Au contraire, mon ami. Just the opposite. When I posted this: http://www.mail-archive.com/[email protected]/msg101517.html
I was returned a lot of skepticism. On Tue, Feb 10, 2015 at 3:26 AM, David Roberson <[email protected]> wrote: > Terry, I assume that you do not believe that LENR had anything to do with > what happened. There may be another explanation but it appears that the > same thing occurred during several different, yet related experiments. > > Take time to consider why you are convinced that a thermal run away > condition could not have yielded this result especially since Rossi has also > warned about it on numerous occasions. > > If you are not familiar with negative resistance type regions of operation > for devices such as tunnel diodes then I understand how this concept seems > strange to you. Once you become familiar with the subject you will see how > it might apply. > > The best way to visualize the effect is to consider what it means to operate > within a negative resistance region and how that impacts the behavior of the > core temperature with time. Assume that enough drive power is applied to > the Hotcat like device to push it into its negative resistance region. The > region begins at a well defined temperature that depends upon the amount of > fuel, the activity of the fuel, and the geometry of the structure among > other parameters. > > Before you enter the negative resistance region you will find that a small > addition of input heat power to the structure will cause the temperature to > increase slightly. If instead that delta in temperature were directly > applied you will measure less additional power generated than was applied > originally. This operation is stable and the output temperature is > bounded. Once you enter the negative resistance region things change. > > Within the negative resistance region that small delta in input power causes > a larger delta in temperature than is required to replenish the initial > change in power input. The power will thus continue to build up > exponentially and the device heads towards self destruction. This process > can be turned around by removing the drive power if that occurs quickly > enough. Also, some other method can be applied that begins to extract power > rapidly with increasing temperature so that another stable region is reached > before the device is destroyed. This would be the ideal type of operation > but may be very difficult to achieve. > > I have long suspected that Rossi uses the pulse width modulation technique > to keep his ECATs under control. If he is careful, he can achieve a COP of > 6 by this method as he claims provided his devices have a negative > resistance region. Perhaps the MFMP team will have an opportunity to try > this technique themselves once they prove that thermal run away is the > reason for the melt down they experienced. It would not be a big surprise > to find that the thermal mass of the system must be increased to slow down > the rate at which the device progresses towards that fatal end result. > > Additional evidence that thermal run away will be big problem to resolve is > seen in the behavior of the Hotcat tested by the independent scientists. > Parkhorov appears to have measured the same factors. They each measured a > modest COP, quite a bit less than 6 when operating without a negative > resistance region being present. I strongly suspect that Rossi was careful > to ensure that the amount of fuel that he inserted into that test unit was > small enough to keep it stable at all drive levels. And, Parkhorov > initially exhibited a stable system that may not have been entirely by good > fortune. He may have played with the fuel charge until he got the best > behavior while avoiding melt down. Once insulation was added to his system > it was pushed over the stable operating line as a negative resistance region > was produced. > > If LENR is real and strongly temperature dependent then thermal run away is > going to be an issue. I fail to see how that is something that should not > be taken seriously. This is especially true when the evidence points in > that direction. > > Dave > > > -----Original Message----- > From: Terry Blanton <[email protected]> > To: vortex-l <[email protected]> > Sent: Mon, Feb 9, 2015 10:34 pm > Subject: Re: [Vo]:Explosion May Be Out of Control LENR > > Hah! >
