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Sunday, July 26, 2020 | History

2 edition of Mathematical Modelling of Water Radiolysis found in the catalog.

Mathematical Modelling of Water Radiolysis

Atomic Energy of Canada Limited.

Mathematical Modelling of Water Radiolysis

A Discussion of Various Methods.

by Atomic Energy of Canada Limited.

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Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesAtomic Energy of Canada Limited. AECL -- 5958
ContributionsRosinger, E.L.J., Dixon, R.S.
ID Numbers
Open LibraryOL21970567M

Modeling of the chemical stage in water radiolysis using Petri nets. J Barilla 1, P Simr 1, M Lokajíček 2 and H Pisaková 2. Published 11 March • Published under licence by IOP Publishing Ltd. cusses the mathematical modelling of water radiolysis and some of the problems involved. Two main methods are considered viz. steady-state kinetics and time-dependent kinetics. Several different computer programs for solution by each method have been tested and, where pos-sible, comparisons made with experimental results. Preliminary con-.

Previous Work in Modeling PCC Radiolysis in Water-Cooled Nuclear Reactors. •Early work (prior to ) by Burns, Ishigure, Ibe, Ruiz, Christensen, Lukashenko, Pastina, Baldacchino, Bartels, and Elliot, to name a few of the more prominent researchers, modelled the radiolysis of coolant water in the primary coolant circuits (PCC) of water-cooled nuclear fission reactors, with the objective of calculating the . Water radiolysis also in the presence of additives Authors: M. Marena, R. Rizzi, C. Ronchetti Source: WATER CHEMISTRY OF NUCLEAR REACTOR SYSTEMS 4, 1 Jan (–).

The book provides a bridge between empirical modeling and first-principle methods: it explains how the principles of modeling can be used to explain the validity of empirical assumptions. The basic features of micro-scale and macro-scale modeling are discussed – which is Reviews: 2. Among the radicals (hydroxyl radical (•OH), hydrogen atom (H•), and solvated electron (esol−)) that are generated via water radiolysis, •OH has been shown to be the main transient species responsible for radiation damage to DNA via the indirect effect. Reactions of these radicals with DNA-model systems (bases, nucleosides, nucleotides, polynucleotides of defined sequences, single.


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Mathematical Modelling of Water Radiolysis by Atomic Energy of Canada Limited. Download PDF EPUB FB2

The radiolysis of water due to ionizing radiation results in the production of electrons, H atoms, OH radicals, H3O+ ions and molecules (dihydrogen H2 and hydrogen peroxide H2O2). A brief history of the development of the understanding of water radiolysis is presented, with a focus on the H2 production.

This H2 production is strongly modified at oxide by: We present a mathematical model that quantifies the rate of water radiolysis near radionuclide-containing solids. Our model incorporates the radioactivity of the solid along with the energies and.

A mathematical model is developed for the radiolysis of water vapor and water vapor to which molecular hydrogen and oxygen are added. The model is. We present a mathematical model that quantifies the rate of water radiolysis near radionuclide-containing solids. Our model incorporates the radioactivity of the solid along with the energies and attenuation properties for alpha (α), beta (β), and gamma (γ) radiation to calculate volume normalized dose rate by:   Mathematical model of the radiolysis of water in the active zone of an RBMK reactor.

Lukashenko, A. Milaev & S. Tevlin Atomic Energy vol Cited by: 2. We present a mathematical model that quantifies the rate of water radiolysis near radionuclide-containing solids.

Our model incorporates the radioactivity of the solid along with the energies and attenuation properties for alpha (α), beta (β), and gamma (γ) radiation to calculate volume normalized dose rate profiles.

Abstract Kinetic model for the radiolysis of pure water describing the formation of H2, H2O2and O2and the radiation chemical transformations of aqueous solutions containing these compounds over a broad range of concentrations, pH, absorbed.

We present a new model to quantify the extent to which radiolysis occurs in water at phase boundaries where radioactive elements are present in a solid phase. Multiple previous studies have examined product formation by water radiolysis at the interface between solids and water (e.g., Buck et al., ; Jonsson et al., ; Nielsen and Jonsson, ).

In general, these studies have examined radiolysis. Simulation of the inhibition of water α-radiolysis via H2 addition PhantiraLertnaisat a,YosukeKatsumura. University ofCalifornia, Davis This book is the first to deal comprehensively with the subject of mathematical modeling of water quality in streams, lakes, and reservoirs.

model developed by King et al. () and Sunder (); hence, this model could be improved with a more comprehensive radiolysis component. Most radiolysis modeling has concentrated on gamma irradiation rather than alpha irradiation, and there are few, if any, examples in the literature of radiolytic species predictions under alpha radiolysis.

A mathematical model of radiolysis of water sorbed on PuO2 was developed. The model is basedon the postulate that the kinetic characteristics of formation of the initial products in α-radiolysis of sorbedwater (H2, O2, H2O, e- e q, OH) depend on its content.

A mathematical model of radiolysis of water sorbed on PuO2 was developed. The model is basedon the postulate that the kinetic characteristics of formation of the initial products in -radiolysis of. This book is born out of my fascination with applied mathematics as a place where the physical world meets the mathematical structures and techniques that are the cornerstones of most applied mathematics courses.

I am interested largely in human-sized theatres of interaction, leaving cosmology and particle physics to others. Mathematical Modeling in Water Resources book. Read reviews from world’s largest community for readers. The presented mathematical model enables us to simulate the chemical stage of the water radiolysis and to obtain the time dependencies of the concentrations of radicals and other species in corresponding clusters.

This book shows how mathematics is applied in agriculture, in particular to modeling the growth and yield of a generic crop. Topics covered are agriculture meteorology, solar radiation interception and absorption, evapotranspiration, energy and soil water balance, soil water flow, photosynthesis, respiration, and crop growth development.

Water radiolysis Mathematical model Dose rate Hydrogen Hydrogen peroxide Spent nuclear fuel abstract We present a mathematical model that quantifies the rate of water radiolysis near radionuclide-con-taining solids. Our model incorporates the radioactivity of.

Abstract A mathematical model is developed for the radiolysis of water vapor and water vapor to which molecular hydrogen and oxygen are added. The model is verified using existing experimental data on the radiolysis of water vapor in a wide range of temperatures and dose rates of ionizing radiation.

View Radiolysis Of Water PPTs online, safely and virus-free. Many are downloadable. Learn new and interesting things. Get ideas for your own presentations. Share yours for free!. The authors use analytical expressions for the yields of the molecular products of the radiolysis of water in the region of low concentrations of substances dissolved in it.

A table compares the effects of various inhibitors of the release of molecular hydrogen with their reactivity relative to the H atom, the hydrated and presolvated electrons.In testing mathematical models against real data, we often have the situation of having to check whether data fits an equation.

If the relationship is linear, i.e. of the form y = mx + c, then it is comparatively easy to see whether the data fits the straight line and to ascertain the gradient m and intercept r, if the relationship is non-linear this is not so easy.The story occurred on the year The engineer had only 24 hours to determine whether the valve would hold or not.

In order to solve the problem, he built a mathematical model, which modeled the motion of the water. Having developed an equation to model the motion of water, the next challenge was to solve the equation.