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	<title>Optimist &#187; energie verde</title>
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	<link>http://optimist.ro</link>
	<description>Fii optimist, maine va fi mai bine!</description>
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		<title>PRT &#8211; Personal Rapid Transit</title>
		<link>http://optimist.ro/2012/01/prt-personal-rapid-transit/</link>
		<comments>http://optimist.ro/2012/01/prt-personal-rapid-transit/#comments</comments>
		<pubDate>Thu, 19 Jan 2012 08:28:42 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Energie]]></category>
		<category><![CDATA[energie verde]]></category>
		<category><![CDATA[oras]]></category>
		<category><![CDATA[transport in comun]]></category>

		<guid isPermaLink="false">http://optimist.ro/?p=914</guid>
		<description><![CDATA[Noua forma de transport in comun? Imagine a public transportation system that takes you door to door on demand, like a taxi, but is clean and cheap and doesn’t crowd the streets. That’s the promise of Personal Rapid Transit. In &#8230; <a href="http://optimist.ro/2012/01/prt-personal-rapid-transit/">Citeste continuarea <span class="meta-nav">&#8594;</span></a>]]></description>
			<content:encoded><![CDATA[<p>Noua forma de transport in comun?</p>
<blockquote><p>Imagine a public transportation system that takes you door to door on demand, like a taxi, but is clean and cheap and doesn’t crowd the streets. That’s the promise of Personal Rapid Transit. In a PRT system, a fleet of small, two- to six-person automated cars, running on a dense network of guideways, provides individual nonstop rides between any two stations.<br />
-<a href="http://www.fastcoexist.com/1679156/personal-rapid-transit-is-coming-to-india">http://www.fastcoexist.com/1679156/personal-rapid-transit-is-coming-to-india</a>
</p></blockquote>
<p>Sistemul functioneaza deja la scara redusa in Morgantown (West Virginia), Masdar (Abu Dhabi) sau in aeroportul Heathrow din Londra. Implementarea la scara larga, care sa deserveasca un intreg oras, este pe cale sa devina realitate in orasul indian Amistar (provicia Punjab). Estimarile prevad ca sistemul va fi functional in 2014:<br />
<a href="http://optimist.ro/wp-content/uploads/2012/01/Ultra_amritsar_2-1024x486.jpg" rel="lightbox[914]"><img src="http://optimist.ro/wp-content/uploads/2012/01/Ultra_amritsar_2-1024x486-670x317.jpg" alt="" title="Ultra_amritsar_2-1024x486" width="670" height="317" class="alignnone size-medium wp-image-916" /></a><br />
Sursa imagine: <a href="http://www.ultraglobalprt.com/worlds-largest-urban-prt-system-announced">http://www.ultraglobalprt.com/worlds-largest-urban-prt-system-announced</a></p>
<p><a href="http://optimist.ro/wp-content/uploads/2012/01/prt.jpg" rel="lightbox[914]"><img src="http://optimist.ro/wp-content/uploads/2012/01/prt-670x446.jpg" alt="" title="prt" width="670" height="446" class="alignnone size-medium wp-image-915" /></a><br />
Sursa imagine: <a href="http://transportation.wvu.edu/prt">http://transportation.wvu.edu/prt</a></p>
<p><a href="http://optimist.ro/wp-content/uploads/2012/01/PRT-Heathrow.jpg" rel="lightbox[914]"><img src="http://optimist.ro/wp-content/uploads/2012/01/PRT-Heathrow-670x446.jpg" alt="" title="PRT Heathrow" width="670" height="446" class="alignnone size-medium wp-image-918" /></a><br />
Sursa imagine: <a href="http://www.ultraprt.com/heathrow/">http://www.ultraprt.com/heathrow/</a></p>
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		<item>
		<title>Celulele solare &#8211; energia viitorului</title>
		<link>http://optimist.ro/2008/09/celulele-solare/</link>
		<comments>http://optimist.ro/2008/09/celulele-solare/#comments</comments>
		<pubDate>Mon, 22 Sep 2008 09:16:03 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Energie]]></category>
		<category><![CDATA[Tehnologie]]></category>
		<category><![CDATA[celule solare]]></category>
		<category><![CDATA[energie verde]]></category>
		<category><![CDATA[inventii]]></category>
		<category><![CDATA[locuinta]]></category>
		<category><![CDATA[nano]]></category>
		<category><![CDATA[panouri solare]]></category>
		<category><![CDATA[verde]]></category>

		<guid isPermaLink="false">http://optimist.ro/?p=82</guid>
		<description><![CDATA[Folosite deja la alimentarea calculatoarelor de buzunar, in noile locuinte ca sursa alternativa de energie verde sau in spatiu, celulele/panourile solare devin o prezenta din ce in ce mai familiara. Unii vorbesc chiar de o revolutie solara, si pe buna &#8230; <a href="http://optimist.ro/2008/09/celulele-solare/">Citeste continuarea <span class="meta-nav">&#8594;</span></a>]]></description>
			<content:encoded><![CDATA[<p>Folosite deja la alimentarea calculatoarelor de buzunar, in noile locuinte ca sursa alternativa de energie verde sau in spatiu, celulele/panourile solare devin o prezenta din ce in ce mai <a class="dmax" href="http://dmax.ro/index.php/tag/familie/">familiara</a>. Unii vorbesc chiar de o <strong>revolutie solara</strong>, si pe buna dreptate, din moment ce intr-o zi cu soare, Soarele poate asigura pana la 1000 de Wati pe metru patrat, ceea ce reprezinta mai mult decat suficient pentru o locuinta medie.<br />
<a href="http://optimist.ro/wp-content/uploads/2008/09/casa_panou_solar.jpg" rel="lightbox[82]"><img class="alignnone size-thumbnail wp-image-83" title="casa_panou_solar" src="http://optimist.ro/wp-content/uploads/2008/09/casa_panou_solar-120x120.jpg" alt="" width="120" height="120" /></a><br />
<strong>Cum functioneaza?</strong><br />
<a href="http://dmax.ro/index.php/tag/ingineresti/">Functionarea</a> lor este simpla: un semiconductor (de obicei siliciul) este folosit pentru transformarea fotonilor in electroni, care apoi sunt dirijati pentru a genera curent electric.<span id="more-82"></span><br />
Cantitatea de energie produsa de celulele solare este relativ mica, dar prin gruparea lor in panouri solare si prin instalarea lor in zone insorite, aceasta problema este rezolvata. Pretul lor este relativ mare, dar investitia in panouri solare este una pe termen lung. Atuurile cele mai importante sunt:<br />
-energia produsa este <strong>verde</strong><br />
-energia produsa este <strong>gratis</strong></p>
<p><a href="http://optimist.ro/wp-content/uploads/2008/09/images.jpg" rel="lightbox[82]"><img class="alignnone size-thumbnail wp-image-84" title="images" src="http://optimist.ro/wp-content/uploads/2008/09/images.jpg" alt="" width="120" height="107" /></a></p>
<p><strong>Ce urmeaza?</strong><br />
Recent, un elev de 12 ani a inventat un sistem de nano-tuburi din carbon care cresc randamentul transformarii luminii in electricitate. Noua solutie de <strong>celule solare 3D</strong> absoarbe de 500 de ori mai multa lumina decat celulele solare obisnuite, si de 9 ori mai multa decat solutiile 3D existente. In functie de costurile de productie, aceasta noua solutie ar putea iesi pe piata in curand.</p>
<p>In plus, folosirea <strong>nano-tehnologiei</strong> in procesul de productie al celulelor solare va duce la scaderea substantiala a costurilor de instalare, facand din energia solara una dintre cele mai avantajoase forme de energie terestre.</p>
<p>Surse: <a href="http://science.howstuffworks.com/solar-cell.htm">science.howstuffworks.com</a><br />
<a href="http://news.softpedia.com/news/Little-Wonder-Boy-Discovers-New-Solar-Cell-Type-93760.shtml">news.softpedia.com</a><br />
<a href="http://www.naturalnews.com/023389.html">naturalnews.com</a></p>
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