Персона: Куценко, Кирилл Владленович
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Руководитель научной группы "Лаборатория теплогидравлики и физики кипения"
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Куценко
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Кирилл Владленович
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- ПубликацияОткрытый доступFeatures of training specialists for responsibility centers of the project direction "proryv"(2020) Kutsenko, K. V.; Lavrukhin, A. A.; Pershukov, V. A.; Ternovykh, M. Yu.; Tikhomirov, G. V.; Куценко, Кирилл Владленович; Лаврухин, Алексей Анатольевич; Першуков, Вячеслав Александрович; Терновых, Михаил Юрьевич; Тихомиров, Георгий Валентинович© Published under licence by IOP Publishing Ltd.National Research Nuclear University "MEPhI"(NRNU MEPhI) is the leading university of the consortium of reference universities of the State Atomic Energy Corporation Rosatom (ROSATOM), a regular supplier of young specialists of the highest level. Since 2014 NRNU MEPhI has been training graduates for responsibility centers of the project direction "Proryv". University responds quickly to staffing challenges, and provides the project "Proryv"the personnel with relevant unique competencies. These competencies include the ability to apply the knowledge gained to develop a new technological platform for nuclear power with the involvement of uranium-238 and spent nuclear fuel reprocessing products in the fuel cycle. Obtaining such unique knowledge is impossible without the use of external resources, namely, the involvement of leading scientists and practitioners of ROSATOM for conducting classes with students, organizing practices in scientific centers and at nuclear fuel cycle enterprises. The article discusses the features of the organization of the educational process in this area.
- ПубликацияОткрытый доступPressure drop in valve for different open flow areas(2020) Laouar, S.; Sakib, M. N.; Muqit, Al, S.; Navasardyan, M. V.; Kutsenko, K. V.; Куценко, Кирилл Владленович© Published under licence by IOP Publishing Ltd.In any piping system different types of regulating components (valves) are used. To determine the pressure drop of the liquid in these components, it is necessary to know the exact values of the local loss coefficients, which depend on their design and manufacturer. The calculations of local loss coefficients of the valves are usually carried out according to engineering methods using design handbooks. However, the large design diversity of the valves does not allow an accurate assessment of the local loss coefficient for a particular product (using handbooks). There are two ways to solve this problem. The first way is experimental determination; the second is calculation using CFD modelling. This article presents the results of CFD simulation of the pressure drop of liquid through valves and a comparison with experimental data obtained from the thermal hydraulic test bench.
- ПубликацияТолько метаданныеTransient boiling crisis in liquid nitrogen. influence of heater size and heating rate(2020) Delov, M. I.; Kuzmenkov, D. M.; Lavrukhin, A. A.; Kutsenko, K. V.; Делов, Максим Игоревич; Кузьменков, Дмитрий Михайлович; Лаврухин, Алексей Анатольевич; Куценко, Кирилл Владленович© 2020It is known that the nucleate boiling of different refrigerants (liquid nitrogen, freons etc.) may drop to the film boiling regime at a heat flux, which is significantly lower than the value from the standard boiling curve. This happens during unsteady heating at a minimum critical heat flux, whose value depends on different parameters of the process: heater geometry, pressure, subcooling relative to saturation, fluid type, initial conditions etc. In this article, we present new experimental results on the influence of the size of the heater and the heating rate on the minimum critical heat flux. The experiments are accompanied by numerical simulations and a theoretical analysis, where we demonstrate how the minimum critical heat flux is computed for a given case. In addition, we demonstrate that the minimum critical heat flux does not depend on the size of the heater at atmospheric pressure when the size of the heater is larger than 1 mm. This parameter is also independent of the temporal history of heat supply. The derived theoretical approach finds applications in the design of the systems based on high-temperature superconductors.
- ПубликацияТолько метаданныеSolar steam generation enabled by iron oxide nanoparticles: Prototype experiments and theoretical model(2020) Thon, H.; Kosinski, P.; Struchalin, P. G.; Kuzmenkov, D. M.; Kutsenko, K. V.; Balakin, B. V.; Стручалин, Павел Геннадьевич; Кузьменков, Дмитрий Михайлович; Куценко, Кирилл Владленович© 2020Photo-thermal evaporation of nanofluids has potential applications in solar desalination, micro-CHP (combined heat and power) and domestic off-grid disinfection. In this research, we reproduced the process experimentally using 110-nm iron oxide particles dispersed in water. At an initial lab-scale stage, under the artificial radiation of 6.9 suns, we observed that the boiling nanofluid destabilizes to a suspension of 6µm agglomerates of nanoparticles and that up to 30% of the particles escape the system with the steam. At the prototype stage, we boiled the fluid in a solar concentrator producing 35 g/min steam with an efficiency of around 60%, which is sufficient to drive a small turbine. The optimum concentration of the nanoparticles was 3 wt%. To supplement the experiments, we developed a simplified model for engineering calculations of the solar steam generation rate. The model corresponds well to the experiments deviating by only 8%.
- ПубликацияТолько метаданныеDiagnostics of transient heat transfer regimes based on statistical and frequency analysis of temperature fluctuations(2020) Delov, M. I.; Litvintsova, Y. E.; Kuzmenkov, D. M.; Laouar, S.; Maslov, Y. A.; Lavrukhin, A. A.; Balakin, B. V.; Kutsenko, K. V.; Делов, Максим Игоревич; Кузьменков, Дмитрий Михайлович; Маслов, Юрий Александрович; Лаврухин, Алексей Анатольевич; Куценко, Кирилл Владленович© 2019, © 2019 Taylor & Francis.The paper presents the results of experimental and theoretical studies of temperature fluctuations at the surface of heaters in different heat transfer regimes. Developing several methods of treatment for the temperature fluctuations, we succeed in the diagnosing the onset of transient boiling regimes. The proposed methods are based on the statistical analysis of histograms and amplitude-frequency analysis of the spectra of temperature fluctuations. In addition, the study demonstrates and compares how these techniques may be utilized to predict the transitions from the convective heat transfer to the nucleate boiling and the film boiling regimes.
- ПубликацияТолько метаданныеDiagnostics of coolant boiling onset based on the analysis of fluctuations of thermohydraulic parameters(2020) Litvintsova, Y. E.; Laouar, S.; Delov, M. I.; Kuzmenkov, D. M.; Lavrukhin, A. A.; Kutsenko, K. V.; Делов, Максим Игоревич; Кузьменков, Дмитрий Михайлович; Лаврухин, Алексей Анатольевич; Куценко, Кирилл Владленович© Published under licence by IOP Publishing Ltd.When operating heat-exchange facilities, it is of interest to develop methods of diagnostic and prediction for coolant boiling onset. It is known that the surface temperature of a heating element always has stochastic oscillations around an average value, the analysis of such fluctuations will make it possible to predict the change in the heat transfer regimes. This paper presents the results of an experimental study of temperature fluctuations for an inertial heater and using of method of diagnostic are based on statistical and frequency analysis of temperature fluctuations. It is shown that there is a correlation between the frequency characteristics of heater temperature fluctuations and oscillations in the thermohydraulic parameters of the coolant (temperature, flow, pressure). The obtained results will find application in the development of an automated system for diagnostics the coolant boiling onset in power facilities.
- ПубликацияТолько метаданныеA thermohydraulic flow loop for developing novel solutions in the field of using digital twins for nuclear power facilities(2020) Laouar, S.; Delov, M. I.; Litvintsova, Yu. E.; Kuzmenkov, D. M.; Muradyan, K. Yu.; Navasardyan, M. V.; Kutsenko, K. V.; Делов, Максим Игоревич; Кузьменков, Дмитрий Михайлович; Мурадян, Карен Юрикович; Куценко, Кирилл Владленович© 2020 Obninsk Institute for Nuclear Power Engineering, National Research Nuclear University 'MEPhI'. All rights reserved.The experience is presented in building a thermohydraulic flow loop for developing technical and software solutions in using digital twins of nuclear equipment. The thermohydraulic flow loop was developed and manufactured at National Research Nuclear University MEPhI and represents a two-loop facility that allows investigating the processes of heat and mass exchange at forced and natural water circulation modes. The experimental facility allows one to obtain new data on heat transfer and hydrodynamics of two-phase flows round the fuel element bundles required for verification of computer codes. The obtained preliminary experimental results agree well with the calculations based on various codes. As part of building a digital twin for the thermohydraulic flow loop, a system is developed to diagnose, control and monitor heat-exchange transients based on physically justified real-time techniques. Neural network technologies will make it possible to predict changes in the flow loop's thermohydraulic parameters in response to external impacts. Further, a virtual prototype of the experimental facility is expected to be used in the training process and for distance learning.
- ПубликацияТолько метаданныеSolar steam generation in fine dispersions of graphite particles(2020) Alyaev, S.; He, Y.; Kuzmenkov, D. M.; Delov, M. I.; Zeynalyan, K.; Struchalin, P. G.; Kutsenko, K. V.; B. V. Balakin.; Кузьменков, Дмитрий Михайлович; Делов, Максим Игоревич; Стручалин, Павел Геннадьевич; Куценко, Кирилл Владленович© 2020 Elsevier LtdThe direct photothermal boiling in suspensions of nano- and microscopic particles finds multiple applications in concentrated solar power: turbine-based combined heat and power (CHP) generation, solar distillation, energy storage, and chemical synthesis. However, the most promising application is solar desalination. There have been multiple studies aimed at the evaporation of suspensions using simulated solar light, but there is neither a theory describing the process nor a well-documented prototype study. This article aims at the development of an experiment and a theory, that describe the photothermal boiling in aqueous suspensions of graphite. We develop a laboratory scale steam-fluid loop with continuous condensation that recycles the water back to the process. We clarify how the concentration and incident radiant heat influence the steam generation. The optimum concentration of graphite particles - 1 wt% - was found experimentally at 17.4 suns. We studied the granulometry of the suspension and dynamics of steam bubbles. We document how the particle size distribution and bubbles evolve in boiling suspension. The theoretical description of the process is based on a heat balance analysis for an individual steam bubble. The developed model is validated against three independent experimental datasets, exhibiting accuracy with the lowest average discrepancy of 10%.
- ПубликацияТолько метаданныеNumerical studies of boiling in nanofluids exposed to thermal radiation(2019) Karelova, D. G.; Kuzmenkov, D. M.; Kutsenko, K. V.; Delov, M. I.; Balakin, B. V.; Кузьменков, Дмитрий Михайлович; Куценко, Кирилл Владленович; Делов, Максим Игоревич© 2019 Author(s).Photothermal boiling in nanofluids is an energy-efficient process finding multiple promising applications in medicine, space technology, laser printing and nuclear engineering. The most important field is though solar energy where the nanoparticle-driven boiling of the base fluid drives a nano-turbine or a distillator. Hundreds of experimental and theoretical studies has been conducted in this direction over the past decade. There is however no reliable theory that describes kinetics of the process. The present contribution presents a numerical model of the process of photo-thermal evaporation in aqueous nanofluids. The model was used to predict the evaporation rate depending on concentration of the nanoparticles. The simulation results were compared with the experimental data over a range of concentrations (up to 10% wt.), demonstrating suitable agreement with the experiment.
- ПубликацияТолько метаданныеPerformance of a tubular direct absorption solar collector with a carbon-based nanofluid(2021) Nikolaev, O. V.; Vologzhannikova, A. A.; Shevelyova, M. P.; Gorbacheva, O. S.; Struchalin, P. G.; Yunin, V. S.; Kutsenko, K. V.; Balakin, B. V.; Стручалин, Павел Геннадьевич; Куценко, Кирилл Владленович© 2021 Elsevier LtdDirect absorption solar collectors (DASC) with nanofluid represent a new direction in solar thermal technology that is simpler yet more efficient than conventional equipment. In this work, we report details of performance for a custom tubular DASC with a carbon-based nanofluid. The collector was tested experimentally following a standard procedure and using a multiphase CFD-model of the device. The experiments were carried out in a range of flow rates 2. 10 l/min, nanoparticle concentrations 0.0015. 0.082%wt., temperature differences (up to 29.3 degrees), and radiant heat fluxes. We found that, at a particle concentration of 0.01%, the collector demonstrated the average thermal efficiency of 80%. For the comparable temperature differences, the efficiency of DASC was 5.8. 37.9% higher than a collector with similar geometry but a surface absorption of light energy. The CFD-model, validated against our experiments, depicts flow patterns in the DASC focusing on nanoparticles’ deposition. Less than 5% of particles deposit under local flow restrictions at flows above 6 l/min. The deposition patterns from the CFD-model correlate to the experimental observations.