On Wed, Nov 16, 2011 at 7:28 PM, Berke Durak <[email protected]> wrote:
> Joshua Cude wrote: > > > Actually, even if you trust F. about the energy during the run the > > data is entirely consistent with no excess heat. > > Not according to Ny Teknik's "This is how the test was done" box at > http://www.nyteknik.se/nyheter/energi_miljo/energi/article3303682.ece > > > Subtracting the energy supplied during startup, about 320 kWh at an > > average power of 160 kW, the net energy would still be 2249 kWh. In > > this case the energy output during startup should also be estimated > > and added. > > That's 320e3 x 3600 = 576 MJ. So if you trust the reported figures, > then there clearly is plenty of excess energy, and the only > non-cold-fusion explanation involves an international conspiracy and > technologically non-trivial deception. > What I meant was, if you trust their *measured* data, namely the measured temperatures. Their *calculation* of total output power (and output energy) requires an unproved (and extremely unlikely) assumption that the output fluid was dry steam. As I've said before, the temperatures are consistent with 70 kW output, to give 385 kWh total. The input power before 12:30 is not given in the report, so that's a 2nd order trust, but if you accept Lewan's report that it was 320 kWh, and if you add the 66 kWh input during the self-sustained mode, that's 386 kWh. There is no report that water was flowing out during the warm-up period, so the report is consistent with no energy output in that time. The report is also consistent with energy being stored in the ecats from previous runs; they could have had power going in through the night, e.g. Finally, the input power does not include any energy added by chemical reactions between the hydrogen and nickel, which could be substantial, and would not be considered "excess" energy. So, if you trust the reported *measurements*, then they are consistent with no excess energy at all. You have to trust their *assumptions* to get a lot of excess energy. And their assumptions are highly implausible, because they require (1) a discontinuous, eightfold increase in the power transfer within a few minutes, and (2) an output power transfer that is stable to within a per cent or two.
