You probably don't need a vacuum as the system normally runs pressurised. After you have replaced the powder pressurise it with hydrogen and then vent it. Repeat this several times and there will be almost no air left in it. If the powder has been processed correctly beforehand then a short exposure to the atmosphere at room temperature will probably not make much difference to it chemically, any surface oxidation that does occur will quickly be reduced by exposure to hydrogen at high temperature.
I got the impression from Rossi's demos that he wasn't being very careful about preventing the powder from being exposed to atmosphere, and wasn't using a vacuum pump. On 13 January 2012 10:25, Wolf Fischer <[email protected]> wrote: > Also if it is just an extra dose of powder: How do you contain the > vacuum..? What kind of cheap and save mechanism could it be to contain the > vacuum? Or to create a new one after refueling? Or will the reactor core > completely be replaced and recycled in a factory? > > Wolf > > > > At a minimum a replaceable cartridge needs to have an additional supply of > hydrogen - and that means a sealable connection (not something you would > necessarily trust a muppet consumer with - a lot of people don't even know > how to tighten a nut. Also if we are to believe recent speculation about > RF excitation that that would need to be delivered to the inside of the > cartridge somehow. > > My speculation is that it is just the addition of an extra dose of powder > through a sealable port into an oversized reaction chamber - the old powder > may be somewhat inert but the new powder's activity isn't hampered by the > presence of the old. > > On 12 January 2012 23:56, Alan J Fletcher <[email protected]> wrote: > >> At 03:46 PM 1/12/2012, Aussie Guy E-Cat wrote: >> >>> Yes it is a BIG change. The reactor design must be VERY different. It is >>> a good development. Go Rossi Go. >>> >> >> It must be an integrated Nickel+Hydrogen cartridge. >> >> >> > >
