Ryan cemented a type-B platinum thermocouple though the center of the plug. So he had actual data on the core temperature which got to about 1200C. The thermocouple at the surface only reported getting to about 850C at the same time. Parkhomov measured his temperature in between - on the outside of the reaction tube in the middle of the heater coil turns - not at the surface.
Architecturally, if proton conduction and reaction with the heater coil ever proves to be a contributor to the excess heat, it could not be replicated in the dogbone. The dogbone has a small air gap between the reaction tube and the heater tube (and the heater coil is on the other side of the alumina heater tube), so any H that diffused through the reaction tube would become H2 or H2O and escape before ever making it to the dogbone heater wire. It wouldn't make any difference what the heater wire was in the dogbone - it is not designed to take advantage of that. For any possible reaction with the heater wire, the wire would have to be wrapped directly in contact with the reaction tube where the conducted H would escape directly onto wire. This is the way Parkhomov made his heater coil. A direct replication of Parkhomov would certainly included this. Such replications are underway, but will take some time to get the materials together. MFMP is asking questions to Parkhomov and I am looking forward to his answers. On Wed, Dec 31, 2014 at 4:01 PM, David Roberson <dlrober...@aol.com> wrote: > Bob, > > Do you need to take into consideration the fact that a small gap exists > between the outer furnace and the inner core tube? Is the contact good > enough to limit the thermal resistance of this space? Any heat power > flowing through that path would cause a rise in temperature of the core. > > I bring this up just as to point out possible differences between the dog > bone and the other experiments. > > Dave >
