Transfer function measurements in JOYO by pile oscillator method.
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概要
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Using the pile oscillator technique, the reactor transfer functions of the experimental fast reactor "JOYO" were examined to ascertain reactor stability and to elucidate the reactor feedback mechanism. Measurements were made in the frequency range of 0.001 to 3 Hz at various reactor power levels. Major results were as follows :<BR>(1) Satisfactory agreement obtained between the zero-power transfer function measure-ments and calculations made by one point reactor model with six delayed neutron groups.<BR>(2) Reactor stability confirmed from measurements of at-power frequency responses ; large negative feedback effect (•.85$/<I>Δφ</I>/<I>φ</I> at 50 MWt) observed.<BR>(3) Feedback transfer function and transfer function between neutron flux and outlet temperature at the central fuel subassembly found expressible in approximation by first-order lag model with a time constant of about 3.5 s.
- 一般社団法人 日本原子力学会の論文
著者
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YAMAMOTO Hisashi
Oarai Engineering Center, Power Reactor and Nuclear Fuel Development Corp.
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SANO Kenichi
Oarai Engineering Center, Power Reactor and Nuclear Fuel Development Corp.
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SANDA Toshio
Oarai Engineering Center, Power Reactor and Nuclear Fuel Development Corp.
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MAKIDO Masanori
Oarai Engineering Center, Power Reactor and Nuclear Fuel Development Corp.
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OTANI Hideji
Oarai Engineering Center, Power Reactor and Nuclear Fuel Development Corp.
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TAMURA Seiji
Oarai Engineering Center, Power Reactor and Nuclear Fuel Development Corp.