What controls the temperature in the E-Cat's self-sustained mode? I had presumed that all the work Rossi did to go from resistivity heated temperature control to self-sustained temperature control was geared around feedback of the temperature to the heat transport mass flow rate. I didn't have direct evidence of this, other than the relatively narrow range of temperatures during self-sustained mode.
Keep in mind that Rossi has stated on numerous occasions that his reaction rate is an increasing function of temperature, and that therefore his system can go into a runaway feedback loop thus destroying itself if it is not carefully controlled. If the resistivity power can be varied during the run, and the heat transport mass flow rate is constant, but high enough to quench the reaction in the absence of resistivity heating, the temperature control system is obvious. But if there is no resistivity heating control there has to be control of the heat transport mass flow rate, does there not?

