Dynamic analysis of the closed-loop transfer function in the miniature neutron source reactor (MNSR)

Hainoun, A.; Khamis, I.; Saba, G.

doi:10.1016/j.nucengdes.2004.04.003

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Therefore, reactor stability directly is affected by reactivity [8,9]. There are several methods for stability analysis of nuclear reactor having been studied before [3,10,11], such as Bode, Nyquist, Routh Hurwitz and Lyapunov second method [3,12,13]. Fu [9], Chen [14], Ergen [15] and etc studied stability analysis using Lyapunov second method.…”

Section: Introductionmentioning

confidence: 99%

Analyzing stability of neutron point kinetics equations with nine photo-neutron groups using Lyapunov exponent method

Seidi

Khodabakhsh

Behnia

2016

IJPR

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Lyapunov exponent method is one of the best tools for investigating the range of stability and the transient behavior of the dynamical systems. In beryllium-moderated and heavy water-moderated reactors, photo-neutron plays an important role in dynamic behavior of the reactor. Therefore, stability analysis for changes in the control parameters of the reactor in order to guarantee safety and control nuclear reactor is important. In this work, the range of stability has been investigated using Lyapunov exponent method in response to step, ramp and sinusoidal external reactivities regarding six groups of delayed neutrons plus nine groups of photo-neutrons. The qualitative results are in good agreement with quantitative results of other works.

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Section: Introductionmentioning

confidence: 99%

Analyzing stability of neutron point kinetics equations with nine photo-neutron groups using Lyapunov exponent method

Seidi

Khodabakhsh

Behnia

2016

IJPR

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“…In this work, a preliminary attempt to understand the stability of GHARR-1 has been carried out using the closed-looped transfer function which describes the overall dynamic behavior of the reactor including the neutronics, thermal hydraulics and reactivity feedbacks [3]. The Ghana Research Reactor-1 (GHARR-1) is a commercial version of the Chinese constructed prototype Miniature Neutron Source Reactor (MNSR) and it is similar in design to the Canadian SLOWPOKE (Safe Low Power Critical Experiment) reactors [4].…”

Section: Introductionmentioning

confidence: 99%

Stability analysis of the Ghana Research Reactor-1 (GHARR-1)

Della

Alhassan

Adoo

et al. 2013

Energy Conversion and Management

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A theoretical model has been developed to study the stability of the Ghana Research Reactor one (GHARR-1). The closed-loop transfer function of GHARR-1 was established based on the model, which involved the neutronics and the thermal hydraulics transfer functions. The reactor kinetics was described by the point kinetics model for a single group of delayed neutrons, whilst the thermal hydraulics transfer function was based on the modified lumped parameter concept. The inherent internal feedback effect due to the fuel and the coolant was represented by the fuel temperature coefficient and the moderator temperature coefficient respectively. A computer code, RESA (REactor Stability Analysis), entirely in Java was developed based on the model for systems analysis. Stability analysis of the open-loop transfer function of GHARR-1 based on the Nyquist criterion and Bode diagrams using RESA, has shown that the closed-loop transfer function was marginally stable for variable operating power levels. The relative stability margins of GHARR-1 were also identified.

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Determination of major kinetic parameters of the Syrian MNSR for different fuel loading using Monte Carlo technique

Hainoun

Hassan

Ghazi

2009

Annals of Nuclear Energy

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Dynamic analysis of the closed-loop transfer function in the miniature neutron source reactor (MNSR)

Cited by 5 publications

References 3 publications

Analyzing stability of neutron point kinetics equations with nine photo-neutron groups using Lyapunov exponent method

Analyzing stability of neutron point kinetics equations with nine photo-neutron groups using Lyapunov exponent method

Stability analysis of the Ghana Research Reactor-1 (GHARR-1)

Determination of major kinetic parameters of the Syrian MNSR for different fuel loading using Monte Carlo technique

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