In the Lagano experiment, the resistance of the heater decreased to one third of its initial startup value. Riddle that one batman.
On Sat, Mar 21, 2015 at 1:33 AM, Alberto De Souza < [email protected]> wrote: > Hi Bob, > > On Fri, Mar 20, 2015 at 9:21 PM, Bob Cook <[email protected]> wrote: > >> Alberto-- >> >> You are correct that voltage and current gives integrated power in the >> section of the coil between the voltage drop measurements. However, if >> your are interested in local power generation in the active region where >> the fuel is, you need to know the resistance in that region and hence its >> temperature together with the current to determine power applied to the >> fuel. >> > > 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. > > >> Bob >> >> >
