Numerical approach for predicting the decay heat contribution of curium isotopes in the mixed oxide nuclear fuel

Nafee, Sherif S.; Shaheen, S.; Alramady, Amir M.

doi:10.1016/j.nucengdes.2013.04.040

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…By using the aforementioned method (Summation Method), the burst function ( ) f t (decay heat) of the fission products after the fission burst were calculated for each of the three fissile nuclei in the MOX fuel U 235 , Pu 239 , and Pu 241 using Equations ( 4)- (6), respectively. In addition, the average decay heat of MOX fuel ( ) MOX f t can be calculated by using Equation (15). Moreover, Figure 8 shows a comparison of the calculated total decay heat of the three fissionable nuclei U 235 , Pu 239 , and Pu 241 , with the predicted total decay of MOX fuel averaged over 100 fissions.…”

Section: Resultsmentioning

confidence: 99%

Prediction of the Average Decay Heat per Fission for MOX Nuclear Fuel

Alramady¹,

Barashed²,

Nafee³

2022

JAMP

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Section: Resultsmentioning

confidence: 99%

Prediction of the Average Decay Heat per Fission for MOX Nuclear Fuel

Alramady¹,

Barashed²,

Nafee³

2022

JAMP

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Analysis of Fission Fragments Contributors on Total Decay Heat of Thermal Neutron-Induced Fission of U-235

Alramady¹

2022

JAMP

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Calculation of the decay heat from the decay/buildup of radionuclides generated after nuclear fission is one of the highest priorities in the nuclear industry. These calculations become more important if they are made together with the analysis of the most important isotopes affecting the decay heat. They are useful in designing the necessary nuclear safety for spent fuels, and their importance cannot be overlooked in the designs of transporting fuel storage containers as well as in the management of the radioactive waste generated. In this paper, by using MATLAB, the decay heat after the thermal fission of a U-235 nucleus was numerically calculated by solving linear differential equations for all the buildups/decays of the fission products. Also, the most contribution of radioactive isotopes to the decay heat was analyzed by using Microsoft Excel. The most influential isotopes were deduced in two ways; either by calculating the most influential isotopes at specific times, or by determining the largest influences in a cumulative manner. All required nuclear data such as decay constants their branching ratios, independent fission yield, and average α-, β-, and γ-energies released per disintegration of any nuclide, have

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