Energia nuclear.ppsx
•Descargar como PPTX, PDF•
2 recomendaciones•1,570 vistas
Energia Nuclear
Recomendados
Más contenido relacionado
La actualidad más candente
La actualidad más candente (19)
Similar a Energia nuclear.ppsx
Similar a Energia nuclear.ppsx (20)
Último
Último (20)
Energia nuclear.ppsx
- 3. O Que é Energia Nuclear A energia nuclear é a energia liberada durante a fissão ou fusão dos núcleos atômicos. As quantidades de energia que podem ser obtidas mediante processos nucleares superam em muitas as que se pode obter mediante processos químicos, que só utilizam as regiões externas do átomo.
- 4. Utilização da Energia Nuclear Servem na utilização de bombas nucleares, Pode substituir fontes de energia e também substituir alguns combustíveis. A utilização da energia nuclear vem crescendo a cada dia. A energia nuclear é uma das alternativas menos poluentes, permite adquirir muita energia em um espaço pequeno e instalações de usinas perto dos centros consumidores, reduzindo o custo de distribuição de energia.
- 5. Países que utilizam Energia Nuclear Países europeus são os que mais utilizam energia nuclear. Atualmente os Estados Unidos lideram a produção de energia nuclear, porém os países mais dependentes da energia nuclear são França, Suécia, Finlândia e Bélgica. Na França, cerca de 80% de sua eletricidade é oriunda de centrais atômicas.
- 6. Conseqüências da Energia Nuclear A tecnologia nuclear é perigosa, já causou acidentes graves como o de Three Mile Island (EUA) e Chernobil (Ucrânia), com milhares de mortes e enfermidades decorrentes desses acidentes, além da perda de grandes áreas. A utilização desse tipo de tecnologia continua apresentando graves riscos para toda a humanidade.
- 7. Energia nuclear no Brasil A procura da tecnologia nuclear no Brasil começou na década de 50, com Almirante Álvaro Alberto, que entre outros feitos criou o Conselho Nacional de Pesquisa, em 1951, e que importou duas ultra-centrifugadoras da Alemanha para o enriquecimento do urânio, em 1953. A decisão da implementação de uma usina nuclear no Brasil aconteceu em 1969. E que em nenhum momento se pensou numa fonte para substituir a energia hidráulica, da mesma maneira que também após alguns anos, ficou bem claro que os objetivos não eram simplesmente o domínio de uma nova tecnologia.
- 8. Um vídeo sobre o futuro da Energia nuclear no Brasil
- 9. Vantagens Da Energia Nuclear • Não contribui para o aumento do efeito estufa, pois não polui o ar com gases. • Para sua instalação, não requer grandes áreas. • Não depende de condição climática. • Praticamente não provoca impactos na biosfera – quando provoca , é muito pouco. • É a fonte mais concentrada de geração de energia, ofertando grande quantidade de combustível. • Gera pouca quantidade de resíduos radioativos. • Não necessita de armazenamento da energia produzida em baterias. • Risco menor de transporte em relação a outras fontes de energia, tipo gás, óleos para termoelétricas, etc.
- 10. Desvantagens Da Energia Nuclear • Armazenamento específico para o resíduo nuclear – bem protegido e isolado. • Isolar a central após seu encerramento. • Durante muitos anos, os resíduos produzidos emitirão radiação. • É cara comparada às outras fontes de energia. • Riscos elevados de acidentes nucleares, podendo inclusive, interferir nos ecossistemas.
Notas del editor
- Rounded corner rectangle tabs with inset pictures(Advanced)To reproduce the top rectangle (olive-green, “label one”) with text effects on this slide, do the following:On the Home tab, in the Slides group, click Layout, and then click Blank.On the Home tab, in the Drawing group, click Shapes, and then under Rectangles, click Rounded Diagonal Corner Rectangle (ninth option from the left). On the slide, drag to draw a rectangle.On the Home tab, in the bottom right corner of the Drawing group, click the Format Shape dialog box launcher. In the Format Shape dialog box, click Fill in the left pane, select Gradient fill in the right pane, and then do the following:In the Type list, select Linear.Click the button next to Direction, and then click Linear Down (first row, second option from the left).Under Gradient stops, click Add or Remove until two stops appear in the drop-down list.Also under Gradient stops, customize the gradient stops that you added as follows:Select Stop 1 from the list, and then do the following:In the Stop position box, enter 32%.Click the button next to Color, and then under Theme Colors click White, Background 1 (first row, first option from the left).Select Stop 2 from the list, and then do the following:In the Stop position box, enter 100%.Click the button next to Color, and then under Theme Colors click Olive Green, Accent 3, Lighter 60% (third row, seventh option from the left).Also in the Format Shape dialog box, click Line Color in the left pane, select Gradient line in the right pane, and then do the following:In the Type list, select Linear.Click the button next to Direction, and then click Linear Up (second row, second option from the left). Under Gradient stops, click Add or Remove until two stops appear in the drop-down list.Also under Gradient stops, customize the gradient stops that you added as follows:Select Stop 1 from the list, and then do the following:In the Stop position box, enter 0%.Click the button next to Color, and then under Theme Colors click White, Background 1 (first row, first option from the left).Select Stop 2 from the list, and then do the following:In the Stop position box, enter 100%.Click the button next to Color, and then under Theme Colors click White, Background 1, Darker 25% (fourth row, first option from the left).Also in the Format Shape dialog box, click Line Style in the left pane. In the Line Style pane, in the Width box, enter 1 pt. On the Home tab, in the Drawing group, click Shape Effects, point to Glow, and then do the following:Under Glow Variations, select any option in the first row (5 pt glow options). Point to More Glow Colors, and then under Theme Colors click White, Background 1, Darker 25% (fourth row, first option from the left). On the slide, right-click the rectangle and then click Edit Text. Enter text in the text box and select the text. On the Home tab, in the Font group, select Gill Sans MT from the Font list and then select 24 from the Font Size list.On the Home tab, in the Paragraph group, click Align Text Left to align the text left within the rectangle.Under Drawing Tools, on the Format tab, in the WordArt Styles group, click the arrow next to Text Fill, click More Fill Colors, and then in the Colors dialog box, on the Custom tab, enter values for Red: 127, Green: 127, and Blue: 127.Select the rectangle. On the Home tab, in the bottom-right corner of the Drawing group, click the Format Shapes dialog box launcher. In the Format Shapes dialog box, click Text Box in the left pane. In the right pane, under Internal margin, enter 1” in the Left box to increase the left margin in the rectangle to accommodate the embossed picture. Under Drawing Tools, on the Format tab, in the Size group, do the following:In the Shape Height box, enter 0.92”.In the Shape Width box, enter 4.5”.To reproduce the olive-green embossed picture for the top rectangle on this slide, do the following:On the Home tab, in the Drawing group, click Shapes, and then under Rectangles, click Rounded Diagonal Corner Rectangle (ninth option from the left). On the slide, drag to draw a rectangle.On the Home tab, in the bottom right corner of the Drawing group, click the Format Shape dialog box launcher. In the Format Shape dialog box, click Fill in the left pane, select Picture or texture fill, and then under Insert from click File. In the Insert Picture dialog box, select a picture and then click Insert. Also in the Format Shape dialog box, click Line Color in the left pane. In the Line Color pane, select No line. Also in the Format Shape dialog box, click Picture in the left pane, click the button next to Recolor, and then under Light Variations click Accent color 3 Light (fourth option from the left).Also in the Format Shape dialog box, click Shadow in the left pane, and then do the following in the right pane:Click the button next to Preset, and then under Inner click Inside Diagonal Top Left (first row, first option from the left).In the Transparency box, enter 65%. Under Picture Tools, on the Format tab, in the bottom right corner of the Size group, click the Size and Position dialog box launcher. In the Size and Position dialog box, on the Size tab, do the following:Under Scale, select the Lock aspect ratio check box.Under Size and rotate, in the Height box, enter 0.75”. (Under Size and rotate, in the Width box, 0.75” will appear automatically.)Drag the picture onto the left side of the rectangle. Press and hold CTRL and select the picture and the rectangle. On the Home tab, in the Drawing group, click Arrange, point to Align, and then click Align Middle. To reproduce the other shapes on this slide, do the following:Press and hold CTRL and select the picture and the rectangle. On the Home tab, in the Drawing group, click Arrange, and then click Group. On the Home tab, in the Clipboard group, click the arrow under Paste, and then click Duplicate. Repeat the process until there is a total of four groups of shapes.Drag the groups so that they are distributed vertically on the slide. Press and hold CTRL and select all four groups. On the Home tab, in the Drawing group, click Arrange, and then do the following:Point to Align, and then click Align Center. Point to Align, and then click Distribute Vertically. Click Ungroup. To change the color and text for the duplicate rectangles (second, third, and fourth from the top), do the following:Select the rectangle that you would like to recolor.Under Drawing Tools, on the Format tab, in the Shape Styles group, click the arrow next to Shape Fill, point to Gradient, and then click More Gradients.In the Format Shape dialog box, click Fill in the left pane, select Gradient fill in the right pane, and then do the following:For the second rectangle from the top, under Gradient stops, select Stop 2 from the drop-down list, click the button next to Color, and then under Theme Colors click Orange, Accent 6, Lighter 60% (third row, tenth option from the left). For the third rectangle from the top, under Gradient stops, select Stop 2 from the drop-down list, click the button next to Color, and then under Theme Colors click Aqua, Accent 5, Lighter 60% (third row, ninth option from the left).For the fourth rectangle from the top, under Gradient stops, select Stop 2 from the drop-down list, click the button next to Color, and then under Theme Colors click Blue, Accent 1, Lighter 60% (third row, fifth option from the left).To change the text on the duplicate rectangles, click in each text box and edit the text. To change the picture on the duplicate rectangles (second, third, and fourth from the top), do the following:Right-click the second picture from the top, and then click Format Picture. In the Format Picture dialog box, click Fill in the left pane, and then under Insert from click File. In the Insert Picture dialog box, select a picture, and then click Insert.Repeat the process for the third and fourth rectangles from the top. To change the color for the duplicate pictures (second, third, and fourth from the top), do the following:Select the picture that you would like to recolor.Under Picture Tools, on the Format tab, in the Adjust group, click the arrow next to Recolor, and then do the following:For the second picture from the top, under Light Variations, click Accent color 6 Light (seventh option from the left).For the third picture from the top, under Light Variations, click Accent color 5 Light (sixth option from the left).For the fourth picture from the top, under Light Variations, click Accent color 1 Light (second option from the left).To reproduce the background on this slide, do the following:Right-click the slide background area, and then click Format Background. In the Format Background dialog box, click Fill in the left pane, select Gradient fill in the right pane, and then do the following:In the Type list, select Radial.Click the button next to Direction, and then click From Center (third option from the left).Under Gradient stops, click Add or Remove until two stops appear in the drop-down list.Also under Gradient stops, customize the gradient stops that you added as follows:Select Stop 1 from the list, and then do the following:In the Stop position box, enter 0%.Click the button next to Color, and then under Theme Colors click White, Background 1 (first row, first option from the left).Select Stop 2 from the list, and then do the following:In the Stop position box, enter 100%.Click the button next to Color, and then under Theme Colors click White, Background 1, Darker 15% (third row, first option from the left).