What is Zeolite??... Is Zeolite those white crystals people put in their underarms to cure underarm body odor... Also since the working fluid is water which freezes from top to bottom.... wont the frozen ice on the top prevent further vaporization... so that only some percent of the water is vaporized.. preventing further cooling.. "James Newtons Massmind" wrote in message news:02ce01c7d5ee$d6f3e7b0$1100a8c0@SONYGRT270PB... >> >> I have seen a "closed loop" refrigerator similar to this in >> rural Nicaragua. Here's what I remember about that one: the >> owner placed it outside in the sun until the ammonia was >> fully compressed (heat from the sun caused the ammonia to be >> forced into liquid form into a pool by a one-way valve). When >> it was then put into the "icebox" and a valve released, it >> made ice all night long as the ammonia evaporated. Except for >> the fuss of dealing with the "cooling equipment", it worked >> as good as any modern refrigerator. I remember it as being >> made of glass and tubes, but it might have been stainless >> steel here and there. >> >> I have a client who is incredibly interested in solar >> products. He is presently experimenting with "swamp" (water >> evaporative) coolers. He has reduced the temperature of my >> office from 110F to 75F by use of a proprietary means of >> forcing the evaporation of water by breaking the water into a >> fine mist. >> >> This "swamp cooler" and the Nicaraguan refrigerator work in a >> similar way. > > > Have you seen our heard of Zeolite adsorption (not misspelled) cooling? > > http://techref.massmind.org/techref/other/zeolitefridg.htm > > Check the links at the bottom of the page. > > --- > James Newton, massmind.org Knowledge Archiver > james@massmind.org 1-619-652-0593 fax:1-208-279-8767 > http://www.massmind.org Saving what YOU know. > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist