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HUG Concentric Calorimeter

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Homemade Wire - Will it load?

on .

Since the resistance drop during loading seems to be correlated with real hydrogen absorption, we wondered how difficult that was to recreate.  To explore that, we decided to make our own wire to fit into a LENR stick test cell and test for resistance drop when heated in hydrogen.

Starting with Block Constantan - 200 micron diameter with a black, oxide coating, we treated this particular wire with 2160 cycles. 

- Approx 21 V, and 3 amps

- 5 seconds on, 5 seconds off (not exactly as described in this paper http://lenr-canr.org/acrobat/CelaniFexperiment.pdf)

Wire resistance increased as the cycles progressed, causing the power to decrease over time.
Similar treatments had produced wires that kink, which is similar to the way the Celani wire behaved.  We have not looked at it with SEM, yet, as our microscope is tripping out too easy.

Length:40 cm long
Sample of wire saved for SEM analysis
 
Put into LENR stick on 9/18 - it had set for a couple days in the jig after processing before being used. Small possibility it was touched or had dust settle on it.
R0= 7.9 ohms (multi-meter)
R0= 7.3441 ohms (first readings from HUGnet)

 

 

This will be a simple test of loading, but done in the calorimeter, just to see what happens.  

It is in test FC0407 - LENR Stick: HUG Made Wire in data.hugnetlab.com

And in Calorimeter CTC#3, just above that.

We have more documentation in our Evernote notebook for this experiment here: First Homemade Celani Wire 

Comments   

 
0 #41 Edwin Pell 2013-10-21 22:20
Malachi, I suggest seeing what we have in both the Celani wires and the one home made wire. First an SEM look. Then a cross section in SEM. Then cross section and acid etch to highlight features and SEM.

Also pull off some of the surface of a Celani wire and do atomic composition with EDS and composition of raw wire and home made wire.

You might get university help by saying you are studying hydrogen storage in nickel and nickel/copper alloys. This is a safe topic very green energy for the hydrogen economy...
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0 #40 Ecco 2013-10-17 19:33
@Malachi: additional ideas for new wires treatment would need ready SEM access to check out if they work as intended. Anyway, in no particular order:

- Direct power stimulation (this can be done with the wires in place)
- High temperature oxidation cycles under air -> high temperature (500+ °C) oxide reduction under hydrogen
- Nitric Acid etching
- Liquid nitrogen heat shock treatment (this will create loads of micro cracks. However the right balance to not have very brittle wires would have to be found)
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0 #39 Malachi Heder 2013-10-17 14:51
@ All

We are trying to come up with a new idea for our home made wire. Any ideas?

I think we've demonstrated loading on a joule heated wire, but what's next for it?

Do we try a new wire? Do we continue to load? Do we try power through the active wire?
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0 #38 Robert Greenyer 2013-10-12 15:50
@All

Looking interesting.

In this paper by Celani et al.

http://www.iiste.org/PDFshare/CMRV3N3-27-56.pdf

Whilst an old paper, he discusses the use of HNO3 in section 2(f) after after correct (not too high) current driven, thermal cycling and there is an SEM image of the skeletal result (figure 10 on page 43). We have discussed internally the capability of HNO3 solutions to dissolve things at different rates.

The combination of processes - the boiling off of copper, the oxidisation, the HNO3 treatment and lastly reduction in the H2 atmosphere could all be part of developing the critical surface morphology that could be a skeletal open pore structure with nano wires/cracks with non-linear surface binding forces and desirable crystal sub-structure all supported on good conductor.

In 6 1) - he notes that a wire achieved a resistivity drop of 18% - in the EU test right now - even when powered, we have seen 29% and around 18% for the 2 wires in the active cell. Though Celani has seen wires of this level of loading.
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+1 #37 Ryan Hunt 2013-10-11 21:45
@ Ed - I like the idea of selling a wire joule-heating bench. That could be done quick and cheap. The recipe we used in published in the notebook.
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0 #36 Ryan Hunt 2013-10-11 21:42
@ Ed - I like that idea. I wish I had the time today to work on that. All the data is there, though, if anyone else wants to pull out the pressures, temperatures, and resistances. The trick is that the temperature is not consistent through the volume of the cell. That means the only certain place to determine the full loading is when the cell is cool. The next best thing is to develop a correlation between temperature and pressure when there is no absorption.
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0 #35 Ecco 2013-10-11 21:40
As a possible treatment I would also propose soaking a heated wire in liquid nitrogen in order to form thermal shock cracks on its surface and perhaps even deeper into the bulk. It would then be interesting to see SEM photos of such wires.
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0 #34 Edwin Pell 2013-10-11 21:34
I think you have enough data to publish loading versus temperature. The community would love to see that graph.

An apparatus and recipe would meet the goals of the MFMP 100% but if you can fill in pieces of the "eco-system" of understanding like this graph that is bonus points/ gravy/ a good thing.
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0 #33 Edwin Pell 2013-10-11 21:16
Congratulations , it loads! 7% hot and 11% cold.

Now the question is if you etch out the Cu, CuO, CuO2 with acid and heat again how much more will you get? How much deeper into the wire will the segregation/oxi dation go?

Then there is the big question, will this wire make excess heat as is at 7%?
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0 #32 Ecco 2013-10-08 17:39
It looks like cycling power once down, then up, caused resistance to increase when powered. Strange.
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