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

gone-ot · 07-22-2017, 01:49 PM

If you KNOW the engine RPM speed that you're most likely to be operating at, you can also "gain" some heat (and thus more output) by locating the TIG array around the square pipe at the acoustic 1/2-wave length down the pipe from the engine, ie: the spot where, at a constant engine speed, the exhaust-gas pulses create a "standing-wave."

This is basically an 'acoustic' version of adjusting antenna feed-tuning as done by CB'ers for their antennas. Where the "standing-wave" occurs, the pulses will be strongest & hottest...the "sweet-spot" for those TIGs.

Of course, this is only valid for one RPM (ie: highway cruising at a set speed), but something possibly worth considering?

07-22-2017, 01:49 PM	#13 (permalink)
gone-ot ...beats walking... Join Date: Jul 2009 Location: . Posts: 6,190 Thanks: 179 Thanked 1,525 Times in 1,126 Posts	If you KNOW the engine RPM speed that you're most likely to be operating at, you can also "gain" some heat (and thus more output) by locating the TIG array around the square pipe at the acoustic 1/2-wave length down the pipe from the engine, ie: the spot where, at a constant engine speed, the exhaust-gas pulses create a "standing-wave." This is basically an 'acoustic' version of adjusting antenna feed-tuning as done by CB'ers for their antennas. Where the "standing-wave" occurs, the pulses will be strongest & hottest...the "sweet-spot" for those TIGs. Of course, this is only valid for one RPM (ie: highway cruising at a set speed), but something possibly worth considering? Last edited by gone-ot; 07-22-2017 at 04:48 PM..