Search Results - "Tikhomirov, G.V."

Study the neutronic feasibility of using Zr as an energy regulator instead of traditional methods by Elazaka, A.I., Tikhomirov, G.V., Abdelghafar Galahom, Ahmed

“…Summary The control of the reactor energy increases the reactor fuel cycle time. In this work, a new method has been investigated to control the reactor energy…”
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Whole core analysis of the single-fluid double-zone heavy water-moderated molten salt reactor (SD-HWMSR) by Ashraf, O., Tikhomirov, G.V.

“…Thermal-spectrum molten salt reactor (MSR) concepts usually adopt graphite as a neutron moderator. Although graphite as a moderator has many advantages, it…”
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Thermal-and fast-spectrum molten salt reactors for minor actinides transmutation by Ashraf, O., Tikhomirov, G.V.

“…•The transmutation performance of MAs in the critical SD-TMSR and SMSFR was investigated.•The transmutation ratio of long-lived MAs was calculated using the…”
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Strategies for thorium fuel cycle transition in the SD-TMSR by Ashraf, O., Rykhlevskii, Andrei, Tikhomirov, G.V., Huff, Kathryn D.

“…•Five initial fissile loadings were studied for transitioning to the thorium fuel cycle•The MSR burnup routine was used to simulate the online reprocessing and…”
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Whole core analysis of the single-fluid double-zone thorium molten salt reactor (SD-TMSR) by Ashraf, O., Rykhlevskii, Andrei, Tikhomirov, G.V., Huff, Kathryn D.

“…•Sixty years of depletion and fuel processing in a SD-TMSR is simulated using SERPENT-2 to find the equilibrium fuel composition.•The feed rates of 232Th and…”
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A methodology for evaluating the transmutation efficiency of long-lived minor actinides by Ashraf, O., Tikhomirov, G.V.

“…•A new criterion for transmutation efficiency of MAs was introduced.•A new approach for loading MAs into SD-TMSR and SMSFR was introduced.•The transmutation…”
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Transmutation of americium and neptunium in the single-fluid double-zone thorium-based molten salt reactor by Ashraf, O., Tikhomirov, G.V.

“…•A new approach compared to solid-fuel reactors for MAs loading was introduced.•The transmutation performance of 241Am and 237Np in the critical SD-TMSR was…”
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Preliminary design of control rods in the single-fluid double-zone thorium molten salt reactor (SD-TMSR) by Ashraf, O., Rykhlevskii, Andrei, Tikhomirov, G.V., Huff, Kathryn D.

“…•A reliable safety system based on control rods has been introduced in the SD-TMSR.•Three different initial fissile loadings are considered.•Six different…”
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Searching for managing the reactivity and increasing the fuel cycle life in the PWR by an untraditional method by Galahom, A.Abdelghafar, Elazaka, A.I., Tikhomirov, G.V.

“…•Managing the excess reactivity and increase the fuel cycle in the PWR.•The BS assembly reduces the excess reactivity at the beginning of cycle.•Reducing the…”
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Independent testing of new generation codes of the «Proryv» project by Tikhomirov, G.V., Ternovykh, M.Yu, Khomyakov, Yu.S., Suslov, I.R.

“…•University NRNU MEPhI works on testing of the Proryv codes.•The objectives of independent testing include assessment of the code quality.•Complexes were…”
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Virtual analog of uranium-water subcritical assembly by Kiryukhin, P.K., Romanenko, V.I., Khomyakov, D.A., Shcherbakov, A.A., Pugachev, P.A., Yushin, I.M., Ashraf, O., Tikhomirov, G.V.

“…•The optimal uranium–water ratio for the UWSA in VR was determined.•Unreal Engine 4 was used to create the virtual analog.•The neutronics model of the UWSA was…”
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Reduction of the Systematic Error of the Monte Carlo Method in MCU-Aided Calculations of Nuclear Reactors by Bahdanovich, R. B., Gerasimov, A. S., Tikhomirov, G. V.

“…A systematic error is present in reactor calculations performed with the aid of the MCU-code. This paper introduces an algorithm that in calculations by the…”
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Experimental parameters for a Cerium 144 based intense electron antineutrino generator experiment at very short baselines by Gaffiot, J., Lasserre, T., Mention, G., Vivier, M., Cribier, M., Durero, M., Fischer, V., Letourneau, A., Dumonteil, E., Saldikov, I. S., Tikhomirov, G. V.

“…The standard three-neutrino oscillation paradigm, associated with small squared mass splittings Delta m super(2) << 0.1 eV super(2), has been successfully…”
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The problem of estimating the accuracy of calculation of local tallies by means of the Monte Carlo method by Skorokhodov, D. N., Tikhomirov, G. V.

“…The problem of the bias of the estimate of local tallies is discussed. The problem is demonstrated by means of a simple numerical experiment. The method of a…”
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Production of high specific activity [sup.144]Ce for artificial sources of antineutrinos by Gerasimov, A.S, Kornoukhov, V.N, Sal'dikov, I.S, Tikhomirov, G.V

“…The possibility of obtaining from the fission products of VVER-440 fuel high-activity [sup.144]Ce for artificial sources of antineutrinos is examined. It is…”
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Comparative validation of Monte Carlo codes for the conversion of a research reactor by Alferov, V.P., Radaev, A.I., Shchurovskaya, M.V., Tikhomirov, G.V., Hanan, N.A., van Heerden, F.A.

“…•We calculate test problems for a research reactor with tube-type fuel.•The static cases and the depletion problem are examined.•We compare Monte Carlo codes:…”
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Comparative Analysis of Algorithms for Representing a Scattering Indicatrix in the Probabilistic Method of Discrete Ordinates by Sirotkin, A. M., Ternovykh, M. Yu, Tikhomirov, G. V., Khromova, M. F.

“…The form of the collision integral in the equations of the probabilistic method of discrete ordinates is examined. Two algorithms for calculating double…”
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Heat-Transfer Modeling in Supercritical Pressure Water Using Other Media by Deev, V. I., Kutsenko, K. V., Lavrukhin, A. A., Ternovykh, M. Yu, Tikhomirov, G. V.

“…The possibilities of modeling heat-transfer processes in water with supercritical parameters characteristic for the VVER-SKD reactor now under development are…”
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VVER nuclear fuel burnup with different absorbers by Bergelson, B. R., Belonog, V. V., Gerasimov, A. S., Tikhomirov, G. V.

“…A computational study is performed of the fuel burnup in VVER-1000 using different absorbers in open and closed fuel cycles. It is shown that mixtures of…”
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Modeling of the fuel burnup of research reactors on switching to low enrichment by Baranov, V. G., Tikhomirov, G. V., Kharitonov, P. E., Khlunov, A. V.

“…The modeling of the neutronics of fuel assemblies on switching research reactors to low-enrichment fuel is examined. The specifications and computational…”
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