Mixent said on Tue, 13 Apr 2010 14:58:41 -0700 [snip] which BTW doesn't mention the Ca-48 reaction Ca-48 => Ti-48 + 4.27 MeV (Ca-48 is 0.18% of natural Ca) which averages to 7.7 keV / atom of Ca. Which would make old concrete or limestone a great fuel source, about 1000 times better than coal. ;) Perhaps someone should try LENR using Ca(OH)2 iso LiOH? ;) There is almost as much Ca-48 in the crust as there is Zr (all isotopes combined; Ca is much more abundant than Zr). BTW the single beta decay of Ca-48 to Sc-48 is also energetically possible (278 keV). [/snip]
Mixent, I have been waiting for someone to mention calcium or limestone. Calcium is a pourous alkaline earth metal and conductive making it capable of forming Casimir geometry, I have a bag of limestone powder in my garage right next to a cup of carbon black I got from a paint store both waiting for me to make a hydrogen only generator because I don't want my HHO kit to oxidize the catalyst. I think these powders have the potential to produce Casimir geometry both in their grain boundary as pores like a skeletal catalyst and also between grains as they pack together leaving gaps and crevices of perhaps lesser geometry like the Haisch Model prototype (.1u holes). These lesser geometries are very interesting like the Arata nano materials because the gas doesn't have to leach out slowly from a lattice or cavity but instead can be circulated endlessly to release heat at a lower rate over a larger area. I think the heating effect in cement may not be all ash chemistry - if the oxidant was removed by displacing oxygen with an inert gas and instead circulating hydrogen through the mixture of inert gas and calcium we might have a candidate for ashless chemistry passing through the Casimir geometry. It would not simulate the insulation layers that Haisch and Moddel envision in their prototype but there is a zero manufacturing cost trade off for just taking whatever the natural change in geometry you get from self packing of the particles.