This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simulations of TEG-Based Vehicle Power System’s Impact on the Fuel Economy of Hybrid and Conventional Vehicles
Technical Paper
2016-01-0900
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
About 40% of the fuel energy in an internal combustion engine is lost as exhaust heat. Thermoelectric generators (TEGs) can recover the heat energy in the exhaust gas, improving the fuel efficiency of the vehicle and reducing emissions. In this study, a method of setting up TEG model using real testing data is proposed; model of a TEG-based vehicle power system is built; and the potential of the TEGs to improve the fuel efficiency of conventional vehicles and hybrid electric vehicles (HEVs) is examined by integrating the TEG into the vehicle power bus as a second generator. Firstly, output power model of one thermoelectric module is constructed in MATLAB/Simulink according to testing data, which is convenient and convincing. Then the model of TEG system is built using Matlab/Simulink software, taking the temperature distribution of the heat exchanger into consideration. A TEG-based vehicle power system is constructed and integrated into the vehicle model by constructing a relationship between the temperature difference and the engine speed. The vehicle simulation software ADVISOR is chosen as the vehicle simulator and simulations are carried out considering four typical driving cycles and six electrical load situations for a conventional vehicle and a parallel hybrid vehicle with the TEG-based vehicle power system. The results of the fuel consumption are compared and analyzed to quantify the fuel economy benefits and it shows that fuel economy improves in both vehicles and a larger improvement can be seen in conventional vehicle. In addition, an effort is made to identify the technological and economic barriers that might prevent automotive TEGs from becoming an acceptable means of waste heat recovery.
Recommended Content
Authors
Topic
Citation
Zheng, S. and Fan, W., "Simulations of TEG-Based Vehicle Power System’s Impact on the Fuel Economy of Hybrid and Conventional Vehicles," SAE Technical Paper 2016-01-0900, 2016, https://doi.org/10.4271/2016-01-0900.Also In
References
- Mori , M. , Yamagami , T. , Oda , N. , Hattori , M. et al. Current Possibilities of Thermoelectric Technology Relative to Fuel Economy SAE Technical Paper 2009-01-0170 2009 10.4271/2009-01-0170
- Yu , S. , Du , Q. , Diao , H. et al. Effect of vehicle driving conditions on the performance of thermoelectric generator Energy Conversion and Management 96 363 376 2015 10.3390/s140610306
- Risse , I. S. , Zellbeck , I. H. Close-coupled exhaust gas energy recovery in a gasoline engine MTZ worldwide 74 1 54 61 2013 10.1007/s38313-013-0010-y
- Crane , D. , LaGrandeur , J. , Jovovic , V. et al. TEG on-vehicle performance and model validation and what it means for further TEG development Journal of electronic materials 42 7 1582 1591 2013 10.1007/s11664-012-2327-8
- Mazar , B. State of the art prototype vehicle with a thermoelectric generator TE Application Workshop Baltimore, March 2012
- Crane , D. T. Thermoelectric Waste Heat Recovery Program for Passenger Vehicles US Department Energy Efficiency & Renewable Energy (EERE) 2012 114 121
- Shidore , N. , Vijayagopal , R. , Ickes , A. et al. Thermoelectric Generator (TEG) fuel displacement potential using engine-in-the-loop and simulation General Motors Research Laboratory 2012
- Vijayagopal , R. and Rousseau , A. Impact of TEGs on the Fuel Economy of Conventional and Hybrid Vehicles SAE Technical Paper 2015-01-1712 2015 10.4271/2015-01-1712
- Orr , B. , Akbarzadeh , A. , and Lappas , P. Reducing Automobile CO2 Emissions with an Exhaust Heat Recovery System Utilising Thermoelectric Generators and Heat Pipes SAE Technical Paper 2015-01-0051 2015 10.4271/2015-01-0051
- Liu , X. , Li , C. , Deng , Y. D. et al. An energy-harvesting system using thermoelectric power generation for automotive application International Journal of Electrical Power & Energy Systems 67 510 516 2015 10.1016/j.ijepes.2014.12.045
- Chen , J. , Yan , Z. , Wu , L. The influence of Thomson effect on the maximum power output and maximum efficiency of a thermoelectric generator Journal of applied physics 79 11 8823 8828 1996 10.1063/1.362507
- Deng Y. D. , Zheng S. J. , Su C. Q. , Yuan X. H. , Yu C. G. , Wang Y. P. Effect of Thermoelectric Modules’ Topological Connection on Automotive Exhaust Heat Recovery System Journal of electronic materials 1 11 2015 10.1007/s11664-015-4194-6
- Su , C. Q. , Zhan , W. W. , Shen , S. Thermal optimization of the heat exchanger in the vehicular waste-heat thermoelectric generations Journal of electronic materials 41 6 1693 1697 2012 10.1007/s11664-012-2095-5