On Fri, Jun 3, 2011 at 11:33 AM, Jones Beene <jone...@pacbell.net> wrote:
> Everyone on this forum, by now, should realize that nothing short of closing the loop will convince the majority of skeptics, and with COP in the range of 6, any grad student could pull that off at one tenth the cost of a megawatt plant. I agree, standalone is essential, as I've repeated many times. And Rossi's device produces heat, and uses heat as input, so problems of Carnot efficiency should not be present. But if Rossi claims he needs electrical input for safety reasons he can't divulge, then this COP of 6 is marginal at best. The COP of 30 claimed in January would be easy, but not 6. For an 80C temperature difference, the Carnot efficiency is only 21%, or about 1/5. With practical losses, it would not be possible to close the loop. Of course, it should not be difficult to design the ecat to operate at higher temperatures, to make it easier, but there may be excuses about that too. A suspicious observer might say Rossi reduced his promised COP to 6 from 30 to give him an excuse for requiring an input; for why he can't close the loop.
