Comparisons of MHD topping combined power generation systems

Kayukawa, Naoyuki

doi:10.1016/s0196-8904(00)00031-5

Cited by 14 publications

(6 citation statements)

References 3 publications

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“…A general comparison between various types of MHD generators and their combination with power generation cycles has been studied by Kayukawa. Results show that a connection between steam turbine cycle, gas turbine cycle, MHD generator, and gasification unit had the best efficiency in all of the cases that have been studied [10].…”

Section: Aims and Scopementioning

confidence: 92%

4E Analysis of Integrated MHD-Combined Cycle

Esmaeilzadehazimi

Manesh²,

Heleyleh

et al. 2019

International Journal of Thermodynamics

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In recent years, there have been increasing studies on topping cycles of combined cycle power plants with very high working temperature (about 3000 K). One of the thermal cycles, which have the ability to work in this temperature range, is MHD-Magneto hydrodynamic-cycle. MHD cycle can operate in two states. One state is the open cycle, and the other one is the close cycle. In both mentioned states there is a large amount of waste heat that can be recovered. It seems that the use of recovered heat from MHD cycles as the heat source for a gas turbine cycle namely Brayton according to their working temperature is promising. The objective of this study focused on energetic, exergetic, exergoeconomic and environmental (4E) analysis and evaluation of a proposed cycle based on the integration of combined cycle with MHD generator as the topping cycle. In this regard, the thermodynamic simulation of the plant has been performed. To verify of the thermodynamic simulation, the results have been compared with Thermoflex software and the data in the literature. In addition, exergetic, exergoeconomic, and environmental modeling and evaluation have been performed through computer code. The results show the good accuracy of the thermodynamic simulation for the integrated system. Also, the proposed cycle has a higher efficiency with the lower cost of exergy destruction and lower emission.

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Section: Aims and Scopementioning

confidence: 92%

4E Analysis of Integrated MHD-Combined Cycle

Esmaeilzadehazimi

Manesh²,

Heleyleh

et al. 2019

International Journal of Thermodynamics

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“…Kayukawa et al compared the efficiency of six MHD topping combined power plants. Assuming the generator enthalpy extraction of 30% in all cases, the maximum efficiency of 65% was achieved that was greater than the efficiency of the combined cycle without MHD generator which was estimated to be almost 51% [7].…”

Section: Introductionmentioning

confidence: 89%

“…The vertical component of the electric current on insulation walls and on inlet and outlet equals to zero [9]. The following relation is applied on these boundaries [7,20]:…”

Section: Numerical Modeling Of the Mhd Generatormentioning

confidence: 99%

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Investigating the effect of channel angle of a subsonic MHD (Magneto-Hydro-Dynamic) generator on optimum efficiency of a triple combined cycle

Khalili

Dehkordi

Giahi

2015

Energy

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“…The duct is fed with a gas, which derives from a combustion chamber or a gasifier [2] [3]. On the basis of the experimental data retrieved from the literature, it can be assumed that the charge carries concentration, due to the discharge, is about 10 14 ne/cm 3 [4].…”

Section: Physical Aspectsmentioning

confidence: 99%

Sensitivity analysis of design parameters of an inductive MHD generator

Montisci

Pintus

2010

Speedam 2010

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A numerical experiment of a new MagnetoHydroDynamic (MHD) generator is presented. The proposed device does not need an external magnetic field to work, but it performs the energy conversion by means of the induction principle. This is possible thanks to a pulsed ionization of the fluid current, carried out with an electrode dipped in the fluid current, followed by a charge separation with a stationary electric field. In this work a study has been done to evaluate and improve the performance of the proposed device.

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Comparisons of MHD topping combined power generation systems

Cited by 14 publications

References 3 publications

4E Analysis of Integrated MHD-Combined Cycle

4E Analysis of Integrated MHD-Combined Cycle

Investigating the effect of channel angle of a subsonic MHD (Magneto-Hydro-Dynamic) generator on optimum efficiency of a triple combined cycle

Sensitivity analysis of design parameters of an inductive MHD generator

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