نتایج جستجو برای: fission reactor kinetics

تعداد نتایج: 138881  

2015
Mehdi Abedi-Varaki Alireza Ganjovi Fahimeh Shojaei Zahra Hassani

In this work, a zero-dimensional kinetics model is used to study the temporal behavior of different species such as charged particles, radicals and excited states inside a Dielectric Barrier Discharge plasma reactor. It is shown that, the reactor significantly reduces the concentration of nitrogen monoxide as an environmental pollutant. After a drastic increase, a decrease in the concentration ...

Journal: :Physical review 2022

Model-independent reactor isotopic cross sections per fission are determined by global fits of the antineutrino data from High-Enriched Uranium (HEU) rates, Low-Enriched (LEU) and fuel evolution data. Taking account implicit quasi-linear relationship between fractions $^{239}\rm{Pu}$ $^{241}\rm{Pu}$ in LEU data, Inverse-Beta-Decay (IBD) yields their correlations fissionable isotopes $^{235}\rm{...

2012
Zhen Chen Haitao Zhang Weiyong Ying Dingye Fang

Based on a global kinetics of direct dimethyl ether (DME) synthesis process from syngas, a steady-state one-dimensional mathematical model for the bubble column slurry reactor (BCSR) has been established. It was built on the assumption of plug flow of gas phase, sedimentation-dispersion model of catalyst grains and isothermal chamber regardless of reaction heats and rates for the design of an i...

Journal: :Energies 2021

Nuclear graphite can be used in fission and fusion systems due to its excellent nuclear performance mechanical properties where the ability of oxidation resistance is usually concerned. Although new ET-10 was revealed by previous experiments regarding accident conditions a reactor, further studies are needed oxidize under recommended ASTM D7542 standard. A test facility designed developed cylin...

Journal: :Epj Web of Conferences 2021

The nuclear reactors themselves are complex systems whose responses driven by interactions between different physics phenomena within the reactor core. Traditionally, have been analyzed separately and its interaction considered via boundary conditions or closure models. However, in parallel with development of computational technology, multi-physics coupled simulations being used to obtain accu...

2015
Hany S. Abdel-Khalik Ayman I. Hawari Congjian Wang

This summary deals with a fundamental question in any reactor model validation practice: given a body of available experiments, and an envisaged domain of reactor operating conditions (referred to as reactor application), can one develop a quantitative measure that measures the portion of the prior uncertainties of the reactor application that is covered by the available experiments? Coverage h...

Journal: :international journal of environmental research 0
r.h.r. costa department of sanitary and environmental engineering, federal university of santa catarina, sc, brazil d.b. wolff department of sanitary and environmental engineering, federal university of santa maria, rs, brazil v.s. souto department of sanitary and environmental engineering, federal university of santa catarina, sc, brazil & campus universitário, florianópolis, sc brazil

a biofilm sequencing batch reactor with a volume of 1.42 m3, nylon nets providing a 4,140 m2/m3 support area for biofilms and an automated operation with 8 hour cycles was studied. the duration of the experiment was 135 days. removal efficiencies e≥ 80% were obtained for carbonaceous matter, producing an effluent with 31±26.8 mg/l of filtered cod, 7±3.6 mg/l of bod5 and 12±3.2 mg/l of toc. the ...

Benzyl chloride is economically one of the most important starting materials for a large number of industrial syntheses. Far too much money is now spent to buy and import this valuable product. The production of benzyl chloride has been recognized as one of our national projects and budgeted by the National Iranian Petrochemical Organization in order to economize on the country’s foreign exchan...

1986
D. B. McCulloch

The only significant development of the AUS system has been an extension.of the available cross-sections. That portion of the ENDF/B V data files which is unrestricted has been acquired from the IAEA Nuclear Data Section and the data processed for the AUS.ENDF2006 group library as required. In particular, a large set of fission product data has been processtid, sufficient for calculations of bo...

Journal: :Physical Review C 2021

Ternary fission of actinides probes the state nucleus at scission. Light clusters are produced in space and time very close to scission point. Within nonequilibrium statistical operator method, a generalized Gibbs distribution is constructed from information given by observed yields isotopes. Using this relevant operator, calculated taking excited states continuum correlations into account, acc...

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