Work machines perform a variety of work cycles of which many are theoretically zero energy processes (lifting/lowering, acceleration/deceleration). This feature offers a possibility to recover at least some of the released potential/kinetic energy during the lowering/deceleration phase and reuse it in order to reduce the need for external energy. The recovered energy can be stored in several ways, in mechanical components (e. g. flywheel). in hydraulic components (hydraulic accumulator) or in electric components (e. g. battery) which all have their advantages and disadvantages. When comparing the characteristics of these components one must also keep in mind that every energy conversion induces losses and therefore the number of conversions should be minimized. This paper presents four different energy setups for a hypothetical hydraulically operated truck and compares them by means of simulations. The reductions in energy consumption with regenerative systems compared to the original system were found to be from 10 to 30 percent, depending on system configuration. The best system was the System which included a hydraulic transformer and accumulator. The energy consumption of this system was found to be 27 % smaller than the consumption of the reference system.


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    Titel :

    Comparing hybrid power transmission systems of work machines


    Beteiligte:
    Hänninen, Henri (Autor:in) / Juhala, Jyri (Autor:in) / Sinkkonen, Antti (Autor:in) / Hentunen, Ari (Autor:in) / Pietola, Matti (Autor:in)


    Erscheinungsdatum :

    2010


    Format / Umfang :

    12 Seiten, 6 Bilder, 2 Tabellen, 4 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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