[DeTomaso] Ceramic coating coolant pipes??

[Charles Engles]

Dear Practical Thermodynamician,

              Egad!   I have done this for about a total of ten years between my two Panteras.  Both of them have Jet Hot coatings for the header applied to all the cooling system pipes throughout the engine room and from the firewall to the radiator.   I used the aluminized ceramic coating to resist corrosion and add a bit of bling.   I never considered the thermodynamics of the situation.

              In practical driving in Oklahoma heat and humidity where 98--102 temps are not uncommon in the summer with 90 % humidity, the temp gauge continues to read 190-195.   I cannot say there is any significant change from the pre-coating period.  Cockpit temps are another matter.  One Pantera has barely adequate AC and the other one has had none for twenty years.  Again, I cannot detect, with my usual insensitivity, any difference from the pre-coating period.   I should also emphasize that both cooling systems have always been able to manage the heat of the Great Plains without any problems.

             I hope my anecdotal experience is helpful.

                            Warmest regards, Chuck Engles

               



-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of Larry Finch via DeTomaso
Sent: Wednesday, November 09, 2022 6:32 PM
To: Email List Address For Posting
Subject: [DeTomaso] Ceramic coating coolant pipes??

All,

Was speaking recently with another owner who shared he had treated his stainless steel coolant pipes with inside/outside ceramic coating. 

We had been talking about the coolant pipes radiant heat that tends to warm the cabin. 

I initially thought this was a pretty good idea but with more thinking I am finding there are two sides to coating the pipes. 

On one side, the inside/outside coating will serve to reduce the outside temperature of the coolant pipes, just as occurs with ceramic coated exhaust headers. Those cooler pipes …should… result in a cooler cabin.

But then I realized the heat blocked from radiating off the coolant pipes is heat that remains in the coolant, unlike in an exhaust system where the heat has a point of exit. 

So in theory, coated coolant pipes will provide a cooler cabin at the expense of increasing the coolant temperature. 

Open to everyone’s thoughts and opinions on whether the increased coolant temperature has the potential to be a problem. 

For the sake of this discussion, let’s assume the cooling system is a fully functional, upgraded aftermarket system capable of 200° idling on a 105° summer day
 
TIA,

Larry 

Sent from me using a magic, handheld electronic gizmo. 
_______________________________________________


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