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Nuclear Fuel Cell Calculation Using Collision Probability Method with Linear Non Flat Flux Approach

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DOI: 10.4236/wjnst.2012.22008    4,051 Downloads   7,663 Views Citations

ABSTRACT

Nuclear fuel cell calculation is one of the most complicated steps of neutron transport problems in the reactor core. A few numerical methods use neutron flat flux (FF) approximation to solve this problem. In this approach, neutron flux spectrum is assumed constant in each region. The solution of neutron transport equation using collision probability (CP) method based on non flat flux (NFF) approximation by introducing linear spatial distribution function implemented to a simple cylindrical annular cell has been carried out. In this concept, neutron flux spectrum in each region is different each other because of an existing of the spatial function. Numerical calculation of the neutron flux in each region of the cell using NFF approach shows a fairly good agreement compared to those calculated using existing SRAC code and FF approach. Moreover, calculation of the neutron flux in each region of the nuclear fuel cell using NFF approach needs only 6 meshes which give equivalent result when it is calculated using 24 meshes in FF approach. This result indicates that NFF approach is more efficient to be used to calculate the neutron flux in the regions of the cell than FF approach.

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M. Ali Shafii, Z. Su’ud, A. Waris and N. Kurniasih, "Nuclear Fuel Cell Calculation Using Collision Probability Method with Linear Non Flat Flux Approach," World Journal of Nuclear Science and Technology, Vol. 2 No. 2, 2012, pp. 49-53. doi: 10.4236/wjnst.2012.22008.

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