To practically apply thermoelectric technology in commercial use, improved performance in thermoelectric materials are said to be necessary in general. However, there is no frame of reference that illustrates how far away from optimal performance a material may be, nor is there any information indicating outstanding issues or possible applicable approaches that could improve system performance other than improvement in performance of thermoelectric. Application of thermoelectric in automobiles should require special design philosophy compared to general applications, but there is not enough information pointing out these special requirements. To determine essential elements in thermoelectric technology to be used specifically for automobile heat recovery applications, we have evaluated the effect of a thermoelectric system on fuel economy adopting commercially available thermoelectric materials and typical industrial techniques using a 2.0-liter midsize gasoline vehicle as a study case. From our investigation, only very modest improvements in fuel economy were ascertained under various drive cycles, LA4, SC03, HWY, and US06. Essential elements of the thermoelectric heat recovery system that were identified included improvements to the performance of the thermoelectric materials at working temperatures, heat exchanger, and joint technique of elements to build module, along with realization that effort will be needed to obtain higher exhaust temperature without reducing efficiency of engine. In addition, from an application point of view, significant differences in CO2 emissions were found between the different types of vehicles investigated.


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    Titel :

    Current Possibilities of Thermoelectric Technology Relative to Fuel Economy


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE World Congress & Exhibition ; 2009



    Erscheinungsdatum :

    2009-04-20




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Current possibilities of thermoelectric technology relative to fuel economy

    Mori,M. / Yamagami,T. / Oda,N. et al. | Kraftfahrwesen | 2009


    Fuel-Economy Possibilities of Otto-Cycle Aircraft Engines

    Hersey, D. S. | SAE Technical Papers | 1939


    Passenger car fuel economy and relative energy consumption

    Luchter,S. / Natl.Highw.Traffic Saf.Adm.,US | Kraftfahrwesen | 1978


    Passenger Car Fuel Economy and Relative Energy Consumption

    Luchter, Stephen | SAE Technical Papers | 1978