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Mid-Calibration Data

Geschrieben von Ryan Hunt am .

Now that we have several calibration cycles done at different conditions, we are starting to analyze the data we have gathered and we are seeing some interesting things.

First, the baseline performance of the cell for the different calibration runs.  

We are seeing a pretty good agreement from run to run.  We are expecting to operate in the 250C range.  At that range, one watt shows approx a 2 degree C rise.  That means if we achieve 5 watts of excess energy we would expect the temperature to be 10 degrees C higher than this baseline.  These aren't final numbers, but it gives us a rough idea of what to expect.

Cal1, Cal2, Cal3 are all Helium 

4 a, b, c, d are all at the conditions we expect to be loading the wire at in a few days:  75%H / 25%Ar at 3.5 bar starting pressure

5 is the same gas mix starting at 2 bar.

 

When we take the runs from set 4 we get a much tighter agreement (sorry, no graph at the moment).  Malachi has done an error bar estimation from 3 identical runs and found the average +/- 3% within the 95% confidence limit.  Though preliminary and needing more study, it appears we are looking for a minimum of 3 watts excess energy before we could say we have excess energy.  5 watts or more would be easier to identify with certainty, and 15 to 20 watts like Celani demonstrated would be clear as glass.  (And thanks to Nicolas we know exactly how clear that is.)  

 

The other more intriguing thing we have seen is the impedance of the Isotan 44 wire (the type Celani uses as his precursor) behaving strangely.  See the graph below.

Cal 1 is the first test run in Helium.  Notice the impedance dropping extremely quickly. 

Cal 2 and the rest behave in almost the same way to each other with decreasing impedance as the temperature goes up with a dip that bottoms out at 250C.  This is roughly the temperature that Celani's cell operated at.

Cal 4b is different, though.  This run is the only one in which we heated with the nichrome wire instead of the Isotan.  Though there was still a tiny voltage and current through the Isotan wire, the resistance showed a pretty consistent positive slope with temperature.  That might suggest that the strange resistance curve happens only when a certain amount of current is passing through the wire.  Or maybe only when a certain current runs through it and a certain amount of hydrogen might have absorbed into it.  Suggestions?

It is possible that there was enough residual hydrogen in the cell even after achieving a vacuum in the range of 10^-5 torr before Cal1 that the Isotan wire could have absorbed enough to change its behavior in the very first test.

More to come as it happens.  Stay tuned.

 

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0 #6 Eric Walker 2012-11-11 00:36
Hi there -- I am quite excited about this project and am very happy you're making your data available in .csv files.

When I plot T_Mica v. Impedance Red as a plot of discrete points in Mathematica, I'm getting a choppier graph than you. What are the parameters you're using for the graph?
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0 #5 Charlie Smith 2012-11-08 05:47
Have you thought of running the cell with a mix of helium and hydrogen? if so u may need to do calibration runs with hydrogen substituted.

I just wonder If helium plays a similar role to hydrogen as we know that in normal hot fusion helium plays a critical role. and in many successfull LENR experiments I read helium was used to purge test cells. I find it odd, what if the tiny amounts of helium left from purging were actually the most important part of a LENR reaction that were bieng overlooked? anyway I'm probably talking rubbish its late here.

Keep up the good work!
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0 #4 Charlie Smith 2012-11-08 05:36
If your using DC then the only 'conventional' reason i can think of for this would be some kind of carbon deposits on the surface of the wire as carbons resistivity decreases with temp rise. Maybe if the wire had been heated in air it would have built up tiny carbon deposits?

Certainly very interesting!
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0 #3 Ryan Hunt 2012-11-07 21:31
Here is the spec sheet for the wire in question
isotekcorp.com/.../isotan.pdf

The described resistivity curve does not match what we saw.
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+1 #2 Ged 2012-11-06 23:47
This is really great control and calibration data. That Isotan behavior is odd, and your idea sounds the most likely. Still, the calibration curves don't show an unusual power out from this untreated Isotan, even if it did absorb some hydrogen (definitely don't want an accidental LENR effect being put in the control bin, and obscuring experimental results).

Really can't wait to see the experimental run with Celani's wire, as now we have plenty of solid data to compare it with. Getting exciting!
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0 #1 Paul Hunt 2012-11-06 23:37
Assuming that this is the first time a steady current has been run through that isotan wire, I'm guessing that in the first run the current is breaking down oxides at the connections. In the telephone industry they run a "sealing current" on some cable pairs to keep them from getting noisy due to oxidized connections.
The really fascinating part is cal4b compared to the rest of the runs. Why is the resistance lower when current is heavier?
Have we seen this behaviour in other wires? Have we looked?
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