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	<title>Concepts and Gadgets&#187; motor lunar</title>
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		<title>Noul motor de la Nasa pentru calatorii in spatiu care face gheata la 2760 grade celsius</title>
		<link>http://www.concepte.info/noul-motor-de-la-nasa-pentru-calatorii-in-spatiu-care-face-gheata-la-2760-grade-celsius.html</link>
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		<pubDate>Thu, 29 Jan 2009 06:03:16 +0000</pubDate>
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				<category><![CDATA[Concepte si Gadgeturi in limba romana]]></category>
		<category><![CDATA[Common Extensible Cryogenic Engine]]></category>
		<category><![CDATA[motor lunar]]></category>

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		<description><![CDATA[Chiar daca pare incredibil, noul Common Extensible Cryogenic Engine creat de Pratt &#38; Whitney Rocketdyne si NASA pentru aterizarile pe luna genereaza formatiuni de gheata in timp ce arde la o temperatura de 2760 de grade celsiusi. Cum este posibil asa ceva? Motorul CECE se alimenteaza cu oxigen si hidrogen lichid. Toate componentele motorului sunt [...]]]></description>
			<content:encoded><![CDATA[<p><img class="ngg-singlepic ngg-left" src="http://www.concepte.info/wp-content/gallery/acasa/engine-bell.jpg" alt="engine-bell.jpg" />Chiar daca pare incredibil, noul Common Extensible Cryogenic Engine creat de Pratt &amp; Whitney Rocketdyne si NASA pentru aterizarile pe luna genereaza formatiuni de gheata in timp ce arde la o temperatura de 2760 de grade celsiusi. Cum este posibil asa ceva?<br />
Motorul CECE se alimenteaza cu oxigen si hidrogen lichid. Toate componentele motorului sunt racite, in asa fel ca atunci cand iese vapori din combustia oxigenului si hidrgenului si ating marginea motorului criogenic se transforma direct in gheata. Arhitectura motorului permite trecerea delicata de la nivele foarte inalte (a fost testat la 108% din capacitatea sa) pana la nivele foarte scazute, de 8%.</p>
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