[DeTomaso] Coolant Article

[Thomas Törnblom]

About measuring the voltage of the coolant in the radiator, this article 
describes my theory very nicely, where they have two different 
multimeters showing different voltage.

I believe the issue is not that there is a voltage in the coolant, the 
issue is that the setup works as a battery/galvanic cell/voltaic cell, 
where the aluminum radiator is one of the electrodes (cathode), the 
coolant is the electrolyte and the multimeter test lead is the other 
electrode (anode), and depending on the alloy of the test lead you will 
read a different voltage. The difference between the two multimeters 
depend on different metals being used for the meters test leads. Had 
they swapped the test leads between the two meters I believe the voltage 
readings would also have been swapped.

If they had used a strip of aluminum as electrode instead of the test 
lead the voltage would likely have been zero as the two electrodes are 
then made of similar metal and thus will not have an electrical 
potential between them.

Reducing the conductivity of the coolant will reduce the galvanic 
corrosion, so de-ionized or distilled water will help that. I have no 
comments on wether that has other implications for aluminum, I am no 
chemist :)

/Thomas

Den 2018-11-02 kl. 02:39, skrev Ken Green via DeTomaso:
>     Comments?
>     [1]An Inside Look at the Radical Changes in Antifreeze Chemistry
>
>          An Inside Look at the Radical Changes in Antifreeze Chemistry
>
>     Antifreeze does more than keep your engine from freezing. Jeff Smith
>     helps us find out how it can even cause pro...
>
> References
>
>     Visible links
>     1. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/
>
>     Hidden links:
>     3. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/
>
>
> !DSPAM:5bdbaaea2449152292657!
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-- 
Real life:   Thomas Törnblom             Email:    thomas at hax.se
Snail mail:  Banvallsvägen 14            Phone:    +46 18 32 31 18
              S - 754 40 Uppsala, Sweden  Mobile:   +46 76 209 8320

-------------- next part --------------
   About measuring the voltage of the coolant in the radiator, this
   article describes my theory very nicely, where they have two different
   multimeters showing different voltage.
   I believe the issue is not that there is a voltage in the coolant, the
   issue is that the setup works as a battery/galvanic cell/voltaic cell,
   where the aluminum radiator is one of the electrodes (cathode), the
   coolant is the electrolyte and the multimeter test lead is the other
   electrode (anode), and depending on the alloy of the test lead you will
   read a different voltage. The difference between the two multimeters
   depend on different metals being used for the meters test leads. Had
   they swapped the test leads between the two meters I believe the
   voltage readings would also have been swapped.
   If they had used a strip of aluminum as electrode instead of the test
   lead the voltage would likely have been zero as the two electrodes are
   then made of similar metal and thus will not have an electrical
   potential between them.
   Reducing the conductivity of the coolant will reduce the galvanic
   corrosion, so de-ionized or distilled water will help that. I have no
   comments on wether that has other implications for aluminum, I am no
   chemist :)
   /Thomas

   Den 2018-11-02 kl. 02:39, skrev Ken Green via DeTomaso:

   Comments?
   [1]An Inside Look at the Radical Changes in Antifreeze Chemistry

        An Inside Look at the Radical Changes in Antifreeze Chemistry

   Antifreeze does more than keep your engine from freezing. Jeff Smith
   helps us find out how it can even cause pro...

References

   Visible links
   1. [1]https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech
/antifreeze-chemistry/

   Hidden links:
   3. [2]https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech
/antifreeze-chemistry/


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--
Real life:   Thomas Toernblom             Email:    [5]thomas at hax.se
Snail mail:  Banvallsvaegen 14            Phone:    +46 18 32 31 18
             S - 754 40 Uppsala, Sweden  Mobile:   +46 76 209 8320

References

   1. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/
   2. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/
   3. mailto:DeTomaso at server.detomasolist.com
   4. http://server.detomasolist.com/mailman/listinfo/detomaso
   5. mailto:thomas at hax.se