- Description: How to reproduce this experiment
The CFR project is a High
Temperature Plasma Electrolysis fully based on the Tadahiko Mizuno
experiment from the university of Hokkaido in Japan. This is a very
interesting experiment and its implication can be a real
breakthrough in the field of New and Clean energy source....
The
enhanced CFR is composed of a 2000 mL thermostatic reaction vessel
filled with 800 mL of demineralized water and Potassium Carbonate (
K2CO3 ). The electrolyte solution commonly used is 0.5 molar ( 0.5 M
).
There are three temperature probes ( K probe or PT100 ). Two
probes are used for measuring the temperature of the cooling water
(Temp In and Temp Out ),
and one probe is used for measuring the
temperature of the electrolyte solution. You need also to use a
flowmeter to measure the cooling water flow.
The Cathode used is
a 4 mm tungsten rod. The tungsten rod can be a pure tungsten rod or
a Th-loaded tungsten TIG electrode (WT20) (with thorium oxide ThO2
1.70% to 2.20% ) commonly used for plasma welding. The use of a
Th-loaded rod increases the life of your cathod. The sputtering
effect produced by the thermionic emission is lower with a Th-loaded
rod than with a pure tungsten rod.
The anode used is composed of
stainless steel mesh ( a grid ) maintained with stainless steel
rods. If you have planned to conduct some chemical analysis, I
recommend you to use a grid made with platinum or nickel . All the
wires connections are made with a 1.5 mm2 copper flexible wire
gained with silicon.
To avoid projections of some drops of the
electrolyte solution from the CFR during the plasma ignition
sequence, I recommend you to put floating balls on the surface of
the liquid (hollow floating balls; pp, 20mm, 2000 PK from Cole
Parmer Instrument ).
Use a DC Power Supply which is able to give
about 300 V DC at 20 A ( dont use AC voltage ). The voltage is tuned
with an autotransformer
Switch on the fume hood,
Set the
autotransformer to 0 Volt and s...
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