Numerical Simulation of Gas Flow Field in Gas-Liquid Hydrocyclone Separator

Jin, Xiang Hong; Han, Feng Shuang; Zhang, Jin Liang; Hui, Huang; Liu, Xin Wen

doi:10.4028/www.scientific.net/amm.109.509

Cited by 4 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Weidong Ye [8] conducted an analysis of the working principle of gravity gas-liquid separators through numerical simulations, quantifying the impact of structural parameters on separation efficiency. Meanwhile, Yang Qin [9] investigated the internal flow field using the particle model of the Eulerian-Eulerian method within a multiphase flow framework. The simulation results were in good agreement with experimental findings, demonstrating the feasibility of the turbulence model and algorithm.…”

Section: Research Statusmentioning

confidence: 99%

The Analysis of Gas-liquid Separation Technology Research Progress

Yuan

2024

E3S Web Conf.

View full text Add to dashboard Cite

Gas-liquid separators are commonly utilized in the energy and chemical industries. This paper briefly introduces the separation principles and research progress of the primary gas-liquid separation equipment domestically and internationally. The paper briefly summarizes the working principles of gravity separation, filtration separation, and centrifugal separation equipment. Next, attention is focused on optimizing the separation performance of centrifugal separation equipment, which offers advantages of small size and high separation efficiency. Finally, a comparative analysis of these gas-liquid separators is provided.

show abstract

Section: Research Statusmentioning

confidence: 99%

The Analysis of Gas-liquid Separation Technology Research Progress

Yuan

2024

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…Hydrogen gas flow rate through the recirculation blower is shown in Equation ( 12): (12) In Equation ( 12), 𝑚̇𝑏 𝑙,𝑐 is the corrected gas mass flow rate through the recirculation blower, kg/s; 𝜌 𝑟𝑚 is the gas density in the exhaust common rail; 𝑑 𝑏𝑙 is the diameter of the recirculation blower, m; 𝑈 𝑏𝑙 is the linear velocity at the tip of the rotor blades, m/s; 𝜙 𝑏𝑙 is a dimensionless parameter which can be obtained through fitting…”

Section: Hydrogen Recirculation Blower Modelmentioning

confidence: 99%

“…Flow resistance can measure the pressure drop generated during the gas-water separation process. In this paper, a separation efficiency of 95% is assumed [12] .…”

Section: Gas-water Separator Modelmentioning

confidence: 99%

Model Predictive Control of Hydrogen Pressure of Multi-Stack Fuel Cell System

2023

acss

View full text Add to dashboard Cite

To control and stabilize the hydrogen pressure in a multi-stack fuel cell system, a dynamic simulation model of a multi-stack fuel cell hydrogen system structure containing supply and exhaust common rail is built based on Matlab/Simulink. In the control method, the idea of local linearization was adopted. Local linearization models of the system around different steady-state operating points were built and model predictive controller for each interval was designed. This multi-point linearized control model can improve the solution speed and reduce the impact caused by the mismatch problem. The results show that under step operating condition, the deviation of the reactor inlet pressure can be reduced by 22.5%, and the adjustment time can be reduced from 31 to 22 seconds. Under C-WTVC operating condition, power consumption of the blower in the hydrogen system is reduced by 13.6% compared with that of the conventional PID. It is concluded that the controller designed in this paper is better than the traditional PID controller and is more suitable for the hydrogen system of the multi-stack fuel cell.

show abstract

“…Numerical and experimental studies on the structural parameters of the cyclone and its degassing efficiency have been conducted [10][11][12][13]. The research shows that the bubbles mixed into the oil can be effectively eliminated with an appropriate design for the structure of the cyclone separator.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Bubble Flow Mechanism and Characteristics in Gas–Liquid Cyclone Separator

et al. 2021

View full text Add to dashboard Cite

The separation of bubbles in a gas–liquid cyclone is complicated. A combination of numerical simulation and visual experimentation was considered apt to reveal the microscopic mechanisms of bubble flow. First of all, cyclones with different structures were numerically simulated. The calculation results show that the larger the diameter of the exhaust port, the better the bubble flow effect. When the exhaust port diameter was 24 mm, the gas discharge efficiency was 8% higher than that with an exhaust port diameter of 16 mm. The sequence of the bubble flow effect of a four-structure cyclone was obtained, and the gas discharge efficiency of the cyclone with a rectangular inlet was 7% higher than that of the trapezoidal inlet. Finally, a visual experimental platform was built to compare the rectangular inlet cyclone and spiral inlet cyclone with the best bubble flow effect. In accordance with the simulation numerical calculations, the bubble flow effect of the rectangular inlet cyclone was better than that of the spiral and trapezoid inlet cyclones, and the rectangular inlet in the middle was better. This article provides a specific theory and experience to guide further research on the separation mechanism, flow field characteristics and structurally optimal design of gas–liquid cyclones.

show abstract

Numerical Simulation of Gas Flow Field in Gas-Liquid Hydrocyclone Separator

Cited by 4 publications

References 13 publications

The Analysis of Gas-liquid Separation Technology Research Progress

The Analysis of Gas-liquid Separation Technology Research Progress

Model Predictive Control of Hydrogen Pressure of Multi-Stack Fuel Cell System

Analysis of Bubble Flow Mechanism and Characteristics in Gas–Liquid Cyclone Separator

Contact Info

Product

Resources

About