... parameters in the rectangular channel. ensemble learning methods two-phase flow rectangular channel stacking machine learning Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92231 EXPLORATION AND APPLICATION...

... the heat transfer performance. However, the two-phase flow characteristics downstream of spacer grids in the tight lattice are still not clarified. In this paper, a gas-liquid two-phase flow experiment study measuring the void fraction distribution downstream of spacer grids without mixing vanes (SGWMVs...

... Abstract In order to clearly understand the phase distributions, the gas-liquid two-phase flow in a 5 × 5 bare rod bundle channel was numerically studied based on the Euler-Euler two fluid model with the CFX commercial software. In the two-phase bubbly flow simulation, the interfacial forces...

... with the complex two-phase flow, could be acquired through the high-fidelity neutronics and thermal-hydraulics coupling simulation using JAMPAN. multi-physics simulation platform neutronics and thermal-hydraulics coupling simulation fuel bundle two-phase flow Proceedings of the 2022 29th International...

...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92544 NUMERICAL SIMULATION OF THE EFFECT OF TOTAL BLOCKAGE OF A SUB-CHANNEL ON TWO-PHASE FLOW THROUGH A 5 X 5 ROD BUNDLE Ayodeji A. Ala1,2, Sichao Tan1 1Fundamental...

..., the discharge mass flow rate prediction is crucial for engineering design and emergency response in case of nuclear accidents. Unfortunately, the critical flow is difficult to predict especially when two-phase flow exists. Developing a more accurate model for critical flow is an essential requirement...

... effect on the improvement of the heat removal power of the system. open natural circulation two-phase flow flow characteristics Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92041 RESERACH ON THE INFLUENCE...

... characteristics of two-phase flow in vertical or horizontal pipes, there are few researches on the countercurrent flow in a complex. In this paper, the countercurrent flow of two-phase flow in the hot leg under the condition of Loss of Coolant Accident (LOCA) is modeled and calculated. The experimental loop...

... Abstract As a common heat transfer structure, the vertical round pipe is widely used in nuclear energy systems. The phase distribution characteristics of two-phase flow in a vertical round pipe is an important issue. For two-phase flow, combined with the local typical flow phenomenon...

... Abstract Gas-liquid two-phase flow has high potential in heat transfer and mixing capabilities, and therefore it is utilized in various technologies such as nuclear reactor and chemical plants. There are several flow regimes since the gas-liquid interface transforms constantly. For the sake...

... Abstract Two-phase pressure drop in the debris has been studied by many researchers in relation to the debris cooling characteristics during a severe accident in a nuclear reactor. However, its flow regime transition of the two-phase flow in the debris has not been well understood, which...

... Abstract As a common heat exchange structure, vertical pipe is widely used in neaclear reactors and other systems. Flow pattern and flow regime map are the basis of thermal-hydraulic calculation. In this paper, the experiment of air-water two-phase flow pattern was carried out based...

... was fully studied and extensive correlations have been validated by a large amount of experimental data, the friction factor of two-phase flow still lacks feasible prediction due to its much more complexity. The existed correlations of two-phase flow in helically coiled tubes are mostly based on specified...

... is eagerly awaited. moisture separation mechanism drying process separation efficiency wave-plate mist eliminators inertial separators chevrons separator vanes separator panels steam drier wet steam two-phase flow nuclear power plants re-entrainment experimental validation MSR numerical...

... Abstract Two-phase flows are observed in various industrial plants and piping systems. Understanding two-phase flow behaviors such as flow patterns and unsteady void fraction in horizontal and vertical pipes are crucial in improving plant safety. Notably, the flow patterns observed in a large...

... Abstract The radioactive aerosol removal equipment is used as one of the safety systems of nuclear reactors. In this equipment, microparticles of aerosol are removed through gas-liquid interfaces of two-phase flow. The mechanism related to the removal of microparticles through the gas-liquid...

... of the churn flow led to the diameter of the gas core change drastically and reduce separation efficiency significantly. two-phase flow gas-liquid separation flow patterns centrifugal technology EXPERIMENTAL STUDY ON TWO DIFFERENT GAS-LIQUID SEPARATORS UNDER DIFFERENT FLOW PATTERNS Xiaobo Zeng1...

..., the FP removal efficiency by pool scrubbing is largely affected by the flow regime of gas-liquid two-phase flow. In order to gain a deeper understanding of the influence of gas properties on flow regimes, experiments were performed by injecting helium (He) and nitrogen (N 2 ) gas mixtures of several...

... technology, which clearly differentiates the OEM, for who this research was carried out, from its competitors, will allow considerable size and cost reduction as well as opportunities to retrofit existing MSRs. moisture separator (MS) separator elements throttling calorimeter steam two-phase flow...

... with a mean deviation of 18.7% Key word: Two-phase Viscosity, Narrow Rectangular channel, Pressure Drop, Two-phase Flow NOMENCLATURE a aspect ratio Bo Bond number=gD/2)2/ B1, B2, y correlations in Table (1) D hydraulic diameter, m f frictional factor g acceleration of gravity, m/s2 G mass flux, kg/m2·s H...