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	<title>Comments on: Super Efficient Jet Engine</title>
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	<link>http://cleantechnica.com/2013/03/12/super-efficient-jet-engine/</link>
	<description>Clean Tech News &#38; Views: Solar Energy News. Wind Energy News. EV News. &#38; More.</description>
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		<title>By: Ronald Brakels</title>
		<link>http://cleantechnica.com/2013/03/12/super-efficient-jet-engine/#comment-155133</link>
		<dc:creator><![CDATA[Ronald Brakels]]></dc:creator>
		<pubDate>Mon, 18 Mar 2013 01:00:00 +0000</pubDate>
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		<description><![CDATA[Jet engines compromise efficiency for power because they have to be lightweight.  Gas turbines don&#039;t need to wizz around above our heads and so don&#039;t have that problem.  Improved materials could help but shouldn&#039;t make much of a change to the overall efficiency of combined cycle gas turbines, which is where most natural gas gets burnt.  It should be more useful for single cycle turbines and turbines that need to be lightweight, eg. for use in ships, cars, and trucks.]]></description>
		<content:encoded><![CDATA[<p>Jet engines compromise efficiency for power because they have to be lightweight.  Gas turbines don&#8217;t need to wizz around above our heads and so don&#8217;t have that problem.  Improved materials could help but shouldn&#8217;t make much of a change to the overall efficiency of combined cycle gas turbines, which is where most natural gas gets burnt.  It should be more useful for single cycle turbines and turbines that need to be lightweight, eg. for use in ships, cars, and trucks.</p>
]]></content:encoded>
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	<item>
		<title>By: agelbert</title>
		<link>http://cleantechnica.com/2013/03/12/super-efficient-jet-engine/#comment-154616</link>
		<dc:creator><![CDATA[agelbert]]></dc:creator>
		<pubDate>Wed, 13 Mar 2013 17:09:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=49397#comment-154616</guid>
		<description><![CDATA[Just what we need: more heat... :&gt;(]]></description>
		<content:encoded><![CDATA[<p>Just what we need: more heat&#8230; :&gt;(</p>
]]></content:encoded>
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		<title>By: dynamo.joe</title>
		<link>http://cleantechnica.com/2013/03/12/super-efficient-jet-engine/#comment-154557</link>
		<dc:creator><![CDATA[dynamo.joe]]></dc:creator>
		<pubDate>Wed, 13 Mar 2013 10:40:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=49397#comment-154557</guid>
		<description><![CDATA[Cool, does this mean natural gas power turbines are about to get a 25% boost?

 

Maybe the road to grid parity isn&#039;t going to be as smooth as some are predicting.]]></description>
		<content:encoded><![CDATA[<p>Cool, does this mean natural gas power turbines are about to get a 25% boost?</p>
<p>Maybe the road to grid parity isn&#8217;t going to be as smooth as some are predicting.</p>
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