Abstract Waste heat recovery represents a promising way to improve the utilisation of primary energy of modern internal combustion engines in order to increase overall efficiency. In thermodynamic analyses so-called Organic Rankine Cycles (ORC) have proven to be particularly suited for this application. The implementation of an ORC system in an automotive application requires new development of key system components necessitated by the low thermal power loss and the small installation space. In addition, a powerful tool for evaluation and optimisation of the ORC system components is required since automobile manufacturers propose market introduction of automotive ORC systems in 2018. Providing experimental validation options is highly relevant. As a consequence, Kratzer Automation AG has designed and built an ORC component test bench for experimental investigations within the framework of the development of an expansion machine for the utilisation of an automotive waste energy recovery system at the TFD of Leibniz University Hanover. The aim of this paper is to describe the design, construction, and commissioning of an Organic Rankine Cycle (ORC) test bench for expansion machines that meets the special demands for vehicle application in the future. The derivation of the technical key data and the determination of thermodynamic boundary conditions, i.e. the chosen media for the various expansion machines, are therefore described in detail as is the safety concept for the test bench. Regular maintenance and adaptation of the system is indispensable when used in laboratory operation. Therefore, a concept is described that deals with explosive non-certified prototypes within the safety infrastructure of the main test bench.


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    Title :

    Design and development of a component test bench for the investigation of automotive ORC systems


    Contributors:
    Mai, Holger (author) / Nascimento, D. (author) / Rätz, H. (author) / Kunte, H. S. (author) / Willers, O. (author) / Seume, J. S. (author) / Weigl, S. (author)


    Publication date :

    2016-01-01


    Size :

    20 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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