Nuclear fuel mass

During a hypothetical severe accident in a nuclear reactor most of the radioactivity would be released from the damaged core and the broken primary circuit in the form of aerosols and chemical vapours and gases. However the effective radio-toxicity per unit release from the fuel depends both on the released mass and on the chemical form as well.

13p vironald 15-12-2022 13 4   Download

Each year, more than 10 thousand tons of spent fuels are discharged from nuclear power plants in the world. Heavy element nuclear fission reactions, at the origin of energy production, generate fission products of intermediary mass, some of them being considered nowadays as critical raw materials.

7p vironald 15-12-2022 9 3   Download

This work is intended to cross check the new capabilities of the fuel cycle scenario code TR_EVOL.This process has been divided in two stages. The first stage is dedicated to check the improvements in the nuclear fuel mass balance estimation using the available datafor the Spanish nuclear fuel cycle.

8p christabelhuynh 30-05-2020 8 1   Download

In this study, we review previous stratified steam explosion experiments as well as recent experiments performed at the KTH in Sweden. While experiments with prototypic reactor materials are minimal, we do note that generally the energetics is limited for the stratified mode of contact. When the fuel mass involved in a steam explosion in a stratified geometry is compared to a pool geometry based on geometrical aspects, one can conclude that there is a very limited set of conditions

9p minhxaminhyeu3 12-06-2019 10 1   Download

This article first presents ALCYONE V1.4 RIA-related features and modeling. It especially focuses on recent developments dedicated on the one hand to nonsteady water heat and mass transport and on the other hand to the modeling of grain boundary cracking-induced fission gas release and swelling. This article then compares some simulations of RIA transients performed on UO2-M5® fuel rods in flowing sodium or stagnant water coolant conditions to the relevant experimental results gained from tests performed in either the French CABRI or the Japanese NSRR nuclear transient reactor facilities.

12p minhxaminhyeu3 25-06-2019 20 1   Download

In the most common frequency AE used for testing, 100-300kHz, the AE sensor can detect a signal for surface movement of 10-13 m or less than one thousand times smaller than the size of an atom. As a monitoring device for structural integrity, acoustic sensors are more effective distance from a few tens of feet. It can be compared with the accelerations commonly used to assess the condition of the bridge, for example, through the techniques of method analyzed.

184p lulanphuong 27-03-2012 78 13   Download