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Celani / Rossi mash-up... me356

Written by Robert Greenyer on .

Using nickel wire normally sold for e-cigarettes and a *GlowStick* inspired construction - this fast reactor build used LiAlH4 as the Hydrogen source. Of course, a real, or home made (more later on that) Celani wire could be used.

Supplier of wire

Wire detail

Here is a coil calculator

Components ready to assemble

Closeup on wire fixture and seal

Look into wire holding assembly.

Final assembly

Experiment layout

Layout reverse angle

Calibration data here:


lan Goldwater has kindly produced a best guesstimate of an extended calibration curve.



me356 says

Reactor was taken for the measurement (still under the pressure of hydrogen) and resistance is just perfectly same as it was during the calibration.

Measurement was performed at the same ambient temperature."

Graph from Ecco

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+1 #8 Robert Greenyer 2015-10-23 21:04 Quote
+1 #7 Robert Greenyer 2015-10-13 14:02
Thanks for the info Charlie.
+2 #6 charlie tapp 2015-10-12 17:40
@ Robert greenyer just checked resistance on a similar fire brick I have one measurement was 259 k ohms but mostly 8 to 11 m ohms might want to insulate it
+2 #5 charlie tapp 2015-10-12 16:14
@ Robert greenyer should you put some kind of electrical insulation under the metal ends of the reactor? could be shorting across bricks taking away from your final measurements. if it was it couldn't be much I guess you could just mega ohm resistance test the brick to check. still would be nice to insulate for safety of touching the brick.
+1 #4 Robert Greenyer 2015-10-12 13:44
Here is calibration for run


Here is data from the current run

+1 #3 EccoEcco 2015-10-12 10:54
Something interesting could be happening at the interface between the nickel wire and the inner alumina tube with the interaction of LiAlH4, which you mentioned it creeps on the surfaces of that tube. I would inspect the wire carefully and perhaps even have SEM analysis performed on it when you're done, if you think you're really seeing excess heat.
+1 #2 Robert Greenyer 2015-10-11 23:51
180mg of LiAlH4 was added
0 #1 Robert Greenyer 2015-10-11 21:06

First step was fast to 90ºC external

Second Step, up to 200ºC over 60 mins

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