We had very good results this afternoon, I tried to nail down the activation temperature using a passive heating after reducing the pressure to 1 bar and increasing the power in the NiCr wire. for a temperature of 184°C we were able to see T mica rising without any change in P_in. It kept oscillating with an amplitude at lower value as the temperature was set lower.
Then reducing power in several time allowed us to see that this behaviour was showing a lower amplitude.
The first run of the EU cell will occur at around 20:30 CET. We will have a range of power metrics for you.
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P_Out Low (W) = The most conservative power in watts output from the cell calculated from the highest calibration curve fit
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P_Out High (W) = The most optimistic power in watts output from the cell calculated from the lowest calibration curve fit
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P_Xs Low (W) = The most conservative EXCESS power calculated by the formulae
P_Xs Low = P_Out Low - (Power (Blue) + Power (Red))
Today at 12:12:12 PST on the 12/12/12 (during the 21st CET hour) we will power the active wire and see if there is any excess heat generated from the cell. We should start at P_in = 48W to get the best replication of Celani’s work.
We have a “deliberate mistake” in the data viewer, if you are sober enough at this time in the day, we challenge you to spot it.
Wish us luck!
UPDATE #1 Flicking the switch
So, as of 2:55 Indian time I am seeing around 6W Pxs on our most conservative baseline.
Here was the moment of switchover of the Power.
Bob
Comments
Lunch with CELANI - OPEN GOOGLE HANGOUT NOW!
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Could this have been due to some sort of short-term chemical reaction from the wire? Perhaps due to the release of more oxygen from it?
This is the accuracy for the thermocouples:
Temp Type E J K N R S T
200 1.7 1.5 1.5 1.5 1.0 1.0 0.8
digital.ni.com/.../...
If the P_Xs calculation is based on the difference between a measured temperature and T_Ambient, then an increasing T_Ambient will decrease the offset and thus decrease P_Xs.
"Use Of A Very Sensitive Seebeck Calorimeter To Study The Pons-Fleischman n And Letts Effects" at lenr-canr.org/.../...
It will also be interesting to see if after decreasing input power back to 48W, excess power will be the same or will have increased. I'm starting to think that it's not got a definite relationship with wire impedance.
All the temperature readings are in phase with T_Ambient.
Offset of T_Well, T_Mica, T_GlassIn and T_GlassOut could be due to pressure decrease during that time.
Larger offset of T-Board (approx +5°C) should be explained.
i.imgur.com/gXOcb.png
22passi.blogspot.com/.../...
- Have a constant, controlled air flow around the cell. This avoids stagnating pockets of heated air affecting temperature measurements and reactor performance.
- Use a stainless steel tube instead of glass. In order to avoid possible artifacts due to changing wire emissivity affecting temperature readings. This would also help contain more heat inside the reactor.
- Paint the outer walls of the reactor tube in high emissivity black paint. This would make T_glassout temperature readings and emissive power calculations by Stefan-Boltzman n calculation more reliable.
This is the chart that he posted:
1. A promising case has been made that the HVAC system is kicking in and is adding a near-hourly period to P_Xs Low.
2. When you subtract out the period, I suspect you'll get a fairly smooth curve, with several watts above Power (Blue). As Jed Rothwell has pointed out elsewhere (bit.ly/SVw04s), I think the kind of signal we're probably looking for if LENR is underway is going to be very jumpy -- first up, then way down, then way up, etc. This leads me to think we have a calibration problem in this instance. In any event, the SB argument that Sanjeev has made suggests that the error bars are quite large here; if we do things right, I think we can get them down to the milliwatts.
3. If we don't have a calibration problem, the current result would be pretty exciting. It would appear that we have accomplished the goal of replicating Celani, and can then address how to make the error bars smaller.
So it should make an excellent medium, but there may be better ones.
Well done
Reading all this comments about the changing ambient temperature, I would like to ask some questions about your temperature measuring system:
Where is your cold junction located ?
Is the cold junction exposed to ambient temperature or
is the junction held on a stable temperature ?
How are you doing your cold junction compensation ?
How are the TC`s connected to the measuring amplifier (copper or TC wire) ?
If you connect your TC`s to the amplifier by use of an copper wire, there is a second TC present in your loop at the location where you connect the TC wire to the copper wire. This second TC could be affected by ambient temperature changes.
When this effect is not compensated with a secondary measurement at this location, your measured data will show exact the behaviour you recognize with changing ambient temperature.
Br Dieter
Thanks for all the great debate and constructive criticism, you are all helping make this a better experiment.
I am now in Rome and will hopefully capture some interesting things tomorrow.
See: i.imgur.com/eVjeP.jpg
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