You might say I am splitting hairs but what Mckubre has written here is technically incorrect. The Stephan-Boltzman law is relationship between temperature and output power. It is not a relationship between input power and output power so you can't use the law by itself to infer any relationship between input and output power. Additional assumptions/laws are required.
Harry On Wed, Oct 15, 2014 at 1:08 PM, David Roberson <dlrober...@aol.com> wrote: > You have a good understanding in my opinion. There is no doubt that > energy is being generated within the core. > > Dave > > > > -----Original Message----- > From: Alain Sepeda <alain.sep...@gmail.com> > To: Vortex List <vortex-l@eskimo.com> > Sent: Wed, Oct 15, 2014 12:59 pm > Subject: Re: [Vo]:E-cat : Minimum COP assuming worst mistakes possible > > "A calibration curve will bend down. It never bends up." > > this mean that temperature grow less than the power ? > > this mean that when you increase the power, and if temperature grows > much more that before, something anomalous is happening ? > > Either excess heat, or some external blanket effect (increase of thermal > resistance)... > but convection does not diminish with heat? > > > did I undertand well? > > > 2014-10-14 22:09 GMT+02:00 Jed Rothwell <jedrothw...@gmail.com>: > >> Alain Sepeda <alain.sep...@gmail.com> wrote: >> >>> >>> - is there a simple way , with minimal assumption, to be sure that >>> the COP>1 >>> >>> Look at the color. If it is dull red, it may be around 750°C which is >> where you would expect it to be in a straight line extrapolation >> calibration up to 800 W. If it is white it has to be around 1300°C, which >> is far higher than the calibration indicates it should be. A calibration >> curve will bend down. It never bends up. McKubre pointed this out: >> >> On page 7 of the report the authors state: “Subsequent calculation >> proved that increasing the input by roughly 100 watts had caused an >> increase of about 700 watts in power emitted.” This is interesting. The >> shape of the output vs. input power curve is observed (or implied) to >> strongly curve upwards in a manner completely inconsistent with the >> Stefan-Boltzmann law for radiative heat loss. It is also inconsistent with >> simple convective heat transfer but several issues need to be addressed >> before we can claim this as a qualitative or even “semi-quantitative” >> measure of excess heat production . . . >> >> >> Note that incandescent colors are similar for all materials. >> >> - Jed >> >> >
