|The basic design of the TEG-Electrolyzer system|
Hi-Z Technology and Dynamic Fuel Systems are exploring the use of electricity generated from waste heat to power an on-board electrolysis unit to produce hydrogen for supplementary injection into the intake port of an engine to increase combustion efficiency.
The 180-watt thermoelectric generator (TEG) used in the project was the original proof-of-principle generator Hi-Z used for its 1 kW TEG later developed.
The Jetstar hydrogen generation unit normally draws power from the vehicle’s electrical system. Use of the TEG generator reduces the parasitic load, further enhancing fuel economy. John Bass of Hi-Z presented the concept in a poster session at the Diesel Engine-Efficiency and Emissions Research Conference (DEER) 2006.
Supplemental hydrogen injection into the intake of engines can improve fuel efficiency while reducing emissions. (Earlier post.)