Magnetohydrodynamic Electrical Power Generation

Magnetohydrodynamic Electrical Power Generation PDF Author: Hugo K. Messerle
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 224

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Book Description
Magnetohydrodynamic Electrical Power Generation Hugo K. Messerle University of Sydney, Australia The global demand for energy continues to grow. Magnetohydrodynamic (MHD) conversion processes offer a highly efficient, clean and direct conversion of energy for power generation and propulsion. By converting the kinetic energy of a flowing fluid into electricity directly, MHD systems help address the problems of environmental pollution. At the same time MHD is particularly suitable for primary energy sources or fuels providing energy at temperatures extending far beyond those manageable by any conventional thermal conversion plant. It therefore offers a potentially more effective utilisation of fossil and nuclear fuels. The author covers all aspects of MHD power generation, including the design and operation of MHD conversion systems in practice. Features include: A comprehensive introduction to the principles behind the interaction of magnetic field and electric currents with electrically conducting fluids in the conversion of energy. Coverage of all aspects of generator configurations, as well as the disk generator, multi-phase converters, and propulsion systems. Study of the design for AC power generation, covering the control and power conditioning of the generator and the integration of such designs into existing power systems. Study of the use of MHD plant as part of a topping cycle combined with a steam and/or gas turbine or ternary cycle potentially leading to combined cycle efficiencies of up to 60%. Relevant worked examples in each chapter to assist the reader with self-study and the understanding of the topic. This text will appeal to advanced students in power engineering, physics and mechanics. Practising engineers and scientists is the field of power technology will find if an excellent practical reference and a basis for developing ideas on large scale MHD processes. Magnetohydrodynamic Electrical Power Generation forms a part of the Energy Engineering Learning Package. This innovative distance learning package has been established to train power engineers to meet today’s and tomorrow’s challenges in this exciting field. Organised by a team of distinguished, international academics, the modular course is aimed at advanced undergraduate and postgraduate students, as well as power engineers working in industry. World Solar Summit Process

High Pulsed Power, Self Excited Magnetohydrodynamic Power Generation Systems

High Pulsed Power, Self Excited Magnetohydrodynamic Power Generation Systems PDF Author: B. Zauderer
Publisher:
ISBN:
Category :
Languages : en
Pages : 132

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Book Description
The objective of this study was to examine the feasibility of achieving high power, high energy, repetitive pulses over a multi-second period, using a portable, self-excited, magnetohydrodynamic (MHD) generator system. To assure a compact, portable system, a room temperature MHD magnet, and operation without a supersonic diffuser was assumed. The approach selected was to use a cw, self-excited, MHD generator to provide the power for the magnetic field in a shaped explosive, argon plasma, MHD generator. The latter's output power pulses are converted in a pulse shaping network to the ultimate load. For the cw generator, a novel system consisting of a non-equilibrium MHD generator, with a noble gas working fluid, and heated directly with a high energy chemical fluid, was used. A novel, compact room temperature magnet was used with the cw MHD generator. This generator's system power output per unit volume and per unit total system weight is much higher than the values obtainable in high energy liquid or solid rocket fuel driven, combustion MHD generators. Among the barrier problems to the use of the shaped explosive, argon plasma MHD generator is survival of all the components for more that one pulse. It was found that the use of the novel cw MHD generator system directly with a pulsed forming network, and completely eliminating the explosive generator, resulted in a superior system performance compared to the best levels projected with advanced explosive and combustion MHD generators. Keywords: Explosive magneto hydrodynamics, Metal fuel combustion. (JHD).

Magnetohydrodynamic Electrical Power Generation

Magnetohydrodynamic Electrical Power Generation PDF Author: Hugo K. Messerle
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 224

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Book Description
Magnetohydrodynamic Electrical Power Generation Hugo K. Messerle University of Sydney, Australia The global demand for energy continues to grow. Magnetohydrodynamic (MHD) conversion processes offer a highly efficient, clean and direct conversion of energy for power generation and propulsion. By converting the kinetic energy of a flowing fluid into electricity directly, MHD systems help address the problems of environmental pollution. At the same time MHD is particularly suitable for primary energy sources or fuels providing energy at temperatures extending far beyond those manageable by any conventional thermal conversion plant. It therefore offers a potentially more effective utilisation of fossil and nuclear fuels. The author covers all aspects of MHD power generation, including the design and operation of MHD conversion systems in practice. Features include: A comprehensive introduction to the principles behind the interaction of magnetic field and electric currents with electrically conducting fluids in the conversion of energy. Coverage of all aspects of generator configurations, as well as the disk generator, multi-phase converters, and propulsion systems. Study of the design for AC power generation, covering the control and power conditioning of the generator and the integration of such designs into existing power systems. Study of the use of MHD plant as part of a topping cycle combined with a steam and/or gas turbine or ternary cycle potentially leading to combined cycle efficiencies of up to 60%. Relevant worked examples in each chapter to assist the reader with self-study and the understanding of the topic. This text will appeal to advanced students in power engineering, physics and mechanics. Practising engineers and scientists is the field of power technology will find if an excellent practical reference and a basis for developing ideas on large scale MHD processes. Magnetohydrodynamic Electrical Power Generation forms a part of the Energy Engineering Learning Package. This innovative distance learning package has been established to train power engineers to meet today’s and tomorrow’s challenges in this exciting field. Organised by a team of distinguished, international academics, the modular course is aimed at advanced undergraduate and postgraduate students, as well as power engineers working in industry. World Solar Summit Process

Energy Research Abstracts

Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 840

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Book Description


Self-excited Closed Cycle MHD Generator Driven by Non-equilibrium Plasma Generator (NPG) for Pulsed Power Supply

Self-excited Closed Cycle MHD Generator Driven by Non-equilibrium Plasma Generator (NPG) for Pulsed Power Supply PDF Author: N. Harada
Publisher:
ISBN:
Category :
Languages : en
Pages :

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ERDA Energy Research Abstracts

ERDA Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 848

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Book Description


Technical Reports Awareness Circular : TRAC.

Technical Reports Awareness Circular : TRAC. PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 516

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Book Description


Technical Abstract Bulletin

Technical Abstract Bulletin PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 912

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Explosively Driven Pulsed Power

Explosively Driven Pulsed Power PDF Author: Andreas A. Neuber
Publisher: Springer Science & Business Media
ISBN: 354028673X
Category : Technology & Engineering
Languages : en
Pages : 282

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Book Description
While the basic operating principles of Helical Magnetic Flux Compression Generators are easy to understand, the details of their construction and performance limits have been described only in government reports, many of them classified. Conferences in the field of flux compression are also dominated by contributions from government (US and foreign) laboratories. And the government-sponsored research has usually been concerned with very large generators with explosive charges that require elaborate facilities and safety arrangements. This book emphasizes research into small generators (less than 500 grams of high explosives) and explains in detail the physical fundamentals, construction details, and parameter-variation effects related to them.

Explosive Pulsed Power

Explosive Pulsed Power PDF Author: Larry L. Altgilbers
Publisher: World Scientific
ISBN: 1848163223
Category : Technology & Engineering
Languages : en
Pages : 597

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Book Description
Explosive pulsed power generators are devices that either convert the chemical energy stored in explosives into electrical energy or use the shock waves generated by explosives to release energy stored in ferroelectric and ferromagnetic materials. The objective of this book is to acquaint the reader with the principles of operation of explosive generators and to provide details on how to design, build, and test three types of generators: flux compression, ferroelectric, and ferromagnetic generators, which are the most developed and the most near term for practical applications. Containing a considerable amount of new experimental data that has been collected by the authors, this is the first book that treats all three types of explosive pulsed power generators. In addition, there is a brief introduction to a fourth type ix explosive generator called a moving magnet generator. As practical applications for these generators evolve, students, scientists, and engineers will have access to the results of a considerable body of experience gained by almost 10 years of intense research and development by the authors.

An Innovative Demonstration of High Power Density in a Compact Magnetohydrodynamic Generator

An Innovative Demonstration of High Power Density in a Compact Magnetohydrodynamic Generator PDF Author: H. J. Schmidt
Publisher:
ISBN:
Category :
Languages : en
Pages : 120

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Book Description
Magnetohydrodynamic (MHD) energy conversion is a candidate technology for satisfying the pulse power requirements for advanced weapon and discrimination systems for the Strategic Defense Initiative. However, to be competitive with alternative pulse power concepts utilizing nuclear or stored energy schemes the characteristic power per unit weight and volume of the MHD system requires improvement in performance well beyond the levels demonstrated in the past. In this regard, there are two primary performance parameters of concern: the power density and the specific energy. The power density is the ratio of the electrical energy output to the internal volume of the generator channel. The MHD process is a volumetric process and the power density is therefore a direct measure of the compactness of the system. As such, it controls the size and weight of a MHD power generating system for a given power output. The greater the characteristic power density, the smaller and lighter the channel, magnet, combustor and flow train will be. The second parameter, the specific energy, is the ratio of the electrical energy output to consumable energy used for its production. In the case of a chemically driven MHD system, the specific energy is a direct measure of the conversion efficiency from the latent chemical energy to electrical energy. In pulse power MHD systems with short operating durations the specific energy is the controlling parameter for the weight and volume of the stored reactants used to power the system. The two parameters are conceptually interrelated, and for a given mission scenario maximization of both, in general, are required for optimization of the system. However, for short operating durations the power density is the dominant parameter; whereas, for long durations, the specific energy is the dominant parameter.