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Automotive thermoelectric generator

January 05, 2023

An automotive thermoelectric generator (ATEG) is a device that converts some of the waste heat of an internal combustion engine (IC) into electricity using the Seebeck Effect. A typical ATEG consists of four main elements: A hot-side heat exchanger, a cold-side heat exchanger, thermoelectric materials, and a compression assembly system. ATEGs can convert waste heat from an engine's coolant or exhaust into electricity. By reclaiming this otherwise lost energy, ATEGs decrease fuel consumed by the electric generator load on the engine. However, the cost of the unit and the extra fuel consumed due to its weight must be also considered.

Operation principles

In ATEGs, thermoelectric materials are packed between the hot-side and the cold-side heat exchangers. The thermoelectric materials are made up of p-type and n-type semiconductors, while the heat exchangers are metal plates with high thermal conductivity.[1]

The temperature difference between the two surfaces of the thermoelectric module(s) generates electricity using the Seebeck Effect. When hot exhaust from the engine passes through an exhaust ATEG, the charge carriers of the semiconductors within the generator diffuse from the hot-side heat exchanger to the cold-side exchanger. The build-up of charge carriers results in a net charge, producing an electrostatic potential while the heat transfer drives a current.[2] With exhaust temperatures of 700 °C (≈1300 °F) or more, the temperature difference between exhaust gas on the hot side and coolant on the cold side is several hundred degrees.[3] This temperature difference is capable of generating 500-750 W of electricity.[4]

The compression assembly system aims to decrease the thermal contact resistance between the thermoelectric module and the heat exchanger surfaces. In coolant-based ATEGs, the cold side heat exchanger uses engine coolant as the cooling fluid, while in exhaust-based ATEGs, the cold-side heat exchanger uses ambient air as the cooling fluid.

Efficiency

Currently, ATEGs are about 5% efficient. However, advancements in thin-film and quantum well technologies could increase efficiency up to 15% in the future.[5]

The efficiency of an ATEG is governed by the thermoelectric conversion efficiency of the materials and the thermal efficiency of the two heat exchangers. The ATEG efficiency can be expressed as:[6]

ζOV = ζCONV х ζHX х ρ

Where:

  • ζOV : The overall efficiency of the ATEG
  • ζCONV : Conversion efficiency of thermoelectric materials
  • ζHX: Efficiency of the heat exchangers
  • ρ : The ratio between the heat passed through thermoelectric materials to that passed from the hot side to the cold side

Benefits

The primary goal of ATEGs is to reduce fuel consumption and therefore reduce operating costs of a vehicle or help the vehicle comply with fuel efficiency standards. Forty percent of an IC engine's energy is lost through exhaust gas heat.[7][8] Implementing ATEGs in diesel engines seems to be more challenging compared to gasoline engines due to lower exhaust temperature and higher mass-flow rates.[9][10] This is the reason most ATEG development has been focused on gasoline engines.[6][11][12] However, there exist several ATEG designs for light-duty[13] and heavy-duty[14][15] diesel engines.

By converting the lost heat into electricity, ATEGs decrease fuel consumption by reducing the electric generator load on the engine. ATEGs allow the automobile to generate electricity from the engine's thermal energy rather than using mechanical energy to power an electric generator. Since the electricity is generated from waste heat that would otherwise be released into the environment, the engine burns less fuel to power the vehicle's electrical components, such as the headlights. Therefore, the automobile releases fewer emissions.[4]

Decreased fuel consumption also results in increased fuel economy. Replacing the conventional electric generator with ATEGs could ultimately increase the fuel economy by up to 4%.[16]

The ATEG's ability to generate electricity without moving parts is an advantage over mechanical electric generators alternatives.[1] In addition, it has been stated that for low power engine conditions, ATEGs may be able to harvest more net energy than electric turbogenerators.[9]

Challenges

The greatest challenge to the scaling of ATEGs from prototyping to production has been the cost of the underlying thermoelectric materials. Since the early-2000s, many research agencies and institutions poured large sums of money into advancing the efficiency of thermoelectric materials. While efficiency improvements were made in materials such as the half heuslers and skutterudites, like their predecessors bismuth telluride and lead telluride, the cost of these materials has proven prohibitive for large-scale manufacturing.[17] Recent advances by some researchers and companies in low-cost thermoelectric materials have resulted in significant commercial promise for ATEGs,[18] most notably the low-cost production of tetrahedrite by Michigan State University[19] and its commercialization by US-based Alphabet Energy with General Motors.[20]

Like any new component on an automobile, the use of an ATEG presents new engineering problems to consider, as well. However, given an ATEG's relatively low impact on the use of an automobile, its challenges are not as considerable as other new automotive technologies. For instance, since exhaust has to flow through the ATEG's heat exchanger, kinetic energy from the gas is lost, causing increased pumping losses. This is referred to as back pressure, which reduces the engine's performance.[7] This can be accounted for by downsizing the muffler, resulting in net zero or even negative total back-pressure on the engine, as Faurecia and other companies have shown.[21]

To make the ATEG's efficiency more consistent, coolant is usually used on the cold-side heat exchanger rather than ambient air so that the temperature difference will be the same on both hot and cold days. This may increase the radiator's size since piping must be extended to the exhaust manifold, and it may add to the radiator's load because there is more heat being transferred to the coolant.[16] Proper thermal design does not require an upsized cooling system.

The added weight of ATEGs causes the engine to work harder, resulting in lower gas mileage. Most automotive efficiency improvement studies of ATEGs, however, have resulted in a net positive efficiency gain even when considering the weight of the device.[22]

History

Although the Seebeck effect was discovered in 1821, the use of thermoelectric power generators was restricted mainly to military and space applications until the second half of the twentieth century. This restriction was caused by the low conversion efficiency of thermoelectric materials at that time.

In 1963, the first ATEG was built and reported by Neild et al.[23] In 1988, Birkholz et al. published the results of their work in collaboration with Porsche. These results described an exhaust-based ATEG which integrated iron-based thermoelectric materials between a carbon steel hot-side heat exchanger and an aluminium cold-side heat exchanger. This ATEG could produce tens of watts out of a Porsche 944 exhaust system.[24]

In the early 1990s, Hi-Z Inc designed an ATEG which could produce 1 kW from a diesel truck exhaust system. The company in the following years introduced other designs for diesel trucks as well as military vehicles

In the late 1990s, Nissan Motors published the results of testing its ATEG which utilized SiGe thermoelectric materials. Nissan ATEG produced 35.6 W in testing conditions similar to the running conditions of a 3.0 L gasoline engine in hill-climb mode at 60.0 km/h.

Since the early-2000s, nearly every major automaker and exhaust supplier has experimented or studied thermoelectric generators, and companies including General Motors, BMW, Daimler, Ford, Renault, Honda, Toyota, Hyundai, Valeo, Boysen, Faurecia, Tenneco, Denso, Gentherm Inc., Alphabet Energy, and numerous others have built and tested prototypes.[25][26][27]

In January 2012, Car and Driver named an ATEG created by a team led by Amerigon (now Gentherm Incorporated) one of the 10 "most promising" technologies.[28]

External links

References

  1. ^ a b Yang, Jihui; Stabler, Francis R. (13 February 2009). "Automotive Applications of Thermoelectric Materials". Journal of Electronic Materials. 38 (7): 1245–1251. doi:10.1007/s11664-009-0680-z.
  2. ^ Snyder, G. Jeffrey; Toberer, Eric S. (February 2008). "Complex Thermoelectric Materials". Nature Materials. 7 (2): 105–14. doi:10.1038/nmat2090. PMID 18219332.
  3. ^ "TEGs – Using Car Exhaust To Lower Emissions". Science 2.0. 27 August 2014. Retrieved 23 September 2020.
  4. ^ a b Laird, Lorelei (16 August 2010). . Energy Blog. United States Department of Energy. Archived from the original on 19 July 2011. Retrieved 22 September 2020.
  5. ^ Smith, Kandler; Thornton, Matthew (January 2009), Feasibility of Thermoelectrics for Waste Heat Recovery in Conventional Vehicles, National Renewable Energy Laboratory, doi:10.2172/951806
  6. ^ a b Ikoma K.; Munekiyo M.; Kobayashi M.; et al. (28 March 1998). Thermoelectric module and generator for gasoline engine vehicles. Seventeenth International Conference on Thermoelectrics. Proceedings ICT98 (Cat. 98TH8365). Nagoya, Japan: Institute of Electrical and Electronics Engineers. pp. 464–467. doi:10.1109/ICT.1998.740419.
  7. ^ a b Yu, C. “Thermoelectric automotive waste heat energy recovery using maximum power point tracking”. Energy Conversion and Management, 2008, VOL 50; page 1506
  8. ^ Chuang Yu; Chau K.T. (July 2009). "Thermoelectric automotive waste heat energy recovery using maximum power point tracking". Energy Conversion and Management. 50 (6): 1506–1512. doi:10.1016/j.enconman.2009.02.015.
  9. ^ a b Fernández-Yáñez, P.; Armas, O.; Kiwan, R.; Stefanopoulou, A.G.; Boehman, A.L. (November 2018). "A thermoelectric generator in exhaust systems of spark-ignition and compression-ignition engines. A comparison with an electric turbo-generator". Applied Energy. 229: 80–87. doi:10.1016/j.apenergy.2018.07.107. ISSN 0306-2619.
  10. ^ Durand, Thibaut; Dimopoulos Eggenschwiler, Panayotis; Tang, Yinglu; Liao, Yujun; Landmann, Daniel (July 2018). "Potential of energy recuperation in the exhaust gas of state of the art light duty vehicles with thermoelectric elements". Fuel. 224: 271–279. doi:10.1016/j.fuel.2018.03.078. ISSN 0016-2361.
  11. ^ Haidar, J.G.; Ghojel, J.I. (2001). Waste heat recovery from the exhaust of low-power diesel engine using thermoelectric generators. Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589). Institute of Electrical and Electronics Engineers. pp. 413–418. doi:10.1109/ict.2001.979919. ISBN 978-0780372054.
  12. ^ Friedrich, Horst; Schier, Michael; Häfele, Christian; Weiler, Tobias (April 2010). "Electricity from exhausts — development of thermoelectric generators for use in vehicles". ATZ Worldwide. 112 (4): 48–54. doi:10.1007/bf03225237. ISSN 2192-9076.
  13. ^ Fernández-Yañez, Pablo; Armas, Octavio; Capetillo, Azael; Martínez-Martínez, Simón (September 2018). "Thermal analysis of a thermoelectric generator for light-duty diesel engines". Applied Energy. 226: 690–702. doi:10.1016/j.apenergy.2018.05.114. ISSN 0306-2619.
  14. ^ Wang, Yiping; Li, Shuai; Xie, Xu; Deng, Yadong; Liu, Xun; Su, Chuqi (May 2018). "Performance evaluation of an automotive thermoelectric generator with inserted fins or dimpled-surface hot heat exchanger". Applied Energy. 218: 391–401. doi:10.1016/j.apenergy.2018.02.176. ISSN 0306-2619.
  15. ^ Kim, Tae Young; Negash, Assmelash A.; Cho, Gyubaek (September 2016). "Waste heat recovery of a diesel engine using a thermoelectric generator equipped with customized thermoelectric modules". Energy Conversion and Management. 124: 280–286. doi:10.1016/j.enconman.2016.07.013. ISSN 0196-8904.
  16. ^ a b Stabler, Francis. "Automotive Thermoelectric Generator Design Issues". DOE Thermoelectric Applications Workshop.
  17. ^ "NSF/DOE Thermoelectrics Partnership: Thermoelectrics for Automotive Waste Heat Recovery | Department of Energy". energy.gov. Retrieved 1 May 2017.
  18. ^ Media, BioAge. "Green Car Congress: Alphabet Energy introduces PowerModules for modular thermoelectric waste heat recovery; partnership with Borla for heavy-duty trucks". www.greencarcongress.com. Retrieved 1 May 2017.
  19. ^ Lu, Xu; Morelli, Donald T. (26 March 2013). "Natural mineral tetrahedrite as a direct source of thermoelectric materials". Physical Chemistry Chemical Physics. 15 (16): 5762–6. Bibcode:2013PCCP...15.5762L. doi:10.1039/C3CP50920F. ISSN 1463-9084. PMID 23503421.
  20. ^ "Alphabet Energy goes from B to C round · Articles · Global University Venturing". www.globaluniversityventuring.com. Retrieved 1 May 2017.
  21. ^ . Faurecia North America. Archived from the original on 5 August 2017. Retrieved 1 May 2017.
  22. ^ Stabler, Francis. "Benefits of Thermoelectric Technology for the Automobile". DOE Thermoelectric Applications Workshop.
  23. ^ A. B. Neild, Jr., SAE-645A (1963).
  24. ^ Birkholz, U., et al. "Conversion of Waste Exhaust Heat in Automobile using FeSi2 Thermoelements". Proc. 7th International Conference on Thermoelectric Energy Conversion. 1988, Arlington, USA, pp. 124-128.
  25. ^ Orr, B.; Akbarzadeh, A.; Mochizuki, M.; Singh, R. (25 May 2016). "A review of car waste heat recovery systems utilising thermoelectric generators and heat pipes". Applied Thermal Engineering. 101: 490–495. doi:10.1016/j.applthermaleng.2015.10.081.
  26. ^ "Green Car Congress: Thermoelectrics". www.greencarcongress.com. Retrieved 1 May 2017.
  27. ^ Thacher E. F., Helenbrook B. T., Karri M. A., and Richter Clayton J. "Testing an automobile thermoelectric exhaust based thermoelectric generator in a light truck" Proceedings of the I MECH E Part D Journal of Automobile Engineering, Volume 221, Number 1, 2007, pp. 95-107(13)
  28. ^ “2012 10Best: 10 Most Promising Future Technologies: Thermal Juice”, Car & Driver, December 2011.

January 05, 2023
automotive, thermoelectric, generator, automotive, thermoelectric, generator, ateg, device, that, converts, some, waste, heat, internal, combustion, engine, into, electricity, using, seebeck, effect, typical, ateg, consists, four, main, elements, side, heat, e. An automotive thermoelectric generator ATEG is a device that converts some of the waste heat of an internal combustion engine IC into electricity using the Seebeck Effect A typical ATEG consists of four main elements A hot side heat exchanger a cold side heat exchanger thermoelectric materials and a compression assembly system ATEGs can convert waste heat from an engine s coolant or exhaust into electricity By reclaiming this otherwise lost energy ATEGs decrease fuel consumed by the electric generator load on the engine However the cost of the unit and the extra fuel consumed due to its weight must be also considered Contents 1 Operation principles 2 Efficiency 3 Benefits 4 Challenges 5 History 6 External links 7 ReferencesOperation principles EditIn ATEGs thermoelectric materials are packed between the hot side and the cold side heat exchangers The thermoelectric materials are made up of p type and n type semiconductors while the heat exchangers are metal plates with high thermal conductivity 1 The temperature difference between the two surfaces of the thermoelectric module s generates electricity using the Seebeck Effect When hot exhaust from the engine passes through an exhaust ATEG the charge carriers of the semiconductors within the generator diffuse from the hot side heat exchanger to the cold side exchanger The build up of charge carriers results in a net charge producing an electrostatic potential while the heat transfer drives a current 2 With exhaust temperatures of 700 C 1300 F or more the temperature difference between exhaust gas on the hot side and coolant on the cold side is several hundred degrees 3 This temperature difference is capable of generating 500 750 W of electricity 4 The compression assembly system aims to decrease the thermal contact resistance between the thermoelectric module and the heat exchanger surfaces In coolant based ATEGs the cold side heat exchanger uses engine coolant as the cooling fluid while in exhaust based ATEGs the cold side heat exchanger uses ambient air as the cooling fluid Efficiency EditCurrently ATEGs are about 5 efficient However advancements in thin film and quantum well technologies could increase efficiency up to 15 in the future 5 The efficiency of an ATEG is governed by the thermoelectric conversion efficiency of the materials and the thermal efficiency of the two heat exchangers The ATEG efficiency can be expressed as 6 zOV zCONV h zHX h rWhere zOV The overall efficiency of the ATEG zCONV Conversion efficiency of thermoelectric materials zHX Efficiency of the heat exchangers r The ratio between the heat passed through thermoelectric materials to that passed from the hot side to the cold sideBenefits EditThe primary goal of ATEGs is to reduce fuel consumption and therefore reduce operating costs of a vehicle or help the vehicle comply with fuel efficiency standards Forty percent of an IC engine s energy is lost through exhaust gas heat 7 8 Implementing ATEGs in diesel engines seems to be more challenging compared to gasoline engines due to lower exhaust temperature and higher mass flow rates 9 10 This is the reason most ATEG development has been focused on gasoline engines 6 11 12 However there exist several ATEG designs for light duty 13 and heavy duty 14 15 diesel engines By converting the lost heat into electricity ATEGs decrease fuel consumption by reducing the electric generator load on the engine ATEGs allow the automobile to generate electricity from the engine s thermal energy rather than using mechanical energy to power an electric generator Since the electricity is generated from waste heat that would otherwise be released into the environment the engine burns less fuel to power the vehicle s electrical components such as the headlights Therefore the automobile releases fewer emissions 4 Decreased fuel consumption also results in increased fuel economy Replacing the conventional electric generator with ATEGs could ultimately increase the fuel economy by up to 4 16 The ATEG s ability to generate electricity without moving parts is an advantage over mechanical electric generators alternatives 1 In addition it has been stated that for low power engine conditions ATEGs may be able to harvest more net energy than electric turbogenerators 9 Challenges EditThe greatest challenge to the scaling of ATEGs from prototyping to production has been the cost of the underlying thermoelectric materials Since the early 2000s many research agencies and institutions poured large sums of money into advancing the efficiency of thermoelectric materials While efficiency improvements were made in materials such as the half heuslers and skutterudites like their predecessors bismuth telluride and lead telluride the cost of these materials has proven prohibitive for large scale manufacturing 17 Recent advances by some researchers and companies in low cost thermoelectric materials have resulted in significant commercial promise for ATEGs 18 most notably the low cost production of tetrahedrite by Michigan State University 19 and its commercialization by US based Alphabet Energy with General Motors 20 Like any new component on an automobile the use of an ATEG presents new engineering problems to consider as well However given an ATEG s relatively low impact on the use of an automobile its challenges are not as considerable as other new automotive technologies For instance since exhaust has to flow through the ATEG s heat exchanger kinetic energy from the gas is lost causing increased pumping losses This is referred to as back pressure which reduces the engine s performance 7 This can be accounted for by downsizing the muffler resulting in net zero or even negative total back pressure on the engine as Faurecia and other companies have shown 21 To make the ATEG s efficiency more consistent coolant is usually used on the cold side heat exchanger rather than ambient air so that the temperature difference will be the same on both hot and cold days This may increase the radiator s size since piping must be extended to the exhaust manifold and it may add to the radiator s load because there is more heat being transferred to the coolant 16 Proper thermal design does not require an upsized cooling system The added weight of ATEGs causes the engine to work harder resulting in lower gas mileage Most automotive efficiency improvement studies of ATEGs however have resulted in a net positive efficiency gain even when considering the weight of the device 22 History EditAlthough the Seebeck effect was discovered in 1821 the use of thermoelectric power generators was restricted mainly to military and space applications until the second half of the twentieth century This restriction was caused by the low conversion efficiency of thermoelectric materials at that time In 1963 the first ATEG was built and reported by Neild et al 23 In 1988 Birkholz et al published the results of their work in collaboration with Porsche These results described an exhaust based ATEG which integrated iron based thermoelectric materials between a carbon steel hot side heat exchanger and an aluminium cold side heat exchanger This ATEG could produce tens of watts out of a Porsche 944 exhaust system 24 In the early 1990s Hi Z Inc designed an ATEG which could produce 1 kW from a diesel truck exhaust system The company in the following years introduced other designs for diesel trucks as well as military vehiclesIn the late 1990s Nissan Motors published the results of testing its ATEG which utilized SiGe thermoelectric materials Nissan ATEG produced 35 6 W in testing conditions similar to the running conditions of a 3 0 L gasoline engine in hill climb mode at 60 0 km h Since the early 2000s nearly every major automaker and exhaust supplier has experimented or studied thermoelectric generators and companies including General Motors BMW Daimler Ford Renault Honda Toyota Hyundai Valeo Boysen Faurecia Tenneco Denso Gentherm Inc Alphabet Energy and numerous others have built and tested prototypes 25 26 27 In January 2012 Car and Driver named an ATEG created by a team led by Amerigon now Gentherm Incorporated one of the 10 most promising technologies 28 External links Edithttps www technologyreview com s 424092 powering your car with waste heat References Edit a b Yang Jihui Stabler Francis R 13 February 2009 Automotive Applications of Thermoelectric Materials Journal of Electronic Materials 38 7 1245 1251 doi 10 1007 s11664 009 0680 z Snyder G Jeffrey Toberer Eric S February 2008 Complex Thermoelectric Materials Nature Materials 7 2 105 14 doi 10 1038 nmat2090 PMID 18219332 TEGs Using Car Exhaust To Lower Emissions Science 2 0 27 August 2014 Retrieved 23 September 2020 a b Laird Lorelei 16 August 2010 Could TEG improve your car s efficiency Energy Blog United States Department of Energy Archived from the original on 19 July 2011 Retrieved 22 September 2020 Smith Kandler Thornton Matthew January 2009 Feasibility of Thermoelectrics for Waste Heat Recovery in Conventional Vehicles National Renewable Energy Laboratory doi 10 2172 951806 a b Ikoma K Munekiyo M Kobayashi M et al 28 March 1998 Thermoelectric module and generator for gasoline engine vehicles Seventeenth International Conference on Thermoelectrics Proceedings ICT98 Cat 98TH8365 Nagoya Japan Institute of Electrical and Electronics Engineers pp 464 467 doi 10 1109 ICT 1998 740419 a b Yu C Thermoelectric automotive waste heat energy recovery using maximum power point tracking Energy Conversion and Management 2008 VOL 50 page 1506 Chuang Yu Chau K T July 2009 Thermoelectric automotive waste heat energy recovery using maximum power point tracking Energy Conversion and Management 50 6 1506 1512 doi 10 1016 j enconman 2009 02 015 a b Fernandez Yanez P Armas O Kiwan R Stefanopoulou A G Boehman A L November 2018 A thermoelectric generator in exhaust systems of spark ignition and compression ignition engines A comparison with an electric turbo generator Applied Energy 229 80 87 doi 10 1016 j apenergy 2018 07 107 ISSN 0306 2619 Durand Thibaut Dimopoulos Eggenschwiler Panayotis Tang Yinglu Liao Yujun Landmann Daniel July 2018 Potential of energy recuperation in the exhaust gas of state of the art light duty vehicles with thermoelectric elements Fuel 224 271 279 doi 10 1016 j fuel 2018 03 078 ISSN 0016 2361 Haidar J G Ghojel J I 2001 Waste heat recovery from the exhaust of low power diesel engine using thermoelectric generators Proceedings ICT2001 20 International Conference on Thermoelectrics Cat No 01TH8589 Institute of Electrical and Electronics Engineers pp 413 418 doi 10 1109 ict 2001 979919 ISBN 978 0780372054 Friedrich Horst Schier Michael Hafele Christian Weiler Tobias April 2010 Electricity from exhausts development of thermoelectric generators for use in vehicles ATZ Worldwide 112 4 48 54 doi 10 1007 bf03225237 ISSN 2192 9076 Fernandez Yanez Pablo Armas Octavio Capetillo Azael Martinez Martinez Simon September 2018 Thermal analysis of a thermoelectric generator for light duty diesel engines Applied Energy 226 690 702 doi 10 1016 j apenergy 2018 05 114 ISSN 0306 2619 Wang Yiping Li Shuai Xie Xu Deng Yadong Liu Xun Su Chuqi May 2018 Performance evaluation of an automotive thermoelectric generator with inserted fins or dimpled surface hot heat exchanger Applied Energy 218 391 401 doi 10 1016 j apenergy 2018 02 176 ISSN 0306 2619 Kim Tae Young Negash Assmelash A Cho Gyubaek September 2016 Waste heat recovery of a diesel engine using a thermoelectric generator equipped with customized thermoelectric modules Energy Conversion and Management 124 280 286 doi 10 1016 j enconman 2016 07 013 ISSN 0196 8904 a b Stabler Francis Automotive Thermoelectric Generator Design Issues DOE Thermoelectric Applications Workshop NSF DOE Thermoelectrics Partnership Thermoelectrics for Automotive Waste Heat Recovery Department of Energy energy gov Retrieved 1 May 2017 Media BioAge Green Car Congress Alphabet Energy introduces PowerModules for modular thermoelectric waste heat recovery partnership with Borla for heavy duty trucks www greencarcongress com Retrieved 1 May 2017 Lu Xu Morelli Donald T 26 March 2013 Natural mineral tetrahedrite as a direct source of thermoelectric materials Physical Chemistry Chemical Physics 15 16 5762 6 Bibcode 2013PCCP 15 5762L doi 10 1039 C3CP50920F ISSN 1463 9084 PMID 23503421 Alphabet Energy goes from B to C round Articles Global University Venturing www globaluniversityventuring com Retrieved 1 May 2017 Emissions Control Technologies Faurecia North America Archived from the original on 5 August 2017 Retrieved 1 May 2017 Stabler Francis Benefits of Thermoelectric Technology for the Automobile DOE Thermoelectric Applications Workshop A B Neild Jr SAE 645A 1963 Birkholz U et al Conversion of Waste Exhaust Heat in Automobile using FeSi2 Thermoelements Proc 7th International Conference on Thermoelectric Energy Conversion 1988 Arlington USA pp 124 128 Orr B Akbarzadeh A Mochizuki M Singh R 25 May 2016 A review of car waste heat recovery systems utilising thermoelectric generators and heat pipes Applied Thermal Engineering 101 490 495 doi 10 1016 j applthermaleng 2015 10 081 Green Car Congress Thermoelectrics www greencarcongress com Retrieved 1 May 2017 Thacher E F Helenbrook B T Karri M A and Richter Clayton J Testing an automobile thermoelectric exhaust based thermoelectric generator in a light truck Proceedings of the I MECH E Part D Journal of Automobile Engineering Volume 221 Number 1 2007 pp 95 107 13 2012 10Best 10 Most Promising Future Technologies Thermal Juice Car amp Driver December 2011 Retrieved from https en wikipedia org w index php title Automotive thermoelectric generator amp oldid 1109342154, wikipedia, wiki, book, books, library,

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