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HUG Concentric Calorimeter

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Pressure Rise from Break Down of Acetone

on .

Last Thursday we added approximately 2 mL of acetone to the LENR Stick in the CTC.  Then we pulled a vacuum down to 200 mBar for about a minute to purge most of the atmospheric gasses before the turning the heat on.  We set it to run 2 hours on, one hour off.  The whole idea was to play with a recommendation from Celani a few months ago.  This wire was not showing us much, so we decided to try out the idea while we prep the multi-wire test.  

The most interesting thing we saw was the pressure building up as the acetone presumably broke down and deposited carbon on the hot wire.  The most interesting part of that happened since midnight local time when the rate of pressure rise increased, dropped, off, and then rose again.  We also saw sizable rise in the resistance up to just over 9 ohms, again.

As far as I can tell, the chemistry inside is entering different modes as it progresses.

The indicated power out has been really low, but on the last cycle with the higher pressure, it rose by about 30 to 50 mW.  Because we did not test the calorimeter at these pressures, we can't be entirely certain that this is at all meaningful.  I would much rather see some performance like ST Micro electronics and Celani both claim with whole watts of excess.

Per one suggestion from Ron B, as of this moment, we are going to just keep the power on for a while.

Other possibilities include vacuuming out the cell and pressurizing with hydrogen.  Any advice?



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0 #43 Natalia 2018-06-04 10:17
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0 #40 Ecco 2013-06-13 22:18
Still, the power supply doesn't seem to be performing exceptionally well even at 1 hz.
0 #39 Ryan Hunt 2013-06-13 22:08
The sweep function was not working well at those low frequencies, so it will sit right near 1 hz all night. We had it up to 21 hz and that messed with the power control algorithm pretty good.
0 #38 Ecco 2013-06-13 20:47
Is the DC polarity switching frequency slowly being increased over time at the moment, by the way? Wire resistance data suggests so to me.
0 #37 Ecco 2013-06-13 18:47
Will the cell still run with the current 1 hour on-30 minutes off cycle? I think it will be more of interest to explore the polarity switching response at various frequencies while the cell is running at a steady state. I guess this will require continuous human presence, though.
0 #36 Ryan Hunt 2013-06-13 18:37
Just added in a DPDT mechanical relay powered by a bench top signal generator. It will start at 0.7 hz and we'll just play from here. I don't expect anything out of this particular wire, but we'll continue to play a bit.
0 #35 Ryan Hunt 2013-06-13 16:11
We are installing a shelf just above that test to make more room for equipment. I think we are bumping it around a tiny bit as we disconnect the vac pump.
0 #34 Ecco 2013-06-13 16:08
@Robert Greenyer: thanks, much better now.

@Ryan Hunt: something is going on with the cell right now. Resistance has jumped up a bit in two steps, and output power has done so as well, although it still remains below significance. Reactor temperature decreased a bit. Still wiggling the stick cell inside the calorimeter ?
0 #33 Robert Greenyer 2013-06-13 15:57
@Ecco, your wish is our command.

0 #32 Ecco 2013-06-13 14:20
I see that CTC cell pressure is slowly decreasing.
Is hydrogen leaking or being absorbed? (although as resistance has more or less settled I guess it's the former)

Besides this, it seems there has been no change at all since yesterday. Excess heat production can be ruled out at the moment, unfortunately.

@MFMP: I think the new font is very hard to read. Please set it back to the default setting, if possible.
0 #31 Ron B 2013-06-13 07:30
How to you decide what temp to run the cell at and also what pressure?
I was going over the data from the Mica cell from back in Feb and the temp that we got all the excess power was like 100C less than the temps that appear to be running now.
When we had roughly 275C and .75 bar we had 10% excess power (and even a bit more).
0 #30 Ryan Hunt 2013-06-12 21:37
We learned today that the internal temperature is sensitive to wiggling. That implies that the cell is changing thermal contact with the inner shell of the calorimeter. When we powered up the cell after pulling a vacuum and laoding with 0,55 bar of H2, the temp in the cell came up to only 377 instead of almost 400. Then when we wiggled it, it went up some more, but only to about 380C. The power out dropped from 120 mW to 60 mW, which is probably all within variability, then.

But not much more than that was learned. We are going cycle it all night for 60 minutes on, 30 minutes at 0.5 W, so we can get valid resistance measurements.
However, I also manually flipped the polarity of the power connection, too. Let's see what we see.
0 #29 Ecco 2013-06-12 21:33
From the experiment log:

Just manually switched the polarity of the power wires. Weĺl see if that does anything overnight.

Well I didn't know you could do that already! Can polarity be switched while the cell is running or does it require manual intervention possible only when power is off?

If it's as simple as pressing a switch, it would interesting to do that repeteadly when power is applied and see what happens. Sort of like when you ring a bell, if you get the idea.
0 #28 Ecco 2013-06-12 18:04
@Ron B: hydrogen diffusion in metals at room temperature isn't very quick. That's why I advised that if my idea about storing several pressurized sticks containing active wires were to be put in place, it would be better if the sticks themselves were heated, even passively (externally) to make things simpler and cheaper.

@Ryan Hunt: it's good to know that parts can be reused. Saves money and time.
0 #27 Ron B 2013-06-12 17:37
A really great piece of information in this puzzle soup would be a nice graph of the resistance of a wire in pressurized hydrogen at room temp over some period of time.
0 #26 Ryan Hunt 2013-06-12 16:18
@ Ecco - Actually, it looks like our new water flow calorimeter that works with the same lenr sticks will likely be used for the multi wire test.
Your idea of pre-loading by heating without the use of a calorimeter and monitoring the resistance and pressure make a lot of sense. For best results, though, it is good to do a calibration test with each stick.
0 #25 Ecco 2013-06-12 16:12
True, but that would delay the more promising upcoming multi-wire experiment.

An idea could be to have more spare "sticks" containing active wires and store them in a safe place (preferably heated), under highly pressurized hydrogen. In that way it would be possible to "pre-load" them for a long time while performing other experiments on a different stick in the CTC cell. Then, after experimenting with that stick (which might take several weeks or months), a different one could be swapped, and tests with new preloaded wires could quickly resume again.

I'm not sure however if:
- Sticks can be stored with pressurized hydrogen in a simple manner.
- Calibration would be needed before reusing them again.
0 #24 Ron B 2013-06-12 15:59
We could always do the deep evac if the the simple evac doesn't net any results. The bad thing about the deep evac is that it will be another couple of weeks to get the H2 loaded again.

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