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    An experimental and modelling study of a 1 kW organic Rankine cycle unit with mixture working fluid

    Access Status
    Fulltext not available
    Authors
    Jung, Hyung-Chul
    Taylor, L.
    Krumdieck, S.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Jung, H. and Taylor, L. and Krumdieck, S. 2015. An experimental and modelling study of a 1 kW organic Rankine cycle unit with mixture working fluid. Energy. 81: pp. 601-614.
    Source Title
    Energy
    DOI
    10.1016/j.energy.2015.01.003
    ISSN
    0360-5442
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/12818
    Collection
    • Curtin Research Publications
    Abstract

    The ORC (organic Rankine cycle) technology is appropriate for conversion of low-grade industrial waste heat to electrical power due to its utilization of volatile organic fluids as working fluids. It has been proposed that zeotropic fluid mixtures can improve the ORC performance compared to pure fluids. The purpose of this paper was to demonstrate the feasibility of using a zeotropic mixture as working fluid through an experimental study with a lab-scale ORC (organic Rankine cycle) test rig. In this study, a zeotropic mixture of R245fa and R365mfc (48.5%/51.5% on a mole basis) was examined by focusing on its dynamic behavior in the system until reaching steady state and the performance in a scroll expander, a finned-tube heat extractor, an evaporator and a condenser. The test rig used the exhaust gas from a 30 kW Capstone™ Gas Turbine as its heat source. Computer simulation was conducted at system level with steady state conditions and the results were compared to experimental data.

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