Pressure drop measurements for woven metal mesh screens used in electrical safety switchgears

Bussière, William; Rochette, David; Clain, Stéphane; André, Pascal; Renard, Jean‐Baptiste

doi:10.1016/j.ijheatfluidflow.2017.02.008

Cited by 17 publications

(24 citation statements)

References 31 publications

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“…Moreover, the drag force model for RPBs in their work is derived from the single‐phase model proposed by Kołodziej 40 . This single‐phase model has been modified and improved by Kołodziej et al 43 and Bussière et al 44 Therefore, to further improve the simulation accuracy of RPBs, it is necessary to test and compare the accuracy of the new multiphase drag force models for RPBs derived from the modified single‐phase drag force models.…”

Section: Introductionmentioning

confidence: 99%

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Zhang

Xie²,

et al. 2022

AIChE Journal

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Rotating packed beds (RPBs) are ideal candidates for CO2 removal from offshore natural gas due to their good mass transfer performance and significant volume savings. This article proposes an Eulerian multi‐fluid approach to simulate the gas–liquid flow in RPBs. Three new multiphase drag force models are constructed based on single‐phase drag force models for wire mesh packings. Based on the Eulerian multi‐fluid approach, a new RPB simulation framework is developed. The predicted results using the new simulation framework with the new drag force models are compared with the experimental data. When using the Kołodziej model and the modified Kołodziej model, the predicted overall liquid holdup shows good agreement with the experimental data with errors less than 20%. In addition, the pressure drop predicted by these three models are reasonable compared with the experimental data. This work lays a foundation for RPB simulation of gas–liquid flow using Eulerian multi‐fluid approach.

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Section: Introductionmentioning

confidence: 99%

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Zhang

Xie²,

et al. 2022

AIChE Journal

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“…Sudden pressure reduction and changes in flow direction inside the intake screens may lead to the formation of vortices in the suction pipes. Only a few researchers have conducted numerical simulations in order to solve the flow field and determine the flow pattern within and around the screen [20][21][22][23][24]. Unlike the previous researchers that have obtained results from the studies carried out on the friction factor and the pressure drop in the screen, the present study in a different manner surveys the vortex formation, flow patterns and flow uniformity inside a metal screen of the water intake system of a pumping station under tidal conditions.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of vortex formation in water intake system of a pumping station during low and high tides

2021

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The performance of pumps installed in pumping stations depends greatly on vortex formation at pipe intakes. Using numerical simulations and experimental methods, this study focuses on vortex formation in water intake system of a pumping station under the tidal conditions of the Bahmanshir River. The intake system consisted of a suction pipe and a fine intake screen. Realizable k–ε turbulence model together with volume of fluid (VOF) two-phase (water–air) model are used to simulate the flow field in the water intake system. Vortex formation, flow pattern and flow uniformity are investigated. Water levels and free surface velocities of the river are measured in a 1-year period. The water levels range from 2.1 to 4.9 m and the corresponding free surface velocity varies from 1.05 to 2.35 m/s. The numerical results show that two wall-attached vortices permanently stretched to the intake screen. Additionally, two symmetrical vortices with different intensities formed in the intake screen. As the submergence of the intake pipe decreases during low tides, stronger vortices arise in the screen. Analysis of the velocity uniformity shows low level of flow uniformity at the pump intake. Low level of uniformity is attributed to the existence of the intake screen and its check valve, which facilitates the formation of vortices in the suction pipe. Based on present analysis, recommendations for modifications and improvements to the design of the pumping station are presented.

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“…Setekleiv and Svendsen [8] measured the dry pressure drop for 8 wire mesh pads with three fluid systems: one low pressure system using air and two high pressure systems using nitrogen and natural gas. Bussière et al [9] experimentally investigated the correlation between the pressure loss (friction factor) and velocity (Reynolds number) on the system of woven metal screens being the friction inducer and water being the working fluid. These screens are usually used as filters in LV circuit breakers.…”

Section: Introductionmentioning

confidence: 99%

Pressure Drop Measurements and Simulations for the Protective Mesh Screen Before the Gas Turbine Compressor

Nie

Yin

Yan

et al. 2021

Advances in Transdisciplinary Engineering

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This paper characterizes the pressure drop of incompressible airflow when passing by a metal mesh screen which acts as a protection from sucking foreign solid matters before the gas turbine compressor. The wire diameter is 1.2mm and the mesh number is 3. Two experiments are conducted in different time period of a day to guarantee the experimental repeatability. The experimental data are used in regression analysis to obtain a quadratic correlation between the pressure drop across the screen and the fluid velocity. Numerical simulations are utilized to investigate detailed velocity and pressure fields around the wires and the Standard k-ε turbulence model is used. The results show that the fluid suffers from around 140Pa and 250Pa total pressure drop at the velocity of 20m/s and 30m/s respectively. The pressure closely upstream of the wires is as high as 4 times of the inlet flow level, while wide negative pressure regions are observed downstream of the wires resulting from fluid stagnation, reverse flow and recirculation. The empirical correlation obtained in the paper has a high confidence level and can be used in calculating the overall pressure drop of the gas turbine air intake system.

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Pressure drop measurements for woven metal mesh screens used in electrical safety switchgears

Cited by 17 publications

References 31 publications

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Numerical investigation of vortex formation in water intake system of a pumping station during low and high tides

Pressure Drop Measurements and Simulations for the Protective Mesh Screen Before the Gas Turbine Compressor

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