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. >>> >>> >>> >> >> >
