Model analysis of isotopic composition of VVER-440 spent nuclear fuel

• Autorzy: Čudrnák, P. , Nečas, V.
• Języki publikacji: EN

Abstrakty

EN

This paper presents an analysis of the isotopic composition of spent nuclear fuel under different operating conditions. Calculations were made for fuel assemblies of a VVER-440 reactor with second-generation Gd-2 fuel with enrichment of 4.25% 235U. The isotopic concentration was analyzed as a function of burnup of nineteen isotopes, selected on the basis of environmental risk, such as main fuel isotopes 235U, 236U, 238U, 239Pu, 240Pu, 241Pu, as well as some actinides, and fission products, such as 237Np, 238Pu, 242Pu, 241Am, 242Am, 242Cm, 244Cm, 245Cm, 90S r, 93Zr, 99Tc, 129I, 137Cs. The SCALE 6 computer code was used for model design and computer analysis.

Słowa kluczowe

PL

układ izotopowy; VVER-440; paliwo jądrowe wypalone

EN

isotopic composition; VVER-440; spent nuclear fuel

• Czasopismo: Journal of Power Technologies
• Rocznik: 2011
• Tom: Vol. 91, nr 3
• Strony: 136-139
• Opis fizyczny: Bibliogr. 6 poz., tab., rys., wykr.

Twórcy

autor

Čudrnák, P.

autor

Nečas, V.

• Slovak University of Technology in Bratislava, Department of Nuclear Physics and Technology, Ilkovicova 3, 81219 Bratislava, Slovakia,

Bibliografia

• [1] E. Amaral, K. Brockman, H. Forsstrom, International perspectives on spent fuel management, in: International conference Management of Spent Fuel from Nuclear Power Reactors, Vienna, 2006, pp. 17-29.
• [2] Nuclear power reactors, http://www.worldnuclear. org/info/inf32.htm (April 2009).
• [3] Plans for new reactors worldwide, http://www.worldnuclear. org/info/inf17.htm (August 2010).
• [4] Y. Kovbasenko, Y. Bilodid, M. Yeremenko, Comparative analysis of isotope composition of VVER-1000 spent fuel depending on their manufactory and operation conditions, in: The 7th International Conference on Nuclear Criticality Safety, Tokaimura, 2003, pp. 661-665.
• [5] E. Schneider, M. Deinert, K. Cady, A computationally simple model for determining the time dependent spectral neutron flux in a nuclear reactor core, Journal of Nuclear Materials 357 (2006) 19-30.
• [6] P. Čudrnák, V. Nečas, Minimalization of uneven power distribution in VVER-440 fuel assembly with gadolinium (in slovak), in: XI Banská Štiavnica days Application of atomic energy for peaceful purposes, Banská Štiavnica, 2009, pp. 63-74.