A novel centrifugal gas–liquid separator for catching intermittent flows

Creutz, Matthias; Mewes, Dieter

doi:10.1016/s0301-9322(98)00018-4

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…The accumulation of gas pockets in the impeller hub is used to remove the air. Creutz and Mewes (33) developed a centrifugal system to separate transient gas-liquid flow that can also handle solid particles. In the pump, the gas moves radially inwards and leaves the separator through a dedicated outlet.…”

Section: Pumping and Separation Systemmentioning

confidence: 99%

“…The purpose of this PASS is to damp the slug flow at the inlet of the system with almost no regard on the removing of liquid particles from the gas flow. Patents on PASSs (34,35) contain different designs than the one of Creutz and Mewes (33) but use the same principle: liquid centrifugation for pumping purposes and in shaft or in blades gas extraction. A PASS for aircraft oil system is found in a patent of Lorenz and Gattinger (36) .…”

Section: Pumping and Separation Systemmentioning

confidence: 99%

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Dimensional analysis of an integrated pump and de-aerator solution in more electric aero engine oil systems

Steimes

Hendrick

2017

Aeronaut. j.

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Aero-engine oil systems need to pump and de-aerate air-oil flows. Engine sub-components performing these tasks are undergoing important changes due to the development of more-electric engines. A new integrated pump and separation system that can be electrically entrained was developed and characterised experimentally to reduce footprint on the engine and increase reliability and performance. This prototype combines the pumping, de-aeration and de-oiling function of the scavenge part of oil systems. Previous works have failed to address in-flight performance of the prototype. To address this need, a dimensional analysis of the Pump and Separation System that allows in-flight performance prediction is proposed in this paper. This model is used to assess different prototype sizes and the influence of a more-electric engine. This analysis illustrates that by switching to an electric entrainment, the footprint of the Pump and Separation system on the engine is reduced by 34%, and de-aeration performances are improved by 55% at maximum take-off and 17% in cruise phase. This study opens the way for a more accurate design of the prototypes based on engine requirements.

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Section: Pumping and Separation Systemmentioning

confidence: 99%

Section: Pumping and Separation Systemmentioning

confidence: 99%

Dimensional analysis of an integrated pump and de-aerator solution in more electric aero engine oil systems

Steimes

Hendrick

2017

Aeronaut. j.

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“…Ahn et al [8] studied Centrifugal gas-liquid separation under low gravity conditions, where flow pattern effect was also considered. Creutz and Mewes [9] studied the separation only in intermittent flows. Additionally, there are also few numerical simulations to disclose the mechanism [10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Icone19-43328 Performance Analysis of Cyclone Separator and Its Optimization

Huang

Wen

Wang

2011

ICONE

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Primary separators in pressurized water reactors (PWRs), cyclone separators, separate most water from vapor-water twophase mixture, which is important to safety and economics of nuclear power plants. To improve the performance of cyclone separators, we propose new structures including inlet impeller, porosity and conical angle of the chamber wall. Aiming at the new structures, this paper analyzes separation efficiency and pressure drop experimentally in air-water two-phase flows. Results show that separation efficiency and pressure drop have always opposite trends but with similar transition boundaries under all the new structures. Each of the structural parameters has effect on separator performance, but none of the trends is monotonical as phase velocity increasing. The comprehensive performance is determined by separator structure as well as flow patterns. From the investigations in this paper, it is promising to deeply understand the separation mechanism and further to provide enough data to design large-scaled separators of CAP1400.

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“…Kendoush and Sarkis [9] used an X-ray tube and scintillation detectors for void fraction measurements. An electro-resistance tomography has been applied by Creutz and Mewes [10] to measure the concentration distribution inside a gas-liquid centrifugal pump. Simkhis [11] used a resistance tomography in order to obtain the chord concentration of a solid-liquid mixture as a function of the vertical coordinate.…”

Section: Introductionmentioning

confidence: 99%