Zobrazeno 1 - 10
of 469
pro vyhledávání: '"J. Karimi-Sabet"'
Publikováno v:
مجله علوم و فنون هستهای, Vol 44, Iss 3, Pp 56-68 (2023)
In order to modeling the gas behavior inside the rotor of a gas centrifuge, a powerful tool is needed to overcome the computational constraints of gas inside the centrifuge along with the ability to apply all drives at the all flow regimes. Due to th
Externí odkaz:
https://doaj.org/article/158ab61946a9476c9829f59e3f561662
Publikováno v:
مجله علوم و فنون هستهای, Vol 44, Iss 1, Pp 136-143 (2023)
In this work, laboratory-scale laser isotope separation of 13C by isotope-selective multi-photon dissociation of CF2HCl gas molecules has been done. To do this, the pulses of a tunable TEA CO2 laser, which have been shortened using a plasma shutter,
Externí odkaz:
https://doaj.org/article/fafbcf734cfc41ca8766e533bedfe7c5
Publikováno v:
مجله علوم و فنون هستهای, Vol 43, Iss 4, Pp 28-40 (2022)
The behavior of fission gases such as xenon and krypton have a significant effect on the performance of nuclear fuels, their active life, and the length of the reactor operating cycle. Two important phenomena, including the release of fission gases f
Externí odkaz:
https://doaj.org/article/1e53f16066604e7cacbc4bfaa1ea81d2
Publikováno v:
مجله علوم و فنون هستهای, Vol 43, Iss 3, Pp 72-83 (2022)
In the design of tapered cascades, due to hydrodynamic problems, not every cascade can be operated. This paper describes the method of designing and optimizing a tapered cascade for the separation of stable multi-component mixtures by considering the
Externí odkaz:
https://doaj.org/article/3885084435154e4bbb69d321eb6d0c3c
Publikováno v:
Chemical and Biochemical Engineering Quarterly, Vol 35, Iss 4, Pp 355-367 (2022)
In this research, the membrane separation process was used to separate helium from methane gas. In order to do this, computational fluid dynamics (CFD) was used, and the effect of process parameters on the performance of the membrane separation proce
Externí odkaz:
https://doaj.org/article/8257afd232e848b390086f8339728259
Publikováno v:
مجله علوم و فنون هستهای, Vol 42, Iss 4, Pp 54-63 (2021)
To model a gas behavior within a centrifuge machine, a powerful tool is required similarly. With high-speed cover, all the computational limitations for applying the influential derives such as feed, scoop, baffle effects, etc., formed flow regimes.
Externí odkaz:
https://doaj.org/article/2bd694d982174ba58f499ea2dd2952d8
Publikováno v:
مجله علوم و فنون هستهای, Vol 42, Iss 3, Pp 8-17 (2021)
Among the four stable isotopes of sulfur, the heaviest isotope, 36S, has found many applications in radioisotope production and neutron activation. In the present work, due to the very low natural abundance of 36S, the single withdrawal cascades are
Externí odkaz:
https://doaj.org/article/8704763192304ce7aa98c4ba1a79a3f7
Publikováno v:
مجله علوم و فنون هستهای, Vol 42, Iss 2, Pp 9-18 (2021)
In the present work, the performance of a square cascade in the separation phase of tellurium stable isotopes is studied. In this cascade, the selection of an appropriate feed stage, the first stage cut, and the cut of the cascade are the effective p
Externí odkaz:
https://doaj.org/article/41d10d35a1494304b31d516e9bb80d20
Publikováno v:
مجله علوم و فنون هستهای, Vol 41, Iss 4, Pp 45-54 (2020)
One of the significant phenomena in the operational conditions of the enrichment cascades is the sudden crash of a number of separate machines along the cascade. In order to investigate the effect of gas centrifuge crash on cascade performance, separ
Externí odkaz:
https://doaj.org/article/6dd5679789c440eca0690eb51bd6cf4e
Publikováno v:
مجله علوم و فنون هستهای, Vol 40, Iss 3, Pp 73-87 (2019)
In this paper, using a new combinatory meshing technique in the axisymmetric coordinate, a MCC-DSMC solver is introduced. Using this solver, the flow and the concentration variation inside a centrifuge machine in a rigid body rotation mode with the D
Externí odkaz:
https://doaj.org/article/006d418371ae4bf5b1aa2d950d6acd4d