2000-6000psi hydrogen is pretty dangerous, be very careful about your design and setup, make sure all your valves seals and fittings are able to withstand those pressures, keep those valves, seals and fittings away from high temperatures, and try to keep reactor vessel volume small.
I believe Rossi operates at about 25bar (350psi). But that might just be the cold loading pressure. I am not sure if he used a pressure regulator on his reactor to limit the pressure. He probably did for the 1MW container, but maybe not for some of his smaller demos (where I seem to remember that he disconnected the hydrogen supply during the test). Remember that (hopefully) a lot of the hydrogen is loaded into the nickel, so the reactor pressure might not rise as much as you think - it might even drop. However for safety it is a good idea to disconnect the hydrogen supply during the test and design assuming 3-4 times the loading pressure. Your heating element does not need to be in the reactor - just put it inside a tube that penetrates through the middle of the reactor. The heater element heats the tube and the tube heats the reactor without requiring any high pressure-electrical feedthroughs. You can measure reactor temperature the same way, with a thermocouple in a tube. This is a standard industrial technique, though it is slower to respond than having the thermocouple exposed directly to the hydrogen in the reactor. There are lots of easy ways to make a heating element, but easiest is buying ceramic rod type cartridge heaters used in soldering irons off-the shelf for <$20, these should be able to operate red-hot (>500°C) On 1 February 2012 09:52, Peter B <[email protected]> wrote: > JoJo .... Thankyou for helping , it might just do the trick > > I have a young electrical engineer helping me out once a week , he is > concerned the element it self may not handle the pressures building up in > the chamber > > In our intended experiments we are going to do 2 main types > > 1. Phen\Chan way > > 2. Rossi way > > > Phen doesnt heat the chamber while the H is at 2000psi > > But Rossi seems to do this > > The engineer seems to think by heating the chamber to 400 C increases the > PSI x 3 (approx) > > Which means the pressures would be around 6000 psi > > He questions if most elements could handle this type of pressures > > > *Question *: Do you think Rossi heats the chamber while the H is > pressuised at 2000 psi > > Thanks Pete > > > > ------------------------------ > From: [email protected] > To: [email protected] > Subject: RE: [Vo]:DGT Screenshot > Date: Wed, 1 Feb 2012 16:27:03 +0800 > > > Peter, How about this cheap heating element. Fits inside a 1/4" copper > tube perfectly. > > > > http://www.ebay.com/itm/350505999493?ru=http%3A%2F%2Fwww.ebay.com%3A80%2Fsch%2Fi.html%3F_from%3DR40%26_trksid%3Dm570.l1313%26_nkw%3D350505999493%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1<http://www.ebay.com/itm/350505999493?ru=http://www.ebay.com:80/sch/i.html?_from%3DR40%26_trksid%3Dm570.l1313%26_nkw%3D350505999493%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1> > > > > Jojo >
