[DeTomaso] Coolant Article
Thomas Törnblom
thomas at hax.se
Fri Nov 2 16:34:24 EDT 2018
A brass radiator is not affected by this, but other, less noble parts like iron/steel or aluminum water pumps may be, but they have so much “meat” that I doubt anything will break.
I did a simple test with an aluminum baking pan, with two different test leads and the difference is clearly visible.
Here I’m using a zinc plated screw, here we see that the polarity is reversed.
The water is soft water from our water softener, the same type of water I use in my cooling system. I also use propylene glycol, mainly for toxicity issues.
/Thomas
> 2 nov. 2018 kl. 19:02 skrev Pantdino <pantdino at aol.com>:
>
> So with a brass radiator this aluminum anode issue does not apply?
>
> Jim
>
> Sent from AOL Mobile Mail
>
> On Friday, November 2, 2018, Thomas Törnblom <thomas at hax.se> wrote:
>
> 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
> _______________________________________________
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-------------- next part --------------
A brass radiator is not affected by this, but other, less noble parts
like iron/steel or aluminum water pumps may be, but they have so much
"meat" that I doubt anything will break.
I did a simple test with an aluminum baking pan, with two different
test leads and the difference is clearly visible.
image2.jpeg
image3.jpeg
Here I'm using a zinc plated screw, here we see that the polarity is
reversed.
image4.jpeg
The water is soft water from our water softener, the same type of water
I use in my cooling system. I also use propylene glycol, mainly for
toxicity issues.
/Thomas
2 nov. 2018 kl. 19:02 skrev Pantdino <[1]pantdino at aol.com>:
So with a brass radiator this aluminum anode issue does not apply?
Jim
Sent from AOL Mobile Mail
On Friday, November 2, 2018, Thomas Toernblom <[2]thomas at hax.se> wrote:
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][3]https://www.streetmusclemag.com/tech-stories/fuel-cooling-igni
tion-tech
/antifreeze-chemistry/
Hidden links:
3.
[2][4]https://www.streetmusclemag.com/tech-stories/fuel-cooling-igni
tion-tech
/antifreeze-chemistry/
_______________________________________________
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osted here to all past, current, or future members of the list. They
also grant
the list owner permission to maintain an archive or approve the
archiving of lis
t messages.
!DSPAM:5bdbaaea2449152292657!
--
Real life: Thomas Toernblom Email: [5][7]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.
[8]https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignitio
n-tech/antifreeze-chemistry/
2.
[9]https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignitio
n-tech/antifreeze-chemistry/
3. [10]mailto:DeTomaso at server.detomasolist.com
4. [11]http://server.detomasolist.com/mailman/listinfo/detomaso
5. [12]mailto:thomas at hax.se
_______________________________________________
Detomaso Email List is not managed by POCA
Posted emails must not exceed 1.5 Megabytes
DeTomaso mailing list
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To manage your subscription (change email address, unsubscribe,
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Members who post to this list grant license to the list to forward
any message posted here to all past, current, or future members of
the list. They also grant the list owner permission to maintain an
archive or approve the archiving of list messages.
!DSPAM:5bdc915f215514914200!
References
1. mailto:pantdino at aol.com
2. mailto:thomas at hax.se
3. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech
4. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech
5. mailto:DeTomaso at server.detomasolist.com
6. http://server.detomasolist.com/mailman/listinfo/detomaso
7. mailto:thomas at hax.se
8. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/
9. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/
10. mailto:DeTomaso at server.detomasolist.com?
11. http://server.detomasolist.com/mailman/listinfo/detomaso
12. mailto:thomas at hax.se?
13. mailto:DeTomaso at server.detomasolist.com
14. http://server.detomasolist.com/mailman/listinfo/detomaso
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