What took so long?
This is "good-news/bad-news" in a way. But it totally expected. In short, it can be shown logically that multiple units of any thermally triggered, overunity device MUST be amenable to operation with no input energy, once started. IOW - this result is completely expected, and should not be a surprise to anyone - instead, the bad-news is why it has taken so long to become a part of the record. >From recent images of the 4-unit E-Cat array - there does seem to be extra plumbing which is visible, and this would be the obvious way that excess heat from one unit is shared with others, so that eventually - the unit which started the recirculation process can itself be powered by the others; such that no input energy from outside the system is required. The probable reason this expected result has been delayed is that the trigger temperature is higher than Rossi has previously indicated. Indeed, Brian Ahern's results indicate a thermal trigger in the range of 500 C for his active material, which is not as active as Rossi's (yet) but which is already near the limit of the safe operating range, so temperature control becomes the big issue - if an when - you try to recirculate the working fluid between multiple units . and for ease of operation, you must AVOID steam, if possible. It would not surprise me to hear - and I will make this an "official prediction" that when the MW unit is put into production, water will NOT be the heat transfer medium between the E-Cats. Instead all of the units will be interconnected using a dedicated heat transfer fluid with lower volatility, which heat is eventually ported to an attached heat exchanger, which then heats the water for use in the factory or to drive a turbine. The fluid will probably be one of the new replacements for PCBs like "diphenyl ether" - the new "Therminol" or an equivalent, which is the current choice for solar trough units, despite some toxicity issues. http://en.wikipedia.org/wiki/Diphenyl_oxide Jones
