Model of the IBR-2M pulsed reactor dynamics for investigating transition processes in a wide range of power variation

Pepyolyshev, Yu.N.; Popov, A. K.; Sumkhuu, D.

doi:10.1016/j.anucene.2015.06.002

Cited by 14 publications

(6 citation statements)

References 4 publications

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“…In 2017, Pepelyshev analyzed the transient processes caused by intentional periodic oscillations of the reactivity and investigated the fast feedback parameters of IBR-2M (Pepelyshev et al, 2017). In 2015, Pepelyshev simulated the transitional processes at a wide range of reactivity change and power change, and the result is in good accordance with the detected one (Pepelyshev et al, 2015). In 2010, Chan and Pepelyshev studied the IBR-2 dynamics with power shedding (Chan and Pepelyshev, 2010).…”

Section: Introductionmentioning

confidence: 72%

“…Reactor dynamics plays a very important role for the fast periodic pulsed reactor. So far, lots of research have been performed on the dynamics for the IBR-2 type reactor (Pepelyshev and Popov, 2006a;Pepelyshev and Popov, 2006b;Chan and Pepelyshev, 2008;Chan and Pepelyshev, 2010;Pepelyshev et al, 2015;Pepelyshev et al, 2017;Brezhnev et al, 2017). In this article, the critical search method for studying reactor dynamics is established based on the basic characteristics of the fast periodic pulsed reactor.…”

Section: Reactor Dynamicsmentioning

confidence: 99%

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Feasibility Study for the Fast Periodic Pulsed Reactor with UO2 Fuel

et al. 2021

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In order to study the feasibility of the fast periodic pulsed reactor with UO2 as fuel (abbreviated as FPPRU), the core models with different load schemes are designed. Neutronic characteristics of two typical design schemes are compared, and the better design scheme is determined. The critical search method is established for analyzing the reactor dynamics. Furthermore, the theoretical estimation formulas are derived to study the factors affecting the reactor dynamics clearly and intuitively. The reactor dynamics of the fast periodic pulsed reactor with UO2 and PuO2 as fuel are compared. The thermal hydraulic characteristic of FPPRU is studied with the sub-channel model. The results show that the design scheme of the FPPRU meets the demand of neutronics and thermal hydraulics safety. Meanwhile, the pulse parameter quality of the FPPRU with UO2 as fuel is not as good as that of IBR-2 with PuO2 as fuel.

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Section: Introductionmentioning

confidence: 72%

Section: Reactor Dynamicsmentioning

confidence: 99%

Feasibility Study for the Fast Periodic Pulsed Reactor with UO2 Fuel

et al. 2021

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“…When the reflector blades are not aligned with the fuel, the power reduces to 0.16 MW. The reactor is used for experimental research in different physics areas, including: condensed matter, biology, chemistry, and material science [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] .…”

Section: Introductionmentioning

confidence: 99%

IBR-2M Reactor Modeling with MCNP, SERPENT, CUBIT, and GIMP Computer Programs

Talamo

Gohar

Zhang

et al. 2018

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is a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC under contract DE-AC02-06CH11357. The Laboratory's main facility is outside Chicago, at 9700 South Cass Avenue, Argonne, Illinois 60439. For information about Argonne and its pioneering science and technology programs, see www.anl.gov. DOCUMENT AVAILABILITYOnline Access: U.S. Department of Energy (DOE) reports produced after 1991 and a growing number of pre-1991 documents are available free at OSTI.GOV (http://www.osti.gov/), a service of the US Dept. of Energy's Office of Scientific and Technical Information.

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“…where k b and E 0 are a constant parameters [1]. W A ( jω), W si ( jω) and W T j ( jω) denote the transfer functions of the automatic regulator, the i-th delayed neutrons group and the j-th power feedback component, respectively.…”

Section: Stability Analysis Of the Ibr-2m Reactor Operation With The mentioning

confidence: 99%

“…As the reflectors move away from the reactor core, the reactor becomes deeply sub-critical. The controlled parameter of the reactor is the energy deviation of the power pulse E p from its basic value E 0 p in relative units (∆e p = (E p − E 0 p )/E 0 p ) [1]. The basic value is the average amplitude corresponding to the stationary regime, i.e., the regime in which the reactor average power is generally constant [2]- [4].…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of the IBR-2M Pulsed Reactor in Automatic Regulated Regime at Various Levels of Average Power

2018

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Abstract. The IBR-2M pulse reactor is characterized by a high level of reactivity fluctuations and consequently by a high level of fluctuations in the regulated parameter as well as in the amplitude of the power pulses. Fluctuations of the regulated parameter relative to the average level in the standard stabilization regime usually fall within the range of 20% with certain peaks up to 40%, which is close to the limits of the emergency protection operation (50%). Under these conditions the automatic regulator may receive contradictory requirements. In this paper, the results of stability analysis of the IBR-2M reactor in the automatic regulating regime at various levels of average power are presented. It is shown that stability margins of the amplitude and the phase are enough, especially for the IBR-2M reactor operation with automatic regulator.

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Model of the IBR-2M pulsed reactor dynamics for investigating transition processes in a wide range of power variation

Cited by 14 publications

References 4 publications

Feasibility Study for the Fast Periodic Pulsed Reactor with UO2 Fuel

Feasibility Study for the Fast Periodic Pulsed Reactor with UO2 Fuel

IBR-2M Reactor Modeling with MCNP, SERPENT, CUBIT, and GIMP Computer Programs

Stability Analysis of the IBR-2M Pulsed Reactor in Automatic Regulated Regime at Various Levels of Average Power

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