http://inhabitat.com/epiphanys-onepuck-charges-your-cell-phone-with-your-morning-coffee/ Green design & eco innovation for a better world Wed, 22 May 2013 16:54:00 +0000 hourly 1 http://wordpress.org/?v=abc http://inhabitat.com/epiphanys-onepuck-charges-your-cell-phone-with-your-morning-coffee/comment-page-1/#comment-495077 baroodandar Mon, 18 Feb 2013 16:51:11 +0000 http://inhabitat.com/?p=484487#comment-495077 I am very happy to hear the modern invention for electronic technology power genration with simple methodology of termodaynamic as well the application of nano technology. I need to advertise in my area how to use the renewable solar energy for power generation which is helpful to protect inviroment pollution and economical as well. I appreciate you interest to work with me as partener and share your information in power energy new invention and in solar , wind , nano technology and others. Baroodandar I am very happy to hear the modern invention for electronic technology power genration with simple methodology of termodaynamic as well the application of nano technology. I need to advertise in my area how to use the renewable solar energy for power generation which is helpful to protect inviroment pollution and economical as well. I appreciate you interest to work with me as partener and share your information in power energy new invention and in solar , wind , nano technology and others. Baroodandar

]]> http://inhabitat.com/epiphanys-onepuck-charges-your-cell-phone-with-your-morning-coffee/comment-page-1/#comment-495062 gregb Mon, 18 Feb 2013 16:24:20 +0000 http://inhabitat.com/?p=484487#comment-495062 Nice idea, but the numbers don't work out (as many in the kickstarter comments section point out). First year thermodynamics, and no amount of clever engineering will avoid the inevitable. Plus, if the cup is only weakly thermally connected to the puck, the efficiency is even worse. For example, a paper coffee cup, or a ceramic cup, maintains an insulating air gap on their bottom surfaces. Which will kill the transfer of energy from the liquid to the stirling engine. Nice idea, but the numbers don’t work out (as many in the kickstarter comments section point out). First year thermodynamics, and no amount of clever engineering will avoid the inevitable. Plus, if the cup is only weakly thermally connected to the puck, the efficiency is even worse. For example, a paper coffee cup, or a ceramic cup, maintains an insulating air gap on their bottom surfaces. Which will kill the transfer of energy from the liquid to the stirling engine.

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