Minor actinides impact on basic safety parameters of medium-sized sodium-cooled fast reactor

• Autorzy: Darnowski P. , Uzunow N.

Identyfikatory

DOI

10.1515/nuka-2015-0034

• Konferencja: All-Polish Seminar on Mössbauer Spectroscopy OSSM 2014 (10th ; 15-18.06.2014 ; Wrocław, Poland)
• Języki publikacji: EN

Abstrakty

EN

An analysis of the infl uence of addition of minor actinides (MA) to the fast reactor fuel on the most important safety characteristics was performed. A special emphasis was given to the total control rods worth in order to describe qualitatively and quantitatively its change with MA content. All computations were performed with a homogeneous assembly model of modifi ed BN-600 sodium-cooled fast reactor core with 0, 3 and 6% of MA. A model was prepared for the Monte Carlo neutron transport code MCNP5 for fresh fuel in the beginning-oflife (BOL) state. Additionally, some other parameters, such as Doppler constant, sodium void reactivity, delayed neutron fraction, neutron fl uxes and neutron spectra distribution, were computed and their change with MA content was investigated. Study indicates that the total control rods worth (CRW) decreases with increasing MA inventory in the fuel and confi rms that the addition of MA has a negative effect on the delayed neutron fraction.

Słowa kluczowe

EN

fast reactor safety; MCNP5; sodium-cooled fast reactor; nuclear waste transmutation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 1
• Strony: 171--179
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Darnowski P.

• Institute of Heat Engineering, Warsaw University of Technology, 21/25 Nowowiejska Str., 00-665, Warsaw, Poland, Tel./Fax: [phone]

autor

Uzunow N.

• Institute of Heat Engineering, Warsaw University of Technology, 21/25 Nowowiejska Str., 00-665, Warsaw, Poland, Tel./Fax: [phone]

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