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1000 tulosta hakusanalla Fouad Chafaa

Generation, Conversion, Transmission and Storing of Energy

Generation, Conversion, Transmission and Storing of Energy

Fouad A S Soliman; Safaa M R El-Ghanam; Karima A Mahmoud

LAP Lambert Academic Publishing
2020
pokkari
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The SI unit of energy is the joule, which is the energy transferred to an object by the work of moving it a distance of 1.0 metre against a force of 1.0 newton. Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object's position in a force field (gravitational, electric or magnetic), the elastic energy stored by stretching solid objects, the chemical energy released when a fuel burns, the radiant energy carried by light, and the thermal energy due to an object's temperature.Living organisms require energy to stay alive, such as the energy humans get from food. Human civilization requires energy to function, which it gets from energy resources such as fossil fuels, nuclear fuel, or renewable energy.
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Composites polymères

Composites polymères

Fouad Soliman; Karima Mahmoud

International Book Market Service Ltd
2025
pokkari
De nombreuses tudes d taill es ont t men es sur les micro/nanocomposites polym res utilis s dans les applications haute tension. L' tude est bas e sur un grand nombre de travaux de recherche pr c demment publi s dans ce domaine. L'accent est mis en particulier sur la relation structure-propri t des mat riaux composites utilis s dans l'ing nierie nerg tique, en exploitant la th orie fondamentale ainsi que les mod les num riques/analytiques et l'influence de la conception des mat riaux sur les propri t s lectriques, m caniques et thermiques. Outre la description du d veloppement scientifique des caract ristiques lectriques des micro/nano-composites souhait es dans l'ing nierie de l' nergie, l' tude se concentre principalement sur les propri t s lectriques des mat riaux isolants, en particulier le poly thyl ne r ticul (XLPE) et les r sines poxy, non remplis et remplis de diff rents types de charges. Les micro/nanocomposites polym res base de XLPE et de r sines poxy sont g n ralement utilis s comme syst mes isolants pour les applications haute tension, telles que: les c bles, les g n rateurs, les moteurs, les transformateurs de type sec en r sine coul e, etc.
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Compositi polimerici

Compositi polimerici

Fouad Soliman; Karima Mahmoud

International Book Market Service Ltd
2025
pokkari
Sono stati condotti molti studi dettagliati sui micro/nanocompositi polimerici utilizzati nelle applicazioni ad alta tensione. Lo studio si basa su numerosi lavori di ricerca pubblicati in precedenza in questo campo. L'attenzione si concentra in particolare sulla relazione struttura-propriet dei materiali compositi utilizzati nell'ingegneria dell'energia, sfruttando la teoria fondamentale e i modelli numerici/analitici e l'influenza della progettazione dei materiali sulle propriet elettriche, meccaniche e termiche. Oltre a descrivere lo sviluppo scientifico delle caratteristiche elettriche dei micro/nano-compositi desiderati nell'ingegneria dell'energia, lo studio si concentra principalmente sulle propriet elettriche dei materiali isolanti, in particolare del polietilene reticolato (XLPE) e delle resine epossidiche, non caricate e caricate con diversi tipi di riempitivo. I micro/nanocompositi polimerici a base di XLPE e resine epossidiche sono solitamente utilizzati come sistemi isolanti per applicazioni ad alta tensione, quali: cavi, generatori, motori, trasformatori a secco in resina, ecc.
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Solar Roadways

Solar Roadways

Fouad A S Soliman; Hamed I E Mira; Karima A Mahmoud

Lap Lambert Academic Publishing
2020
pokkari
Experimental projects of solar roadways have multiplied all over the world: the potentials are endless, but many doubts remain. Think of the miles and miles of roads all over the world, what if these roads could generate energy? As a result, and according to various studies, about 0.2- 0.5 % of the Earth's surface is covered by roads. This percentage is expected to increase by 60% by 2050. It is an impressive amount of land, simply taken from nature, generating a strongenvironmental impact. But how can this trend be transformed into a positive impact for the environment? Recent technological innovations regarding the latest generation of photovoltaic panels, can now withstand heavy vehicle loading with a hyper-resistant structure. Use of these breakthrough solar panels could transform our traditional asphalt roads into huge power generators.
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