I confess I did not read every post on here about this subject.
I’ve got a bunch of engineering degrees, and this subject has come up in my life as well.
Conceptually, with any
radiator or heat dissipation system, the BEST
theoretical outcome would be cooling to ambient temperature, and that’s a theoretical goal only.
If it's 100F out, then you are not going to cool anything below 100F?
You need to introduce an active cooling process or thermal exchange process, either solid state thermal panels, such as those used in tiny portable 12volt fridges, or an air conditioner compressor system.
Just FYI, there ARE insulating fluids used for direct contact
cooling of computer system components.
The CRAY cruciform systems used fluorinert, a 3M product that was used in direct contact with the processors. It’s surprisingly available. Interesting thought.
I guess if it was me, and I HAD
to figure out a way to do this, I would “glue” a bunch of Peltier Thermoelectric Cooling/Heating modules directly to the battery housing, remove the under-car covering, and heat-sink the crap out of "hot side" of the modules.
Easy to come by..... here is the E-Bay search.
http://www.ebay.com/sch/i.html?_from=R4 ... e&_sacat=0
Air flow across the heat sinks would improve efficiency obviously.
Insulating the battery housing would help, but then you trap the heat IN when not actively cooling.
IF you stick enough Peltier modules to that battery case, you WILL
get a frosty battery housing.
It’s super simple, solid state, no moving parts, no fluids, no pumps….. Maybe heat-sinks with fans?