A Modern Representation of the Flow of Electromagnetic Power: The Flow of Electromagnetic Power and Energy Using the Poynting’s Vector and a Generalized Poynting’s Theorem - Couverture souple

Hsu, Hsin-I

 
9783847348023: A Modern Representation of the Flow of Electromagnetic Power: The Flow of Electromagnetic Power and Energy Using the Poynting’s Vector and a Generalized Poynting’s Theorem
Couverture souple
ISBN 10 : 3847348027 ISBN 13 : 9783847348023
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

A comprehensive and rigorous description of instantaneous balance of electromagnetic power defined as the derivative of energy with respect to time is offered by the Poynting’s theorem. Such theorem is expressed as the sum of a series of volume integrals representing the volume densities of densities of different components of electromagnetic power and the power flow through the general surface surrounding the entire domain in which the Poynting’s vector expresses the instantaneous power leaving the domain (the positive normal is the outward normal to the enclosing surface). For the moving points (rotors) involved in electromechanical energy conversion, the surface of integration is driven together with them and ε and μ remain substantially constant. Then the balance of energy (and power) can be written at each infinitesimal time interval for the electromagnetic energy in which case the elementary mechanical work is produced by mechanical forces of electromagnetic origin. The thermal energy accounts for the Joule (and hysteresis) losses in the system. A treatment of the flow of electromagnetic energy is given for a complete of illustrative relationship in time and frequency domain.

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Présentation de l'éditeur

A comprehensive and rigorous description of instantaneous balance of electromagnetic power defined as the derivative of energy with respect to time is offered by the Poynting’s theorem. Such theorem is expressed as the sum of a series of volume integrals representing the volume densities of densities of different components of electromagnetic power and the power flow through the general surface surrounding the entire domain in which the Poynting’s vector expresses the instantaneous power leaving the domain (the positive normal is the outward normal to the enclosing surface). For the moving points (rotors) involved in electromechanical energy conversion, the surface of integration is driven together with them and ε and μ remain substantially constant. Then the balance of energy (and power) can be written at each infinitesimal time interval for the electromagnetic energy in which case the elementary mechanical work is produced by mechanical forces of electromagnetic origin. The thermal energy accounts for the Joule (and hysteresis) losses in the system. A treatment of the flow of electromagnetic energy is given for a complete of illustrative relationship in time and frequency domain.

Biographie de l'auteur

Hsin-I Hsu has received her BS degree and Program for Photonics Technologies certification in 2008 from National Taiwan University. She also has obtained her MSE in Electrical and Computer Engineering from University of Texas at Austin in 2011. Since then, she has worked as a patent Engineer at Raj Abhyanker P.C..

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3847348027
ISBN 13 
9783847348023
Reliure
Broché
Nombre de pages
128
Coordonnées du fabricant
non disponible
Personne responsable
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