Study on an open fuel cycle of IVG.1M research reactor operating with LEU-fuel
Study on an open fuel cycle of IVG.1M research reactor operating with LEU-fuel
Irkimbekov Ruslan А.(Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan); Surayev Artur S.(Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan); Vityuk Galina А.(Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan); Zhanbolatov Olzhas M.(Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan); Kozhabaev Zamanbek B.(Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan); Bedenko Sergey V.(Tomsk Polytechnic University); Ghal-Eh Nima(Ferdowsi University of Mashhad); Vurim Alexander D.(Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan)
55권 4호, 1439~1447쪽
초록
The fuel cycle characteristics of the IVG.1M reactor were studied within the framework of the research reactor conversion program to modernize the IVG.1M reactor. Optimum use of the nuclear fuel and reactor was achieved through routine methods which included partial fuel reloading combined with scheduled maintenance operations. Since, the additional problem in planning the fuel cycle of the IVG.1M reactor was the poisoning of the beryllium parts of the core, reflector, and control system. An assessment of the residual power and composition of spent fuel is necessary for the selection and justification of the technology for its subsequent management. Computational studies were performed using the MCNP6.1 program and the neutronics model of the IVG.1M reactor. The proposed scheme of annual partial fuel reloading allows for maintaining a high reactor reactivity margin, stabilizing it within 2–4 βeff for 20 years, and achieving a burnup of 9.9–10.8 MW × day/kg U in the steady state mode of fuel reloading. Spent fuel immediately after unloading from the reactor can be placed in a transport packaging cask for shipping or safely stored in dry storage at the research reactor site.
Abstract
The fuel cycle characteristics of the IVG.1M reactor were studied within the framework of the research reactor conversion program to modernize the IVG.1M reactor. Optimum use of the nuclear fuel and reactor was achieved through routine methods which included partial fuel reloading combined with scheduled maintenance operations. Since, the additional problem in planning the fuel cycle of the IVG.1M reactor was the poisoning of the beryllium parts of the core, reflector, and control system. An assessment of the residual power and composition of spent fuel is necessary for the selection and justification of the technology for its subsequent management. Computational studies were performed using the MCNP6.1 program and the neutronics model of the IVG.1M reactor. The proposed scheme of annual partial fuel reloading allows for maintaining a high reactor reactivity margin, stabilizing it within 2–4 βeff for 20 years, and achieving a burnup of 9.9–10.8 MW × day/kg U in the steady state mode of fuel reloading. Spent fuel immediately after unloading from the reactor can be placed in a transport packaging cask for shipping or safely stored in dry storage at the research reactor site.
- 발행기관:
- 한국원자력학회
- 분류:
- 원자력공학