Processing / Gas-Liquid Two-Phase Flow / Flow Regime / Void Fraction / 気液界面積 / イメージインテンシファイア / 気液界面積濃度 |
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| Research Abstract |
High sensitive and high resolution real-time neutron radiography system has been developed and attached to the Kyoto University Research Reactor (KUR).
In academic year 1986, an optical method has been developed to observe gas-liquid two-phase flow. By using a high speed video system and digital image processing technique, flow regimes were observed and average void fraction and gas-liquid interfacial area were measured.
In academic year 1987, a gas-liquid flow in an aluminum duct was measured, which can not be measured by conventional methods such as an X-ray radiography method. In the measurement of void fraction, the new method of neutron radiography agreed well with the former ways, such as the optical method and the conductance probe method. The relation between gas velocity and mixture volumetric flux was also measured and compared with the drift flux correlation. The agreement was good for wide liquid velocity range.
For the future study, we have plans to improve image quality by using a high quality fluoresent converter and a high flux neutron source, and to measure the gas-liquid two-phase flow in a steal heater duct.
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