On Aug 31, 2011, at 6:23 AM, Jed Rothwell wrote:
Jouni Valkonen wrote:
I am sure that Rossi
was quite well familiar with the real power of E-Cat, because water
inflow rate was adjusted in right level.
I believe he does it the other way. He leaves the water inflow rate
steady and adjusts the power output to vaporize all of the water.
In the videos you can see him adjusting the controls of the eCat,
but I have not seen him change the pump controller.
In calorimetry it is good practice to make conditions uniform and
unvarying as much as you can. Rather than changing the flow to keep
the outlet temperature stable, it is better to increase or decrease
power. Rossi has much better control over the power of his cell
than in any previous cold fusion experiment.
- Jed
Some typos corrected and clarifying language added:
This conversation seems nonsensical in light of recent discussion.
Rossi has "perfect control" operating in the range chosen, due to not
examining the output products. All he has to do is provide enough
sustained power to heat the water flow to boiling temperature, call
it Pb, or enough above that for a momentary "steam" demonstration. I
haven't seen any test where thermal power reached significantly above
the dryout point, call that Pd, where all water input is converted to
steam. If power had ever reached above Pd then the steam temperature
would be way above boiling point for a sustained period. If
operating above Pb then the flue temperature will remain at or above
boiling temperature, as Cantwell demonstrated by experiment. So, in
sustained stable equilibrium mode, Rossi is typically operating in
the power range between Pb and Pd. Pb and Pd are determined by the
flow rate. As I demonstrated earlier, if you operate continually in
the power range Pb to Pd then water overflow necessarily occurs. See:
http://www.mtaonline.net/~hheffner/KrivitFilm.pdf
http://www.mtaonline.net/~hheffner/Cantwell2.pdf
Rossi says the steam is dry. All Rossi has to do to check this is to
operate at equilibrium in this Pb to Pd output power range for a long
period and then remove the hose, or provide a transparent hose. He
will then see that water is gushing forth out the exit port. That
condition I consider to be well beyond just a "wet steam" or a "steam
quality" issue.
The steam can not be "dry" in equilibrium operation in this output
power range, Pb to Pd, even if a significant amount of power comes
from a nuclear reaction. If operating in this power range water is
obviously coming out and the "calorimetry" method used is worthless.
This method is perfect for self delusion.
The dynamic situation is far more difficult to analyze because
insufficient information about the thermodynamic properties of the
device is available. Also, an effort to analyze the device dynamics
would be far more time consuming and less convincing than simply
providing good calorimetry.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
