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This book is a comprehensive set of articles reflecting the latest advances and developments in mathematical modeling and the design of electrical machines for different applications. The main models discussed are based on the: i) Maxwell–Fourier method (i.e., the formal resolution of Maxwell’s equations by using the separation of variables method and the Fourier’s series in 2-D or 3-D with a quasi-Cartesian or polar coordinate system); ii) electrical, thermal and magnetic equivalent circuit; iii) hybrid model. In these different papers, the numerical method and the experimental tests have been used as comparisons or validations.

surface-mounted PM machines --- torque pulsation --- magnet shape optimization --- analytical expression --- 2D --- electromagnetic performances --- finite iron relative permeability --- numerical --- sinusoidal current excitation --- subdomain technique --- switched reluctance machine --- scattering matrix --- Fourier analysis --- permanent magnet machines --- analytical modeling --- analytical model --- high-speed --- sleeve --- non-homogeneous permeability --- permanent-magnet --- partial differential equations --- separation of variable technique --- electrical machines --- surface inset permanent magnet --- electric machines --- permanent magnet motor --- rotating machines --- hybrid excitation --- magnetic equivalent circuits --- 3D finite element method --- eddy-current losses --- experiment --- hybrid model --- magnetic equivalent circuit --- Maxwell–Fourier method --- analytical method --- eddy-current --- finite-element analysis --- loss reduction --- permanent-magnet losses --- thermal analysis --- linear induction motors --- complex harmonic modeling --- hybrid analytical modeling --- 2D steady-state models --- multiphase induction machine --- reduced order --- rotor cage --- torque pulsations --- multi-phase --- segmentation --- synchronous machines --- thermal equivalence circuit --- Voronoï tessellation --- winding heads --- nodal method --- thermal resistances --- n/a --- Maxwell-Fourier method --- Voronoï tessellation

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This book, which is a reprint of articles published in the Special Issue "Advances in Hydrogen Energy" in Energies, seeks to contribute to disseminating the most recent advancements in the field of hydrogen energy. It does so by presenting scientific works from around the world covering both modeling and experimental analysis. The focus is placed on research covering all aspects of the hydrogen energy, from production to storage and final use, including the development of other easy to transport and versatile hydrogen-based energy carriers via the power-to-x (PtX) route, such as ammonia and methanol.Hydrogen energy research and development has attracted growing attention as one of the key solutions for clean future energy systems. In order to reduce greenhouse gas emissions, governments across the world are developing ambitious policies to support hydrogen technology, and an increasing level of funding has been allocated for projects of research, development, and demonstration of these technologies. At the same time, the private sector is capitalizing on the opportunity with larger investments in hydrogen technology solutions.While intense research activities have been dedicated to this field, several issues require further research prior to achieving full commercialization of hydrogen technology solutions. This book addresses some of these issues by presenting detailed models to optimize design strategies and operating conditions for the entire hydrogen value chain, covering production via electrolysis, storage and use in different types of fuel cells and in different forms of energy carriers.

Technology: general issues --- methanol steam reforming --- hydrogen production --- exhaust waste heat --- rib microreactor --- air-cooled proton exchange membrane fuel cells --- adiabatic fuel cell temperature --- thermodynamic analysis of proton exchange membrane fuel cells --- ammonia --- hydrogen --- production --- storage --- utilization --- CO2 free --- hydrogen storage --- hydrogen compression --- non-mechanical compressors --- electrochemical compressors --- activated carbons --- computational analysis --- high-pressure methanol steam reformer --- phase change heat transfer --- high pressure steam condensation --- high temperature PEM --- fuel cell --- electro-osmotic drag --- polymer electrolyte membrane --- proton exchange membrane fuel cells --- proton exchange membrane electrolyzer cells --- membrane water transport --- elementary reactions steps --- rate-determining step --- solid oxide electrolysis cell --- multi-physics --- optimal rib/pitch ratio --- parameters sensitivity --- analytical expression --- SOFC --- system --- model --- stack test --- hydrogen systems --- cryogenics --- vortex tubes --- computational fluid dynamics --- low melting metal --- Al-based alloy --- metal smelting --- fuel cells --- hydrogen hybrid energy system --- thermography --- CFD modeling --- heat transfer --- optimization --- PEM --- fault --- diagnosis --- electrochemical impedance spectroscopy --- distribution of relaxation times --- reformate --- proton exchange membrane fuel cell --- gas diffusion layer --- microscopic porous layer --- fracture --- two phase flow

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book, which is a reprint of articles published in the Special Issue "Advances in Hydrogen Energy" in Energies, seeks to contribute to disseminating the most recent advancements in the field of hydrogen energy. It does so by presenting scientific works from around the world covering both modeling and experimental analysis. The focus is placed on research covering all aspects of the hydrogen energy, from production to storage and final use, including the development of other easy to transport and versatile hydrogen-based energy carriers via the power-to-x (PtX) route, such as ammonia and methanol.Hydrogen energy research and development has attracted growing attention as one of the key solutions for clean future energy systems. In order to reduce greenhouse gas emissions, governments across the world are developing ambitious policies to support hydrogen technology, and an increasing level of funding has been allocated for projects of research, development, and demonstration of these technologies. At the same time, the private sector is capitalizing on the opportunity with larger investments in hydrogen technology solutions.While intense research activities have been dedicated to this field, several issues require further research prior to achieving full commercialization of hydrogen technology solutions. This book addresses some of these issues by presenting detailed models to optimize design strategies and operating conditions for the entire hydrogen value chain, covering production via electrolysis, storage and use in different types of fuel cells and in different forms of energy carriers.

Technology: general issues --- methanol steam reforming --- hydrogen production --- exhaust waste heat --- rib microreactor --- air-cooled proton exchange membrane fuel cells --- adiabatic fuel cell temperature --- thermodynamic analysis of proton exchange membrane fuel cells --- ammonia --- hydrogen --- production --- storage --- utilization --- CO2 free --- hydrogen storage --- hydrogen compression --- non-mechanical compressors --- electrochemical compressors --- activated carbons --- computational analysis --- high-pressure methanol steam reformer --- phase change heat transfer --- high pressure steam condensation --- high temperature PEM --- fuel cell --- electro-osmotic drag --- polymer electrolyte membrane --- proton exchange membrane fuel cells --- proton exchange membrane electrolyzer cells --- membrane water transport --- elementary reactions steps --- rate-determining step --- solid oxide electrolysis cell --- multi-physics --- optimal rib/pitch ratio --- parameters sensitivity --- analytical expression --- SOFC --- system --- model --- stack test --- hydrogen systems --- cryogenics --- vortex tubes --- computational fluid dynamics --- low melting metal --- Al-based alloy --- metal smelting --- fuel cells --- hydrogen hybrid energy system --- thermography --- CFD modeling --- heat transfer --- optimization --- PEM --- fault --- diagnosis --- electrochemical impedance spectroscopy --- distribution of relaxation times --- reformate --- proton exchange membrane fuel cell --- gas diffusion layer --- microscopic porous layer --- fracture --- two phase flow