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The Potential for Thermo-Electric Regeneration of Energy in Vehicles
Technical Paper
2009-01-1333
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The pursuit of improved fuel economy is becoming an increasingly important objective for automotive manufacturers. The field of thermo-electrics is highlighted as a promising technology. The figure of merit, Z is the primary measure of the effectiveness of a thermo-electric material, and the values now being offered by researchers have reached the level where new applications become attractive. It is feasible to consider such modules incorporated into a thermoelectric generator to recover waste heat from exhaust gas flow – an available energy stream that has traditionally been neglected as unusable. As a precursor to a costly experimental study it is desirable to accurately simulate the application of a thermo-electric system to a vehicle exhaust to understand both the feasibility and potential drawbacks.
A numerical model of a vehicle able to support transient analysis is presented Transient modelling of the exhaust flow is considered of considerable importance to the validity of the simulation study, an aspect that does not appear to have been considered in previous studies. An explicit time-marching numerical model has been developed to capture the transient performance of a thermo-electric generator. The heat exchange model is coupled with a quasi-static vehicle model to allow simulation of the effects on vehicles.
Initial studies indicate that with an output of around 1.3kW the alternator of a small passenger vehicle could be replaced.
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Citation
Stobart, R. and Milner, D., "The Potential for Thermo-Electric Regeneration of Energy in Vehicles," SAE Technical Paper 2009-01-1333, 2009, https://doi.org/10.4271/2009-01-1333.Also In
References
- Johnson, C. 2007 “Physics in an Automotive Engine” http://mb-soft.com/public2/engine.html
- Taylor, C 2004 “Tribology: Motoring into the 21st century” IMechE George Stephenson Lectures http://presidentschoice.imeche.org.uk/stephenson13.htm
- Rowe, D.M. 2006 “General Principles and Basic Considerations” Contribution to “Thermo-electrics Handbook: Macro to Nano” Rowe, D.M. 1 4 Taylor and Francis
- Vedernikov M.V. Jordanishvili E.K 1998 “A.F.Ioffe and Origin of Modern Semiconductor Thermoelectric Energy Conversion” Proceedings of the 17th International Conference on Thermoelectrics 1998
- Sharp, J. 2003 “Some properties of Ge-Te based thermoelectric alloys” http://ieeexplore.ieee.org/iel5/9049/28702/01287500.pdf?arnumber=1287500
- Hsu, K.F. et. al. 2003 “Cubic AgPb m SbTe2_ m : Bulk Thermoelectric Materials with High Figure of Merit”.” Science Magazine 303 2004 818 821
- Poudel, B. Hao, Q. et. al. 2008 “High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys” Science 320 5876 634 638 http://www.sciencemag.org/cgi/content/abstract/1156446
- Uher, C. “Skutterudite-Based Thermoelectrics” Contribution to “Thermoelectrics Handbook: Macro to Nano”
- Tritt, T. 2002 “Thermoelectric Materials: Principles, Structure, Properties, and Applications” http://virtual.clemson.edu/groups/tmrl/Publications/PDFS/teoverview.pdf
- http://www.thermoelectrics.caltech.edu
- Rogl, P. “Formation and Crystal Chemistry of Clathrates” “Thermoelectrics Handbook: Macro to Nano” Rowe, D.M.
- Nolas, G.S. “Structure, Thermal Conductivity, and Thermoelectric Properties of Clathrate Compounds” “Thermoelectrics Handbook: Macro to Nano” Rowe, D.M.
- Hicks, L.D Dresselhaus, M.S. 1993 “Effect of Quantum Well Structures on Thermoelectric Figure of Merit” Phys. Rev.B 47 12727 12731 http://link.aps.org/abstract/PRB/v47/p12727
- Hicks, L.D Dresselhaus, M.S. 1993 “Thermoelectric Figure of Merit of a One-Dimensional Conductor” Phys. Rev. B 47 16631 16634 1993 http://link.aps.org/abstract/PRB/v47/p16631
- Jovanovic, V. Ghamaty, S. Elsner, N 2006 “Design, fabrication and testing of quantum well thermoelectric generator” Proceedings of the Tenth Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronics Systems http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1645511
- Ghamaty, S. Elsner, N 2007 Si/Si-Ge Quantum Well Thermoelectric Materials and Devices for Waste Heat Recovery from Vehicles and Industrial Plants” Proceedings of the International Symposium on Nano-Thermoelectrics Osaka June 2007 http://www.hi-z.com/papers/2007QWJapanesePaper.pdf
- Fairbanks, J. 2006 “Thermoelectric Developments for vehicular Applications” Proceedings of DEER 2006 http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2006/session6/2006_deer_fairbanks.pdf
- Goldsmid, H.J. “An New Upper Limit to the Thermoelectric Figure of Merit” “Thermoelectrics Handbook: Macro to Nano Rowe, D.M.
- http://www.hi-z.com
- http://www.tellurex.com
- http://www.melcor.com
- Crane, D 2007 “Development of a Scalable 10% Efficient Thermo-electric Generator” Proceedings of the 2007 Diesel Engine-Efficiency and Emissions Research conference http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2007/session6/deer07_crane.pdf
- Krommenhoek, H. 2005 “High-Efficiency Quantum-Well Thermo-electrics for Waste Heat Power Generation” Presentation to DEER conference 2005 http://www.eere.energy.gov/vehiclesandfuels/pdfs/deer_2005/session6/2005_deer_krommenhoek.pdf
- Guzzella, L. Onder, C “Introduction to Modelling and Cotnrol of Internal Combustion Engine Systems” 64 Published by Springer
- Denton, T. 2004 “Automobile Electrical and Electronic Systems” Third Edition 129 Elsevier Butterworth-Heinemann
- Rosth, M 2007 “Hydraulic Power Steering System Design in Road Vehicles” Linkoping University, Department of Management and Engineering http://www.ep.liu.se/abstract.xsql?dbid=8186 th
- Cengel, Y. 2003 “Heat Transfer – A Practical Approach” 441 Published by McGraw-Hill
- Department for Transport 2007 “Transport Statistics Great Britain: 2007 Edition” 169
- http://www.cfit.gov.uk/docs/2001/scot0122/scot0122/02.htm