Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - How to use TEGs to create power with your exhaust heat

Fionn · 11-16-2018, 03:59 AM

The efficiency both ways is pretty horrible so I don't think it's practical at this point to use them to power AC. It's only harvesting waste heat with them that makes sense since the efficiency is of no relevance. You'd be lucky to end up with 50W worth of cooling on a setup that would be practical to install on a vehicle if you used TEGs/ TECs on both sides.
You'd be far better off to run a DC AC unit from the TEGs but even better would be to just use a normal AC compressor driven from the engine I think!

11-16-2018, 03:59 AM	#56 (permalink)
Fionn EcoModding Lurker Join Date: Aug 2011 Location: Ireland Posts: 17 Thanks: 1 Thanked 3 Times in 2 Posts	The efficiency both ways is pretty horrible so I don't think it's practical at this point to use them to power AC. It's only harvesting waste heat with them that makes sense since the efficiency is of no relevance. You'd be lucky to end up with 50W worth of cooling on a setup that would be practical to install on a vehicle if you used TEGs/ TECs on both sides. You'd be far better off to run a DC AC unit from the TEGs but even better would be to just use a normal AC compressor driven from the engine I think!