Analysis of Nuclear Power Transmutation Potential at Equilibrium

Salvatores, M.; Slessarev, I.; Tchistiakov, A.

doi:10.13182/nse96-a28578

Cited by 16 publications

(4 citation statements)

References 3 publications

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“…80% of all the fissions happen on 233 U. If its capture cross section uncertainty reaches the 10% as proposed by G. Palmiotti et al [10], the uncertainty on the BG could be as high as 4%, which reduces a lot the reliability of any numerical simulation. This paper aim is to confirm the high sensitivity of BG to 233 U capture cross section, due to the k eff control system and the reach of the fuel equilibrium.…”

Section: Breeding Gain Uncertaintymentioning

confidence: 97%

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Direct sensitivity analysis to nuclear data of thorium molten salt reactors at equilibrium using MURE

Bidaud

Méplan

Nuttin

et al. 2007

Nd2007

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Abstract. In this paper we propose to use the MURE (MCNP Utility for Reactor Evolution) package to calculate directly nuclear data sensitivities of the breeding gain of a thorium molten salt reactor. The continuous fuel reprocessing is used to control reactivity. This control coupled with the fact that the fuel has reached its equilibrium, induces feedback effects on nuclear data sensitivities. That is why sensitivities are calculated directly by recalculating the fuel equilibrium of a simplified model after modifications of the ACE files for the reactions that are expected to have the strongest contribution to the uncertainty: 233U capture cross section and neutron fission yield.

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Section: Breeding Gain Uncertaintymentioning

confidence: 97%

“…The effect of the equilibrium can be studied using the D factors [10] which count the number of neutrons produced by the destruction of one heavy nuclide by fission. The effect of the equilibrium has been found [4] to bring only minor corrections to the following approximation of the BG in a critical reactor:…”

Section: Breeding Gain Uncertaintymentioning

confidence: 99%

Direct sensitivity analysis to nuclear data of thorium molten salt reactors at equilibrium using MURE

Bidaud

Méplan

Nuttin

et al. 2007

Nd2007

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“…In addition, it is necessary to consider the neutron potential and to quantify the number of neutrons available for the transmutation or breeding process. This D-value approach (Salvatores et al, 1996 and allows to asses the capability to operate at critical conditions and to produce the excess of neutrons needed for transmutation. It is based on the probabilistic approach applied to the cores at equilibrium.…”

Section: Physical Aspects Of Materials Recyclingmentioning

confidence: 99%

Management of Recyclable Fissile and Fertile Materials

Bertel¹,

Dujardin²

2007

Nuclear Development

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The OECD is a unique forum where the governments of 30 democracies work together to address the economic, social and environmental challenges of globalisation. The OECD is also at the forefront of efforts to understand and to help governments respond to new developments and concerns, such as corporate governance, the information economy and the challenges of an ageing population. The Organisation provides a setting where governments can compare policy experiences, seek answers to common problems, identify good practice and work to coordinate domestic and international policies.

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“…Some more detailed studies on the intercomparison of the HLW transmutation potential of dierent reactor technologies have been published [70,300,301,302,305]. These studies also agree in the advantages of fast reactor technology and hence, most concepts of transmutation reactors are based on fast systems.…”

Section: Nuclear Ssion Reactorsmentioning

confidence: 85%

Evaluation of reactivity monitoring techniques at the Yalina – Booster subcritical facility

Palacios¹

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sionalism and hard work during the experiments, I would like to highlight their kindness in making us having a agreeable stay at Belarus. I wish to acknowledge as well the institutions that have provided nancial support for the work carried out during this PhD thesis: the EU 6th Framework program through IP-EUROTRANS Contract No. FI6W-CT2005-516520 and the ENRESA-CIEMAT agreement for the Transmutation Applied to High Level Radioactive Waste.Third, I want to thank as well all the colleagues from the Nuclear Innovation Unit and Nuclear Fission Division at CIEMAT during all these years, for all that I have learned with them and all the help they have provided at many instances, which would be endless to detail. In particular, special thanks to those that have revised the manuscript: Manuel Fernández-Ordóñez, Francisco Álvarez-Velarde and Juan Blázquez. I am also indebted to the administrative and services sta at CIEMAT for their usually invisible, albeit indispensable, assistance in many daily tasks. In particular, I would like to mention the Documentation Service for their help in nding many of the bibliographic references of this thesis.And nally, last but not least, I would like to acknowledge my family for all their support during all these years.

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Analysis of Nuclear Power Transmutation Potential at Equilibrium

Cited by 16 publications

References 3 publications

Direct sensitivity analysis to nuclear data of thorium molten salt reactors at equilibrium using MURE

Direct sensitivity analysis to nuclear data of thorium molten salt reactors at equilibrium using MURE

Management of Recyclable Fissile and Fertile Materials

Evaluation of reactivity monitoring techniques at the Yalina – Booster subcritical facility

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