The Effect on Neutronic Calculations of Certain Alternative Fuels in a Boiling Water Reactor by Using MCNPX Monte Carlo Method

Günay, Mehtap; Espinoza, Víctor Hugo Sánchez; Travleev, A.

doi:10.12693/aphyspola.128.b-110

Cited by 7 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pin cell geometry in the small square lattice of the designed BWR system is shown in Fig. 3 19 . 49 fuel rods inside every small square lattice and 196 fuel rods inside every square lattice were placed in the designed BWR system.…”

Section: Methodsmentioning

confidence: 99%

The effect of different fuels and clads on neutronic calculations in a boiling water reactor using the Monte Carlo method

Düz

Inal

2020

Sci Rep

View full text Add to dashboard Cite

In this study, a Boiling Water Reactor (BWR) modeling was done for the reactor core divided into square lattice 8 × 8 type using the Monte Carlo Method. Each of the square lattices in the reactor core was divided into small square lattices 7 × 7 type in groups of four. In the BWR designed in this study, modeling was made on fuel assemblies at pin-by-pin level by using neptunium mixed fuels as fuel rod, Zr-2 and SiC as fuel cladding, H2O as coolant. In fuel rods were used NpO2 and NpF4 fuels at the rate of 0.2%-1% as neptunium mixed fuels. In this study, the effect on the neutronic calculations as keff, neutron flux, fission energy, heating of NpO2 and NpF4 fuels in 0.2%-1% rates, and Zr-2 and SiC clads were investigated in the designed BWR system. The three-dimensional (3-D) modelling of the reactor core and fuel assembly into the designed BWR system was performed by using MCNPX-2.7.0 Monte Carlo method and the ENDF/B-VII.0 nuclear data library.

show abstract

Section: Methodsmentioning

confidence: 99%

The effect of different fuels and clads on neutronic calculations in a boiling water reactor using the Monte Carlo method

Düz

Inal

2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…2, we can see the trajectory and interaction volume of X-rays in a sample. Various simulation investigations and estimation studies on medical applications and for other aims such as computational methods are found in literature [7][8][9][10][11][12][13][14][15][16][17][18][19]. A schematic representation of modelled geometry is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

Quantitative Characteristic X-Ray Analysis for Different Compound Samples by Using Monte Carlo Method

et al. 2017

View full text Add to dashboard Cite

X-ray spectrometry is an elemental analysis technique with broad application in science and industry. It is based on the principle that individual atoms, when excited by an external energy source emit X-ray photons of a characteristic energy or wavelength. Here we obtained the characteristic X-ray peaks of different brass compounds and compared the intensity of characteristic peaks by changing with Zn rate. In this study we modelled different brass samples by using Monte Carlo method and changed the zinc rate in brass samples for each compound. We obtained the characteristic X-ray peaks of different compounds and compared the intensity of characteristic peaks by changing with Zn rate. We achieved a good agreement between peak intensity and corresponding element rate in compound. Also we obtained that characteristic peak rate increases by corresponding element rate in compound. This study shows that Monte Carlo method is very effective method to simulate material features due to their characteristic peaks and their intensities. DOI: 10.12693/APhysPolA.132.439 PACS/topics: Monte Carlo, characteristic X-ray, brass 1. Introduction X-rays occur when the fast electrons interact with matter. During this process, kinetic energy of electrons is basically converted into heat energy but some is also converted into electromagnetic energy in the form of photons. X-ray photons are a form of electromagnetic radiation produced after the ejection of an inner orbital electron and following transition of atomic orbital electrons from states of high to low energy. When a monochromatic beam of X-ray photons falls onto a specimen some basic phenomena may result in some effects such as absorption, scatter and fluorescence. These three phenomena forms are the basis of three important X-ray methods: the absorption technique is the basis of radiographic analysis, the scattering effect is the basis of X-ray diffraction, and the fluorescence effect is the basis of XRF spectrometry. When high energy photons (X-rays or gammarays) are absorbed by atoms, inner shell electrons are ejected from the atom, becoming photoelectrons [1]. This leaves the atom in an excited state, with a vacancy in the inner shell. Outer shell electrons then fall into the vacancy, emitting photons with energy equal to the energy difference between the two states. Since each element has a unique set of energy levels, each element emits a pattern of X-rays characteristic of the element, termed characteristic X-rays. Figure 1 shows the generation of the characteristic X-ray from atomic orbit. The intensity of the X-rays increases with the concentration of the corresponding element.

show abstract

“…The gap had a width of 0.01524 cm in between the fuel rod and the clad. The pin cell geometry in the small square lattice of the designed BWR system is shown in Figure 3 (Günay et al, 2015).…”

Section: Geometry Descriptionmentioning

confidence: 99%

Neutronic Calculations for Certain Americium Mixed Fuels and Clads in a Boiling Water Reactor

Düz

2021

Front. Energy Res.

View full text Add to dashboard Cite

In this study, a Boiling Water Reactor (BWR) design was made using the Monte Carlo (MCNPX) method. The reactor core in the designed BWR system was divided into an 8 × 8 square lattice with a constant pitch of 30.48 cm. In this study, americium (Am), which is found in the minor actinidine (MA) of spent nuclear fuel known as nuclear waste from existing reactors, was used as fuel with the addition of oxygen and fluorine. In this study, AmO2 and AmF3 fuels at the rate of 0.02–0.1% were used as Americium Mixed Fuels, and Zircaloy-2 (Zr-2), SiC, and VC were used as clad. Neutronic calculations for certain Americium Mixed Fuels and clads were compared in the designed BWR system. In the BWR system designed in the study; keff, neutron flux, fission energy, heating, and depleted Am were calculated. The three-dimensional (3-D) modeling of the designed BWR system was performed by using MCNPX-2.7.0 Monte Carlo method and the ENDF/B-VII.0 nuclear data library.

show abstract

The Effect on Neutronic Calculations of Certain Alternative Fuels in a Boiling Water Reactor by Using MCNPX Monte Carlo Method

Cited by 7 publications

References 7 publications

The effect of different fuels and clads on neutronic calculations in a boiling water reactor using the Monte Carlo method

The effect of different fuels and clads on neutronic calculations in a boiling water reactor using the Monte Carlo method

Quantitative Characteristic X-Ray Analysis for Different Compound Samples by Using Monte Carlo Method

Neutronic Calculations for Certain Americium Mixed Fuels and Clads in a Boiling Water Reactor

Contact Info

Product

Resources

About