The first calibration process is done in He at 3.5 Bar. We are showing temperatures just a couple degrees warmer than before. Part of the difference might be that we didn't wrap the Celani wire as tight to the supports, which means that we used up the meter one wrap before the end. This may have concentrated the same amount of power into a slightly closer space.
To compensate for this, we may take the previous calibration run at 3.5 Bar in He, subtract that off, and use the difference to make an adjustment to the calibration at the loading (H @ 3.5 Bar at room temp) and running conditions (75%H/25%Ar @ 3.5 Bar at room temp) we plan. Any opinions?
The impedance of this wire performed way different, too.
More baseline data from the many calibrations. To get a sense of the effect of different gasses and pressures, we took measurements at a constant power of 110 W and plotted the temperature achieved at various pressures for each gas. I would love to plot the temperature rise vs. thermal conductivity of the gas, but haven't gotten that far, yet. Anybody wanna try that? The master database for this version is here: Master_Spreadsheet11-9.xls
We have started the second and final Helium run at 0.5 Bar. Stay tuned.
Comments
I appreciate all these suggestions. It is a little overwhelming to try to absorb all of them right away, but they will be contemplated and either acted upon in this experiment if practical, or included into the next version of the experiment.
As far as a good forum for experimental methods, I think we could either create a thread in the discussion area, or you could link to a document from this comment area.
I haven't read all your posts yet, could you please restate how many temperature probes there are, and where.
Some time ago at ecatnews.com we argued that there could be temperature variations along the glass casing which can't be detected by "spot" calorimetry (i.e. measuring temperature only at certain places).
Even if you detect a temperature increase with the Hydrogen loaded wire, that would not be conclusive, but if you manage to prove that the temperature is rising everywhere along the glass casing, this would be sufficient to conclude that there is excess heat production.
Be careful about adjusting the chart values without a proven reason as this leaves open a large door for skeptics to enter.
Do the other temperature readings, particularly of the glass, follow this increase? I would expect the glass temperature to be more filtered and thus consistent if your theory for the difference is correct.
If you don't then the avg temperature or output energy could be the same even though you are measuring higher temperature.
Am I missing something? I didn't read every detail so it's entirely possible.
Very hopeful you guys verify excess heat. I donated.
:)
22passi.it/.../...
However, I wonder why the other wires show odd behavior. Especially the cal1 seems to be messy data.
And we did save the original wire. So, we could swap it back in in that particular, if it seems necessary. If we see a large signal we probably won't bother. If we see little or none, then we probably will have to.
Do as you suggest. Once all your runs are finished reinstall the original wire used for the calibration runs so that it finishes one wrap before the end and rerun to test.
Might I also suggest that you carefully photo/video each set up so that you have a reference resource if you need to replicate any previous experiment. I suspect you do this anyway but no harm in stating the obvious!
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