Brillouin seems to be moving away from the fluidized bed (pellet)
reactor design, to an elegant hot tube built around a vacuum-sputtered
layer of nickel on ceramic. See pg. 36-39 of the recent patent application:
http://patentscope.wipo.int/search/docservicepdf_pct/id00000026903329.pdf
Other interesting details include use of flowing hydrogen as the
heat-exchange fluid, mixed with helium to moderate the reaction.
On 1/14/2015 8:58 PM, Axil Axil wrote:
In the long run, Brillouin’s low energy nuclear reaction technology
will beat out Rossi's Hot cat reactor design. But there needs to be
some design upgrades to the Brilouin's current approach.