Experimental study and numerical optimization on a vane-type separator for bubble separation in TMSR

Cai, Baowei; Wang, Jianjun; Sun, Licheng; Zhang, Nana; Yan, Changqi

doi:10.1016/j.pnucene.2014.02.007

Cited by 65 publications

(16 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent study has suggested that Reynolds stress model (RSM) of the turbulence is suitable for similar type of process because the RSM formulation coupled to a double‐layer approach for the near‐wall treatment was better suited . And the RSM model was capable of presenting the flow field in the separator with a good accuracy . The simulations of Reynolds stresses for the liquid phase were performed by RSM in our works since the swirling flow structure and in such turbulent flow viscosity is typically nonisotopic.…”

Section: Numerical Methodologymentioning

confidence: 99%

See 1 more Smart Citation

Numerical simulation of tritiated bubble trajectory in a gas-liquid separator

Qian

et al. 2017

Int J Energy Res

View full text Add to dashboard Cite

Summary The gas‐liquid separator is a critical component for the online tritium gas removal system in thorium molten salt reactor. In this paper, an isolated bubble trajectory in a single‐phase swirling flow field of the separator is investigated theoretically. The mathematical modeling of the forces acting on the bubble is established, and the motion equations of bubble are solved numerically. The axial and circumferential velocities of the swirling flow are approximated by the combination of 2 co‐flow Batchelor vortices. Notably, it is a promising way to obtain the analytical expression of velocity field in this gas‐liquid separator. The results indicate that the separation length will increase as decreasing diameter of bubble and swirl number. Hence, the numerical simulation provides an effective tool to predict bubble trajectory and optimize the design of the gas‐liquid separator.

show abstract

Section: Numerical Methodologymentioning

confidence: 99%

“…32 And the RSM model was capable of presenting the flow field in the separator with a good accuracy. 33 The simulations of Reynolds stresses for the liquid phase were performed by RSM in our works since the swirling flow structure and in such turbulent flow viscosity is typically nonisotopic.…”

Section: Turbulence Modelingmentioning

confidence: 99%

Numerical simulation of tritiated bubble trajectory in a gas-liquid separator

Qian

et al. 2017

Int J Energy Res

View full text Add to dashboard Cite

show abstract

“…The latter is mainly designed for the separation of fission gas in Molt Salt Reactor (MSR). The gas volume fraction in the gas-liquid mixture to be separated is <0.5%, and the flow pattern of which is dispersed bubble flow (Nana et al, 2013;Cai et al, 2014). Whether the flow pattern is annular flow or bubble flow, the flow of the gas-liquid two-phase fluid is stable relatively that is beneficial to the separation of gas-liquid mixture.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on a New Type of Separator for Gas Liquid Separation

Zheng¹,

Yang²,

Wang

et al. 2019

Front. Energy Res.

Self Cite

View full text Add to dashboard Cite

Gas-liquid separation technology is widely used in various fields of industrial production. In this research, a new kind of gas-liquid separator was proposed for the separation of gas-liquid mixture under different flow patterns. An inclined experimental system with an angle of 60 degrees from the vertical was established to test the new designed gas-liquid separator using of water and air as the working fluid. The experiment was conducted with the water flow rates covering 2.85-4.17 m 3 /h and the gas volume fraction covering 5-90%. Experiment results show that the separator can enable high efficient separation of gas-liquid mixtures under different patterns, especially under unstable flow patterns. The liquid level inside the separator is an important factor affecting the performance of the separator. On the basis of this, the critical liquid level of the separator was proposed for the practical application of the separator. This study fills the gap in the field of gas-liquid separation and provides a method for the separation of gas-liquid mixtures under different flow patterns.

show abstract

“…Molten salt reactor (MSR) is the sole liquid-fuel reactor among the six candidate reactors of the Generation IV advanced nuclear energy systems, and utilizes liquid molten fluoride salts simultaneously as fuel and coolant [1,2]. The major distinguishing characteristic of an MSR with a water reactor is that its fuel containing fissile cations dissolves in low-viscosity, high-boiling fluoride salt mixtures.…”

Section: Introductionmentioning

confidence: 99%

Immobilization of simulated radioactive fluoride waste in phosphate glass

et al. 2016

View full text Add to dashboard Cite

Radioactive alkali fluoride salts are generated during the operation of molten salt reactors (MSRs) and reprocessing of their spent fuel, and appear in the form of fluidity granule, or powder. In order to prevent the radionuclides from being released into the environment (especially, via exposure to water), it is necessary to develop a new technology for the temporary storage or final disposal of wastes containing radioactive fluorides. The immobilization of alkali fluoride wastes in phosphate glasses has been proposed. In this study, iron phosphate (IP) glasses and sodium aluminophosphate (NaAlP) glasses were evaluated for the immobilization of simulated radioactive fluoride wastes. IP and NaAlP glass matrixes were mixed with simulated wastes and reacted in air at temperatures in the range of 950-1200°C. A high waste loading was obtained in the experiment. The properties of the waste forms were characterized by X-ray diffraction and Raman spectroscopy. The latter indicated that IP glass contains less Q 2 without Q 3 (2 and 3 represent the number of bridging oxygens on a PO4 tetrahedron), and it is concluded that IP glass is more stable than NaAlP glass. Leaching tests were performed in deionized water by using the product consistency test A (PCT-A method), and the result shows that the leaching resistance of IP waste forms is better than that of NaAlP waste forms. This study demonstrates the potential of IP glass for the stabilization and immobilization of radioactive fluoride wastes from MSRs.

show abstract

Experimental study and numerical optimization on a vane-type separator for bubble separation in TMSR

Cited by 65 publications

References 12 publications

Numerical simulation of tritiated bubble trajectory in a gas-liquid separator

Numerical simulation of tritiated bubble trajectory in a gas-liquid separator

Experimental Study on a New Type of Separator for Gas Liquid Separation

Immobilization of simulated radioactive fluoride waste in phosphate glass

Contact Info

Product

Resources

About