Does the COP include the energy of pre-heating? Harry On Feb 9, 2015 1:48 PM, "David Roberson" <[email protected]> wrote:
> That is good Jack. Perhaps it is less intuitive but it captures the > behavior of these types of devices very well. If the slope enters a > negative region then the positive thermal feedback wins the battle and the > device heats up rapidly. The curve also will indicate whether or not a > second high temperature region of stable operation is present. > > Your present design would be classified as a type 1 system in my analysis > since the slope of that curve never enters into a negative region. Once > you push it into a type 2 or 3 system the fireworks will begin. That is > where Dr. Parkhomov is operating with his latest version that is somewhat > insulated. It is going to take a lot of effort and good design for him to > keep these stable. > > I modeled this curve according to the behavior of a tunnel diode. Since > the voltage is analogous to the temperature and the power input analogous > to the current it makes perfect sense. You can determine how to design > tunnel diode oscillators or switches from that basic curve. I see the same > thing happening with these LENR devices. I also realize excellent > correlation to my previous computer models. > > Dave > > > > -----Original Message----- > From: Jack Cole <[email protected]> > To: vortex-l <[email protected]> > Sent: Mon, Feb 9, 2015 1:32 pm > Subject: Re: [Vo]:Titanium as hydrogen carrier in Improved experiment > > I can add that chart. That is actually the way I plot it for > calculating excess power, but it's less intuitive in a presentation. > > On Mon, Feb 9, 2015 at 12:20 PM, David Roberson <[email protected]> > wrote: > >> Not exactly. The slope of the input power will become lower as the >> temperature is increased in the chart that I use. If this slope is not >> reduced as the temperature rises then there is little positive thermal >> feedback present. And, if the slope enters into a negative region as >> temperature rises the device will continue to heat up until it either self >> destructs or the careful geometry of the design begins to take more heat >> power away from the system than is added by the core. The new high >> temperature safe operating region exhibits a positive slope similar to what >> is seen below the negative slope threshold temperature. >> >> Dave >> >> >> >> -----Original Message----- >> From: Jones Beene <[email protected]> >> To: vortex-l <[email protected]> >> Sent: Mon, Feb 9, 2015 12:55 pm >> Subject: RE: [Vo]:Titanium as hydrogen carrier in Improved experiment >> >> Isn’t chart D giving you that ? >> >> >> >> *From:* David Roberson >> >> I would like to see the curve of input power versus temperature plotted. >> The input power needs to appear along the Y-axis and the temperature along >> the X-axis. This type of curve tells very much about how the device will >> behave. It can demonstrate when the COP will become large and indicate >> the potential for runaway conditions. >> >> Dave >> >> >> >> -----Original Message----- >> From: Jones Beene <[email protected]> >> To: vortex-l <[email protected]> >> Sent: Mon, Feb 9, 2015 12:21 pm >> Subject: [Vo]:Titanium as hydrogen carrier in Improved experiment >> Jack Cole has made progress in his continuing effort to reach higher >> COP at lower temperature in a ceramic cell of the type used by Parkhomov >> and Rossi. >> >> http://www.lenr-coldfusion.com/2015/02/09/excess-heating-alternative-hydrogen-source/ >> The results are improved but still only slightly gainful –not far >> enough above the noise level to expect others to drop everything and pay >> attention, yet … but heck, look at it this way – the delta-t gain is >> improved by about 50% over the previous iteration - and at that rate of >> improvement, it will not take long. A goal of COP=1.5 is in range with >> only a few more changes. >> In fact, Jack held back on the hydrogen carrier (TiH2) due to the MFMP >> “explosion” >> and therein is an obvious way to look for further improvement. >> The most notable feature is that gain was seen at very modest P-in >> which is due in part to thermal insulation. >> Jones >> PS – there is a paper in the LENR library by Dash et al where the >> authors state that titanium is more active for LENR than palladium. >> Therefore using TiH2 to carry hydrogen, while retaining lithium in a much >> safer >> form is almost a no-brainer. >> > >
