Abstract A relatively new approach for improving fuel economy and automotive engine performance involves the use of automotive combined cycle generation technologies. The combined cycle generation, a process widely used in existing power plants, has become a viable option for automotive applications due to advances in materials science, nanotechnology, and MEMS (Mico-Electro Mechanical Systems) devices. The waste heat generated from automotive engine exhaust and coolant is a feasible heat source for a combined cycle generation system, which is basically a Rankine cycle in the context of this study. However, there are still numerous technical issues that need to be solved before the technology can be implemented in automobiles. A simulation was performed to examine the amount of waste energy that could be recovered through the use of a combined cycle system. A simulation model of the Rankine cycle was developed using Cycle-Tempo software. The simulation model was ultimately used to evaluate the rate of waste heat recovery and the consequential increase in the overall thermal efficiency of the engine with the combined cycle generation system under typical engine operating conditions. The most effective automotive combined cycle system recovered 68% of the waste heat from the exhaust and coolant, resulting in a 6% improvement in engine efficiency. The results are expected to be beneficial for evaluating the feasibility of combined cycle generation systems in automotive applications.


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    Title :

    Viable combined cycle design for automotive applications


    Contributors:
    Kim, K. -B. (author) / Choi, K. -W. (author) / Lee, K. -H. (author)


    Publication date :

    2012




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Classification :

    BKL:    55.20$jStraßenfahrzeugtechnik / 55.20 Straßenfahrzeugtechnik



    Viable combined cycle design for automotive applications

    Kim, K. B. / Choi, K. W. / Lee, K. H. | British Library Online Contents | 2012


    Viable combined cycle design for automotive applications

    Kim, K. -B. / Choi, K. -W. / Lee, K. -H. | Springer Verlag | 2012



    Automotive Engines-A Viable Alternative for Aircraft

    Camden, John T. | SAE Technical Papers | 1977