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Leakage effects in car underhood aerothermal management: temperature and heat flux analysis

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Abstract

Air leakage from the engine compartment of a vehicle comes mainly from the junctions of the vehicle hood and the front end grill, the vehicle wings, the optical and the windshield. The present paper studies the thermal impact of these air leakage zones on the components of the vehicle engine compartment through temperature and heat-flux measurements. The front wheels of the test vehicle are positioned on a dynamometer and driven by the vehicle engine. The engine compartment is instrumented with almost 100 surface and air thermocouples and 20 fluxmeters of normal gradients. Measurements were made for three different thermal operating points. Five leak-sealing configurations are studied.

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Authors and Affiliations

  1. Energy and Thermo-Fluids Group ETF, School of Engineering, Lebanese International University LIU, PO Box 146404, Beirut, Lebanon

    Mahmoud Khaled & Charbel Habchi

  2. PSA Peugeot Citroën, Velizy A Center, 2 route de Gisy, 78943, Vélizy Villacoublay, France

    Fabien Harambat

  3. School of Computing and Technology, University of Sunderland, Sunderland, SR6 0DD, UK

    Ahmed Elmarakbi

  4. Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain - LIED (CNRS-UMR 8236), Univ Paris Diderot, Paris, France

    Hassan Peerhossaini

Authors
  1. Mahmoud Khaled
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  2. Charbel Habchi
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  3. Fabien Harambat
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  4. Ahmed Elmarakbi
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  5. Hassan Peerhossaini
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Corresponding author

Correspondence to Hassan Peerhossaini.

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Khaled, M., Habchi, C., Harambat, F. et al. Leakage effects in car underhood aerothermal management: temperature and heat flux analysis. Heat Mass Transfer 50, 1455–1464 (2014). https://doi.org/10.1007/s00231-014-1347-8

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  • DOI: https://doi.org/10.1007/s00231-014-1347-8

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