/technologies/power-management/b/alt-energy-blog/posts/heat-waste-transforms-into-electricity-with-new-breakthroughResearchers at Northwestern University have placed nanocrystals of rock salt into lead telluride, creating a material that can harness electricity from heat-generating items such as vehicle exhaust systems, industrial processes and equipment an...en-USTelligent Community 12https://community.element14.com/technologies/power-management/b/alt-energy-blog/posts/heat-waste-transforms-into-electricity-with-new-breakthroughThu, 20 Jan 2011 00:48:30 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:adc0d7a0-1757-4d22-9f3e-2994cec853acawneil0<p>This was reported a while ago: <a class="jive-link-external-small" href="http://www.eetimes.com/electronics-news/4211663/Thermoelectrics-could-harvest-car-exhaust-heat" rel="nofollow ugc noopener" target="_blank">http://www.eetimes.com/electronics-news/4211663/Thermoelectrics-could-harvest-car-exhaust-heat</a></p><p>&nbsp;</p><p>As one of the comments there says, how much heat can actually be &quot;harvested&quot; from the exhaust before it starts impeding the efficiency of the engine and/or exhaust system?</p><p>&nbsp;</p><p>Surely, an obvious place from which to harvest heat energy is the engine&#39;s cooling system - which is specifically trying to get rid of heat?!</p><p>&nbsp;</p><p>Trouble is, the temperature gradients there aren&#39;t so high...</p><img src="https://community.element14.com/aggbug?PostID=12210&AppID=68&AppType=Weblog&ContentType=0" width="1" height="1">