1.0planet forward//www.getitdoneaz.comsustainability at penn state//www.getitdoneaz.com/author/sustainpsu/ rich600338<blockquote class="wp-embedded-content" data-secret="6djecdldsx"><a href="//www.getitdoneaz.com/story/low-grade-waste-heat-regenerates-ammonia-battery/">low-grade waste heat regenerates ammonia battery</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="//www.getitdoneaz.com/story/low-grade-waste-heat-regenerates-ammonia-battery/embed/#?secret=6djecdldsx" width="600" height="338" title="“low-grade waste heat regenerates ammonia battery” — planet forward" data-secret="6djecdldsx" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![cdata[ */ /*! this file is auto-generated */ !function(d,l){"use strict";l.queryselector&&d.addeventlistener&&"undefined"!=typeof url&&(d.wp=d.wp||{},d.wp.receiveembedmessage||(d.wp.receiveembedmessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-za-z0-9]/.test(t.secret)){for(var s,r,n,a=l.queryselectorall('iframe[data-secret="'+t.secret+'"]'),o=l.queryselectorall('blockquote[data-secret="'+t.secret+'"]'),c=new regexp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentwindow&&(s.removeattribute("style"),"height"===t.message?(1e3<(r=parseint(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new url(s.getattribute("src")),n=new url(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeelement===s&&(d.top.location.href=t.value))}},d.addeventlistener("message",d.wp.receiveembedmessage,!1),l.addeventlistener("domcontentloaded",function(){for(var e,t,s=l.queryselectorall("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getattribute("data-secret"))||(t=math.random().tostring(36).substring(2,12),e.src+="#?secret="+t,e.setattribute("data-secret",t)),e.contentwindow.postmessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> an efficient method to harvest low-grade waste heat as electricity may be possible using reversible ammonia batteries, according to penn state engineers. “the use of waste heat for power production would allow additional electricity generation without any added consumption of fossil fuels,” said bruce e. logan, evan pugh professor and kappe professor of environmental engineering. “thermally regenerative...