Re: [Vo]:New spongelike structure converts solar energy into steam
I wonder is this the same phenonomena as that described by Halas's group at Rice Univ a couple years back?. They simply focused sunlight onto carbon black in water and saw water boiling directly off at apparently low temp. I briefly reproduced her experiment by a fresnel lens focused on a little pill bottle with carbon black and it indeed does generate steam locally very quickly and vigourously. They planned to use Bill Gates money to make medical distillers in Africa if I recall. hmm. ken On Sun, Jul 27, 2014 at 2:01 PM, John Berry berry.joh...@gmail.com wrote: Surely it would make a steam punk fans day. On Mon, Jul 28, 2014 at 7:49 AM, Axil Axil janap...@gmail.com wrote: Can this system support supercritical steam generation. How hot are the hot spots? http://en.wikipedia.org/wiki/Supercritical_steam_generator On Sun, Jul 27, 2014 at 2:29 PM, Frank roarty fr...@roarty.biz wrote: http://www.sciencedaily.com/releases/2014/07/140724213957.htm *Source:* Massachusetts Institute of Technology *Summary:* A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated.
Re: [Vo]:New spongelike structure converts solar energy into steam
Ken, Sounds like an improvement upon the former since the spongelike geometry syphons water toward the surface but since the graphite is “floating” I assume it turns to steam before the liquid water has a chance to conduct too much heat down below the surface and stop the steam production. It seems like a minor change but the combination of closed and open cells seems to be a win-win scenario to insulate, float and syphon. Fran From: Ken Deboer [mailto:barlaz...@gmail.com] Sent: Monday, July 28, 2014 2:10 PM To: vortex-l@eskimo.com Subject: EXTERNAL: Re: [Vo]:New spongelike structure converts solar energy into steam I wonder is this the same phenonomena as that described by Halas's group at Rice Univ a couple years back?. They simply focused sunlight onto carbon black in water and saw water boiling directly off at apparently low temp. I briefly reproduced her experiment by a fresnel lens focused on a little pill bottle with carbon black and it indeed does generate steam locally very quickly and vigourously. They planned to use Bill Gates money to make medical distillers in Africa if I recall. hmm. ken On Sun, Jul 27, 2014 at 2:01 PM, John Berry berry.joh...@gmail.commailto:berry.joh...@gmail.com wrote: Surely it would make a steam punk fans day. On Mon, Jul 28, 2014 at 7:49 AM, Axil Axil janap...@gmail.commailto:janap...@gmail.com wrote: Can this system support supercritical steam generation. How hot are the hot spots? http://en.wikipedia.org/wiki/Supercritical_steam_generator On Sun, Jul 27, 2014 at 2:29 PM, Frank roarty fr...@roarty.bizmailto:fr...@roarty.biz wrote: http://www.sciencedaily.com/releases/2014/07/140724213957.htm Source: Massachusetts Institute of Technology Summary: A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated.
Re: [Vo]:New spongelike structure converts solar energy into steam
Can this system support supercritical steam generation. How hot are the hot spots? http://en.wikipedia.org/wiki/Supercritical_steam_generator On Sun, Jul 27, 2014 at 2:29 PM, Frank roarty fr...@roarty.biz wrote: http://www.sciencedaily.com/releases/2014/07/140724213957.htm *Source:* Massachusetts Institute of Technology *Summary:* A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated.
Re: [Vo]:New spongelike structure converts solar energy into steam
Surely it would make a steam punk fans day. On Mon, Jul 28, 2014 at 7:49 AM, Axil Axil janap...@gmail.com wrote: Can this system support supercritical steam generation. How hot are the hot spots? http://en.wikipedia.org/wiki/Supercritical_steam_generator On Sun, Jul 27, 2014 at 2:29 PM, Frank roarty fr...@roarty.biz wrote: http://www.sciencedaily.com/releases/2014/07/140724213957.htm *Source:* Massachusetts Institute of Technology *Summary:* A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated.
