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Latent Heat Loss of a Virtual Thermal Manikin for Evaluating the Thermal Performance of Bicycle Helmets

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Advances in Human Factors in Simulation and Modeling (AHFE 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 780))

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Abstract

Thermal performance of three bicycle helmets for latent heat loss was evaluated through a virtual testing methodology using Computational fluid dynamics (CFD) simulations. The virtual thermal manikin was prescribed with a constant sweat rate of 2 g/h and a constant sweat film thickness of 0.3 mm. The simulations were carried out at 6 m/s until convergence was achieved. The results from steady state simulations show heat loss of 158 W from manikin without helmet and approximately 135 W with helmets. However, the thermal performance of helmets with a sweating manikin has been reduced from 89–93% to 84–87%. These results imply that evaporative/latent heat loss plays a significant role in thermal performance of helmets. Therefore, thermal performance tests for helmets should also include testing of helmets for evaporative heat loss.

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Author information

Authors and Affiliations

  1. Product Development, Faculty of Design Sciences, University of Antwerp, Ambtmanstraat 1, 2000, Antwerp, Belgium

    Shriram Mukunthan, Jochen Vleugels & Guido De Bruyne

  2. Vision Lab, Department of Physics, University of Antwerp (CDE), Universiteitsplein 1, 2610, Antwerp, Belgium

    Toon Huysmans

  3. Applied Ergonomics and Design Department of Industrial Design, Delft University of Technology, Landbergstraat 15, 2628 CE, Delft, The Netherlands

    Toon Huysmans

  4. Lazer Sport NV, Lamorinierestraat 33-37 bus D, 2018, Antwerp, Belgium

    Guido De Bruyne

Authors
  1. Shriram Mukunthan
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  2. Jochen Vleugels
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  3. Toon Huysmans
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  4. Guido De Bruyne
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Corresponding author

Correspondence to Shriram Mukunthan .

Editor information

Editors and Affiliations

  1. U.S. Army Research Laboratory, Aberdeen Proving Ground, MD, USA

    Daniel N. Cassenti

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Mukunthan, S., Vleugels, J., Huysmans, T., De Bruyne, G. (2019). Latent Heat Loss of a Virtual Thermal Manikin for Evaluating the Thermal Performance of Bicycle Helmets. In: Cassenti, D. (eds) Advances in Human Factors in Simulation and Modeling. AHFE 2018. Advances in Intelligent Systems and Computing, vol 780. Springer, Cham. https://doi.org/10.1007/978-3-319-94223-0_7

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