In the old style E-Cat core, the flow of coolant water was the way the E-Cat heat production process was controlled. Water flow was increased to retard the reaction, and conversely water flow was retarded to increase the reaction.
On the other hand, the DGT core is also thermionic. DGT turns the reaction off and on to produce a pulsed heat source where heat generation is averaged over a period of time. Because the reaction mechanism is no longer thermionic, there is no coolant involved, electric control alone can regulate the reaction in the E-Cat core. In the new solid state E-Cat design,a steady flow of input electric current results in a steady level of direct output of heat production. The elimination of thermionic control is major progress made possible by the design of the solid state E-Cat, IMHO. Cheers: Axil On Fri, Jul 6, 2012 at 3:25 PM, Harry Veeder <[email protected]> wrote: > I just want to remind people that the claimed operating temperature of > 600C is not new. When Rossi presented the ecat in Jan 2011, he said > the core would reach temperatures around 600C, but the heated water > only just boiled. Now he claims the core is stable at 600C but he is > not doing anything with the generated heat. Is this progress or > puffery? > > Harry > > On Fri, Jul 6, 2012 at 1:56 PM, David Roberson <[email protected]> wrote: > > Recently it has been reported that the latest version of the Rossi ECAT > can > > operate at 600 degrees centigrade or more without going unstable. This > is a > > remarkable improvement if accurate and it is suggested that the proof > will > > be delivered soon. > > The earlier versions of the device tended to become unstable when the > > temperature increased much beyond the operational level and now that > appears > > to be under control. To operate in such a manner suggests that the > > mechanism which establishes the LENR activity is mostly independent of > > temperature of the device. Actually it might imply that now there is a > form > > of negative feedback operating which tends to throttle back the energy > > generation process once a threshold temperature is reached. > > I have long hoped that the driver source could become independent of the > > output states in LENR devices since that would devoice the devices from > the > > strong temperature effects that have made stability a big problem to > contend > > with. Imagine how wonderful it will be if we are able to control the > > reaction by just changing the drive with minor temperature degradations. > > There has been a lot of recent activity related to carbon nanotubes and > > variation in the waveforms driving the LENR devices. Perhaps Rossi has > > found a good combination of hydrogen storage with release control and an > > electrical signal that work together as a system. Time will reveal if > all > > or any of this is true. > > Maybe someone within the group has knowledge of the operation of the > > Patterson cells which seemed to use an electric current as the control > > handle. Was that device sensitive to temperature in the manner > associated > > with positive feedback or more benign as would be expected if negative > > feedback were dominate? > > I for one would welcome the improvements in the Rossi device that have > been > > outlined, but have learned from experience that it is easy to say > something > > remarkable but then not follow up with the goods. Perhaps this time we > will > > see the results that we so much anticipate. > > Dave > > > >
