On Sat, Mar 21, 2015 at 6:58 PM, Jack Cole <jcol...@gmail.com> wrote:
> I agree Axil. If I were to design this, I would work out a constant power > supply algorithm for each unit. I think it would be difficult to wire them > in series and have them behave the same. A control system that adjusts the > power level to each cell with changing resistance seems like it would make > a more convincing demo. > This would make the hypothesis test too complex to convince most people. And, if we have a large COP (> 2), this would not be necessary. I do not expect that the resistance of the heaters will significantly vary (except to infinity in case of heater failure). One might want to test the hypothesis that LENR changes the resistance of the heater. But that would be another experiment. I propose to consider the resistance of the heaters a control variable, since we can control them (measured periodically and take the measurement into account on the computation of the input power). > On Sat, Mar 21, 2015 at 5:23 PM, Axil Axil <janap...@gmail.com> wrote: > >> The heat generated by any section of the wire that does not come into >> contact with the reactor core to transfer heat to the reactor must be >> subtracted from the total power consumed by the heater. This includes any >> inter reactor wire runs between the null and active reactor cores, >> The power consumed by each section of wire must be determined and the power >> adjusted accordingly. >> >> On Sat, Mar 21, 2015 at 6:08 PM, <mix...@bigpond.com> wrote: >> >>> In reply to Alberto De Souza's message of Sat, 21 Mar 2015 01:33:55 >>> -0400: >>> Hi, >>> [snip] >>> > >>> >Actually, the resistence of heating wires varies very little with >>> >temperature. In the case of Kanthal A-1 (that MFMP was using), it >>> increases >>> >by a factor of only 5% from 100 to 1400 degress Celsius (see >>> > >>> http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/kanthal-a-1/ >>> ). >>> >So, considering a high COP (3), this control-variable variance (the wire >>> >resistance in the reactors) is negligible. >>> > >>> >Alberto. >>> >>> This assumes that the chemical composition of the wires remains >>> constant. A >>> coating of Al &/or absorption of Hydrogen could both change the >>> resistance. >>> >>> Regards, >>> >>> Robin van Spaandonk >>> >>> http://rvanspaa.freehostia.com/project.html >>> >>> >> >
