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A novel structure of throttle trap valve for self-adjustment of discharge capacity in high pressure heat exchangers

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 135 ()

A novel self-adjusting throttle trap valve (TTV) for use in high pressure heat exchangers was developed based on multiphase flow theory. The discharge......

Study on melt jet breakup behavior with nonorthogonal central-moment MRT color-gradient lattice Boltzmann method

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 136 ()

In this paper, the melt jet breakup behavior are numerically studied in 3D with nonorthogonal central-moment MRT color-gradient lattice Boltzmann meth......

CFD study on crossflow and heat transfer characteristics of single phase flow in rod bundle with spacer grid under rolling conditions

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 137 ()

In order to study the thermal and hydraulic characteristics of nuclear reactors under ocean conditions and meet the urgent needs of the design of floa......

Comparative study of the supercritical carbon-dioxide recompression Brayton cycle with different control strategies

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 137 ()

In this paper, the model is developed using Modelica language to simulate the operation of recompression S-CO2 Brayton cycle. The transient simulation......

Research and optimization design of buffer protection in passive shutdown subassemblies

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 139 ()

Liquid suspension passive shutdown technology uses fluid flow to generate a lifting force to ensure that a control rod is suspended in its working pos......

Investigation on the effect of low aspect ratio on heat transfer characteristics for light metallic layer

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 136 ()

The nuclear safety and the integrity of the Reactor Pressure Vessel (RPV) could be ensured by the In-Vessel Retention (IVR) strategy during the severe......

Adaptive backstepping controller with extended state observer for load following of nuclear power plant

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 137 ()

Load following is one of the most important subjects for nuclear power plants. In this paper, an adaptive backstepping control strategy with extended ......

Single-phase density wave oscillation -A new mechanism of flow instability in inverted U-type steam generator

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 138 ()

Flow reversal under low mass flow conditions is harmful to the performance of inverted U-type steam generator (UTSG) and existing research attributes ......

Evaluations and classifications of the bundle effects on steam condensation based on broad pressure range experiments

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 135 ()

Steam condensation consisting of noncondensable gas has been broadly investigated on external surfaces of various single tube and plates. Previous num......

Development of optimization platform and its application in severe accident management

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 136 ()

The consequence of severe accident can be alleviated by proper severe accident management (SAM). Variety of schemes have been developed to seek optimi......

Development and application of hybrid teaching-learning genetic algorithm in fuel reloading optimization

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 139 ()

The problems of fuel reloading optimization is a complex multi-objective discrete optimization problem with multiple local optimums. In recent years, ......

Numerical study on oscillation characteristics of large chugging of direct condensation of steam in a Tee junction with flowing sub-cooled water

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 135 ()

Direct contact condensation (DCC) of steam has the advantage of high efficiency of heat and mass transfer, and thus it is widely used in many industry......

Marvin: A parallel three-dimensional transport code based on the discrete ordinates method for reactor shielding calculations

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 137 ()

Marvin is a parallel three-dimensional discrete ordinates (SN) code dedicated for reactor shielding calculations. It employs the multi-group and SN ap......

Comparison of the hydraulic characteristics of the 30%TRPO/kerosene-HNO3 and iPr-C[4]C-6/n-octanol-HNO3 systems in an annular centrifugal extractor

期刊: PROGRESS IN NUCLEAR ENERGY, 2021; 136 ()

The hydraulic characteristics of the 30% TRPO (trialkylphosphine oxide)/kerosene-1.0 M HNO3 and 0.025 M iPr-C [4]C-6 (25,27-bis(isopropoxy) calix PH-2......

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