Experimental and numerical study of a liquid metal magnetohydrodynamic generator for thermoacoustic power generation

Zhu, Shunmin; Wang, Tong; Jiang, Chao; Wu, Zhanghua; Yu, Guoyao; Hu, Jianying; Markides, Christos N.; Luo, Ercang

doi:10.1016/j.apenergy.2023.121453

Cited by 12 publications

(4 citation statements)

References 45 publications

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“…Electric power increases as Hartmann (Ha) number values increase, but this does not occur when substantial values of Ha number are reached through a simulation study performed by Cosoroaba et al, [4,6]. The relationship between oscillation frequency and voltage, whereas current is found to rise almost linearly, observed by Domínguez-Lozoya et al, [8,10]. Gupta, Taylor, and Krupenkin [14,16] found that a MHD generator using a rotating impeller is able to generate up to 3 W of power and shows an optimum point of power produced at a current of 6 A due to a saturation limit of the material.…”

Section: Introductionmentioning

confidence: 95%

“…Earlier development of MHD generator using simple chamber geometry as a channel for conducting fluid to flows, such as vertical duct [1][2][3][4], horizontal duct [3,[5][6][7][8][9] horizontal with reciprocating system to produce alternating current (AC) experimented by Domínguez-Lozoya et al, [8,10] and cylindrical annular geometry theoretically studied by Pérez-Orozco J.A. and Ávalos-Zúñiga R. A.…”

Section: Introductionmentioning

confidence: 99%

“…[9,11]. The most significant energy loss in this type of channel occurs due to end effects caused by the magnetic field's non-homogeneity and the electrodes' finite length [8,[10][11][12]. This can be solved by creating a vortex chamber that maximizes its power production in such a compact shape.…”

Section: Introductionmentioning

confidence: 99%

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Multi-Objective Optimization of Vortex Magnetohydrodynamics (MHD) Generator using Response Surface Methodology

Arleen Natalie,

Ridho Irwansyah,

Budiarso

et al. 2024

ARFMTS

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The introduction of electromagnetic fields in fluid dynamics in magnetohydrodynamics (MHD), particularly when those fields are vector and non-uniform, complicates its application in vortex geometry. The imperative to optimize MHD generators arises from the inherent trade-off between voltage and pressure drop in energy conversion systems, to maximize voltage output while minimizing associated pressure drop. This study focuses on optimizing vortex MHD generators by applying Response Surface Methodology (RSM), which is based on mathematical models that capture the complex relationships between factor and response variables. This method offers a comprehensive approach to obtaining the optimum solution to the objectives, voltage and pressure drop, based on fluid velocity and magnetic field strength input parameters. Numerical optimization RSM generates 11 solutions. The optimum solutions obtained are a velocity of 1.415 m/s, and magnetic field strength of 0.43 T, and the corresponding optimum output voltage and pressure drop will be 4.264 mV and 4.254 psi, respectively, with a desirability level of the selected solution is 0.770. This study suggests the RSM method shows a good measurement of R2 and RSME. Our findings contribute to the understanding of optimizing vortex MHD generators and offer insights into achieving efficient energy conversion systems of a set of optimum generator operating parameters.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multi-Objective Optimization of Vortex Magnetohydrodynamics (MHD) Generator using Response Surface Methodology

Arleen Natalie,

Ridho Irwansyah,

Budiarso

et al. 2024

ARFMTS

View full text Add to dashboard Cite

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“…An alternative solution using electrically conducting gas instead of liquid metal is proposed by Montisci et al in [17]. Moreover, a new series of numerical and experimental research has been presented recently in [18], where another conduction-type liquid metal MHD generator, coupled with a thermoacoustic motor, is constructed with InGaSn as a working body. In [19], a three-stage thermoacoustic engine implementation into the MHD power generator is described.…”

Section: Introductionmentioning

confidence: 99%

A Liquid Metal Alternate MHD Disk Generator

Alemany,

Brekis,

Montisci

2023

Sustainability

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In this paper, an electrical generator is presented for the exploitation of alternating energy. Some renewable sources are directly available in such forms, such as the wave power obtainable from the sea, but most of them can be converted to alternative forms; therefore, the proposed generator can be applied to different kinds of renewable sources. In particular, the proposed system is thought to be coupled with a thermoacoustic engine, which converts heat into mechanical vibration without using solid moving parts. This opens the proposed system to the use of most thermal sources, such as solar radiation, waste recovery, geothermic, car exhaust, and others. The object of of this present work concerns the transformation of alternating mechanical energy into electricity by using a specific type of magnetohydrodynamic (MHD) disk generator. The functioning of this generator is based on the interaction between a DC magnetic field embedded in a disk structure and a conducting fluid held in an inner channel. A simplified model of the generator is presented here, and a sensitivity analysis is performed. It is shown that, under specific operating conditions, the efficiency of the system can reach 70% with a level of power of hundreds of watts.

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Fractional analysis of unsteady radiative brinkman-type nanofluid flow comprised of CoFe2O3 nanoparticles across a vertical plate

Bilal,

Ali,

Mahmoud

et al. 2023

J Therm Anal Calorim

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Experimental and numerical study of a liquid metal magnetohydrodynamic generator for thermoacoustic power generation

Cited by 12 publications

References 45 publications

Multi-Objective Optimization of Vortex Magnetohydrodynamics (MHD) Generator using Response Surface Methodology

Multi-Objective Optimization of Vortex Magnetohydrodynamics (MHD) Generator using Response Surface Methodology

A Liquid Metal Alternate MHD Disk Generator

Fractional analysis of unsteady radiative brinkman-type nanofluid flow comprised of CoFe2O3 nanoparticles across a vertical plate

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