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    A benchmark analysis of subcooled heat transfer in a novel half-unit-cylinder-head for verifying in-vehicle engine evaporative cooling under dynamic conditions

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    Authors
    Langari, Mostafa
    Dunne, Julian F.
    Jafari, Soheil
    Pirault, Jean-Pierre
    Yang, Zhiyin cc
    Long, Chris A.
    Thalackottore Jose, Jisjoe
    Affiliation
    University of Sussex
    University of Derby
    Issue Date
    2017-05-17
    
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    Abstract
    Evaporative cooling (EC) is a potentially attractive method of thermal management in highly downsized engines. As a benchmark for robust EC system development, a novel half-unit-cylinder-head has been designed to study the heat transfer achievable with evaporative cooling strategies under realistic hot metal conditions with an appropriate coolant flow field. Multi-phase computational fluid dynamics (CFD) and conjugate heat transfer (CHT) analysis are performed under subcooled flow boiling conditions to achieve both the design requirements for the hot-side surfaces and the specification of heating arrangements. Analysis is undertaken to ensure that thermal diffusion and flow conditions are representative of coolant flow in highly-boosted IC engines. The CFD model predictions show good correlation with available experimental data for both heat flux and metal temperatures in a typical downsized pressure-charged spark-ignition engine cylinder head.
    Citation
    Langari, M. et al (2017) 'A benchmark analysis of subcooled heat transfer in a novel half-unit-cylinder-head for verifying in-vehicle engine evaporative cooling under dynamic conditions', Vehicle Thermal Management Systems Conference Proceedings (VTMS13), ILEC Conference Centre, London, 17 - 18 May.
    Journal
    Vehicle Thermal Management Systems Conference Proceedings (VTMS13)
    URI
    http://hdl.handle.net/10545/621622
    Additional Links
    http://events.imeche.org/ViewEvent?code=CON6389
    Type
    Meetings and Proceedings
    Language
    en
    Collections
    Department of Mechanical Engineering & the Built Environment

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