Well, ya know that old saying "it seemed like a good idea at the time"?
Each pair of Peltier plates (40mm square each) takes about 15A to operate. Each pair takes a bit of effort to keep the "hot"side cool so they don't burn up. So, roughly 200A and a truck radiator later.......
Bottom line. It's not practical. For the same power to operate 2 Peltier plates at 200BTU I could run my 5000BTU window AC.
But, some fun eh?
The idea was to put something together that I could use for my overnight stops. Something that would blow some cold air on my face/head so that I could sleep more comfortably than with just a fan. It takes a good half hour to install my window AC and some time to take it out and I was just looking for something a little faster to set up.
Kind of like those ice buckets with a fan setups only with Peltier plates as ice cubes that won't melt.
It does work at a small scale. It blows 40-50 degree air. Not near enough to cool any space, but enough to keep my head cool.