Thermoelectric Devices Recover Waste Heat
Powerchips claim 70-80% carnot efficiency. http://www.powerchips.gi/index.shtml
FURTHER READING
Quantum well thermoelectronics 28 page presentation
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_bass.pdf
A 55 page presentation on using thermoelectronics for cars and other applications. It also discusses scaling up the
production processes.
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_fairbanks.pdf
Another set of slides on making diesels more efficient
http://walshcarlines.com/pdf/Challenges%20Facing%20Diesels%20in%20US%20%20John%20Fairbanks.pdf
Freedomcar website
http://www1.eere.energy.gov/vehiclesandfuels/
A presentation on a near term target of 10% efficient thermoelectric system.
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_crane.pdf
2006 advanced engine project status review.
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/adv_engine_2006/2006_advanced_engine_4.pdf
The target for engine efficiency increase was 10%– 13% which was met by achieving 10.5% efficiency improvement when
the engine was operating over a steady-state cycle. However, the achievement in the road cycle was 8.2% increase in
efficiency. When the engine was coupled to a CVT the efficiency increase was only 5%.
A comprehensive study showed that with a 5% increased efficiency and the fuel price of $2.50/gal, it takes a little less
than 1.5 years to compensate the initial charges added to the engine due to the efficiency recovery units. This study has
been done for a 10,000 unit production volume per year. With increase in annual production numbers and considering a
learning factor of 0.87 the pay back time will reduce significantly.
Powerchips claim 70-80% carnot efficiency. http://www.powerchips.gi/index.shtml
FURTHER READING
Quantum well thermoelectronics 28 page presentation
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_bass.pdf
A 55 page presentation on using thermoelectronics for cars and other applications. It also discusses scaling up the
production processes.
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_fairbanks.pdf
Another set of slides on making diesels more efficient
http://walshcarlines.com/pdf/Challenges%20Facing%20Diesels%20in%20US%20%20John%20Fairbanks.pdf
Freedomcar website
http://www1.eere.energy.gov/vehiclesandfuels/
A presentation on a near term target of 10% efficient thermoelectric system.
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_crane.pdf
2006 advanced engine project status review.
http://www1.eere.energy.gov/vehiclesandfuels/pdfs/adv_engine_2006/2006_advanced_engine_4.pdf
The target for engine efficiency increase was 10%– 13% which was met by achieving 10.5% efficiency improvement when
the engine was operating over a steady-state cycle. However, the achievement in the road cycle was 8.2% increase in
efficiency. When the engine was coupled to a CVT the efficiency increase was only 5%.
A comprehensive study showed that with a 5% increased efficiency and the fuel price of $2.50/gal, it takes a little less
than 1.5 years to compensate the initial charges added to the engine due to the efficiency recovery units. This study has
been done for a 10,000 unit production volume per year. With increase in annual production numbers and considering a
learning factor of 0.87 the pay back time will reduce significantly.
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