In an automobile, only 1/3 of the potential energy in the fuel is converted into mechanical energy and significant portion of the energy is lost as heat.
There have been previous attempts to recuperate this lost energy. In the early 1990's, Porsche developed automotive thermoelectric generators (ATEG) which didn't go past prototyping stage. Currently, Porsche Motorsports is testing a thermal energy harvesting system in their LeMans series Race car.
In addition to Porsche's research, GM is in collaboration with Future Tech, LLC. to explore the idea of using themoelectric technology to harvest energy from internal combustion engines. Other automotive manufactures, such as BMW, are also exploring this technology.
Currently the power usage in a
- Small car is approximately 150 W
- Full size truck is approximately 500 W
If this technology can successfully be implemented, then components such as the radiator, water pump, and alternator could effectively have reduced workload or removed from the system, thus reducing the load to the internal combustion engine.
With the growing interest in green technology, are there technology barriers beside efficiency that are preventing the implementation of energy harvesting from internal combustion engines using thermoelectric technology?
- Which one must be used matched output voltage or open circuit voltage?
- Benefits of Thermoelectric Technology for the Automobile
- The Promise and Problems of Thermoelectric Generators
- Modeling of an Automotive ThermoElectricGenerator (ATEG)
- Thermoelectrics to replace car alternators and improve MPG
- Thermo-Electric Generator in Turbocharged Diesel Engine
- Kettering University researchers are working with General Dynamics to convert the unused heat energy of their propulsion systems to useful and clean energy
- Porsche 919 Hybrid LeMans Racer Goes After The Two Thirds of Gasoline’s Energy That’s Wasted As Heat
- Germans trying to replace Alternator with Thermoelectric Generators or TEGs
- Porsche 919 Hybrid LMP1 Le Mans prototype...
The suggested duplicate is related, but still distinctly different. The order of magnitude of energy available to recover from an internal combustion engine is significantly greater than within the GPU of a video card. As such, the economies of scale are different and different solutions are therefore possible.