HVEPS Combustion Driven MHD Power Demonstration Tests

Moeller, Trevor M.; Rhodes, Ryan E.; Lineberry, J.T.; Llc, LyTec; Begg, Lester L.; Litchford, Ron J.

doi:10.2514/6.2008-4097

Cited by 16 publications

(5 citation statements)

References 1 publication

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“…The power system was a power production level of 10MW with multiple power bursts (up to 10 seconds duration) for an overall mission power on time of 600 seconds. The system also had to have the capability of burst operation (turn-on and turn-off on demand) in addition to these, an overall power system weight (payload weight) of less than 10,000 kg was targeted [2][3][4].In the early HVEPS, there have two kinds of power systems. One is absolute power system.…”

Section: Mhd Generatormentioning

confidence: 99%

Application of Magneto Hydrodynamics (MHD) in Hypersonic Vehicle

Li¹,

Wang²,

Li³

2013

AMR

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It is very important to develop the technology of the hypersonic vehicle along with the demand of many countries. This article summarizes the technology of MHD flow control and MHD generator and analyzes key technical issues of application of MHD. It included increase theoretic research and found accurate 3D model of MHD flow. The first, it needs to develop technology of large dimension plasma generator to impose effect of MHD in scramjet, at the same time it also needs to consider weight volume material and thermal protective; The second, it needs to build model of MHD energy bypass and calculate range of application of MHD.

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Section: Mhd Generatormentioning

confidence: 99%

Application of Magneto Hydrodynamics (MHD) in Hypersonic Vehicle

Li¹,

Wang²,

Li³

2013

AMR

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“…4) The recent study concerned with the MHD acceleration is examined in research institutions including National Aeronautics and Space Administration (NASA). [5][6][7] The MHD has the potential to achieve both high thrust and high specific impulse simultaneously using electro-magnetic Lorentz forces (j Â B) attained by the interaction of electric and magnetic fields. 8,9) MHD accelerator application is classified into an electric power system or an option of chemical and arc thruster.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Current Distribution and Thrust in Diagonal Pulsed Magnetohydrodynamic Accelerator

Promson

Sugawara

Takahashi

et al. 2018

Trans. Japan Soc. Aero. S Sci.

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This study aims to investigate the incremental thrust in a diagonal magnetohydrodynamic (MHD) accelerator as a function of the number of segmented electrodes, the applied magnetic-flux density, and the different setting of diagonal angle. The peak incremental thrust obtained from the numerical result was agreement with that of the experimental result. For understanding the characteristics of current vector distribution in a diagonal MHD accelerator, we calculated the current vector as the function of a number of segmented electrodes, the applied magnetic-flux density and the different setting of diagonal angle. The simulations showed the current vector distribution inside the MHD channel as well as the current flow crossed into tungsten wires as a diagonal connection of the MHD channel. From these numerical simulations, the tilt angle of current vector distribution was changed by Faraday current in the MHD channel, which was controlled by the magnetic field.

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“…Thus, the diagonal MHD generator is considered suitable for a scramjet engine-driven MHD generator. However, in the HVEPS program, experiments [4] on a Hall Conducting Wall (HCW) MHD generator with a circular cross-section driven by a separate combustion chamber from the scramjet engine were also performed. The HCW-MHD generator is a generator with the frame electrodes perpendicular to the direction of flow.…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Scramjet‐Driven Experimental DCW‐MHD Generators with Different Cross‐Sections

Niwa

Takahashi

Fujino

et al. 2014

Electrical Engineering Japan

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SUMMARYThe purpose of this study is to examine the influence of the shape of the cross-section of a scramjet engine-driven experimental diagonal conducting wall (DCW)-MHD generator on generator performance by three-dimensional numerical analyses. We have designed MHD generators with symmetric square and circular cross-sections, based on an experimental MHD generator with an asymmetric square cross-section. Under the optimum load conditions, the electric power output reaches 26.6 kW for the asymmetric square cross-section, 24.6 kW for the symmetric square cross-section, and 22.4 kW for the circular cross-section. The highest output is obtained for the experimental generator with the asymmetric square cross-section. The difference in the electric power output is induced by the difference of flow velocity and boundary layer thickness. For the generator with the asymmetric square cross-section, the average flow velocity is highest and the boundary layer is thinnest. The compression wave is generated with dependence on the channel shape. The difference in the flow velocity and boundary layer thickness is induced by the superposition of the compression wave. C⃝ 2014 Wiley Periodicals, Inc. Electr Eng Jpn, 187(2): 9-16, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com).

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HVEPS Combustion Driven MHD Power Demonstration Tests

Cited by 16 publications

References 1 publication

Application of Magneto Hydrodynamics (MHD) in Hypersonic Vehicle

Application of Magneto Hydrodynamics (MHD) in Hypersonic Vehicle

Numerical Study of Current Distribution and Thrust in Diagonal Pulsed Magnetohydrodynamic Accelerator

Performance Comparison of Scramjet‐Driven Experimental DCW‐MHD Generators with Different Cross‐Sections

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