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Proceedings 2018, 2(6), 272; https://doi.org/10.3390/proceedings2060272

A Thermal Test System for Helmet Cooling Studies

School of Mechanical Engineering, the University of Adelaide, Adelaide 5005, Australia
Presented at the 12th Conference of the International Sports Engineering Association, Brisbane, Queensland, Australia, 26–29 March 2018.
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Published: 13 February 2018
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Abstract

One of the primary causes of discomfort to both irregular and elite cyclists is heat entrapment by a helmet resulting in overheating and excessive sweating of the head. To accurately assess the cooling effectiveness of bicycle helmets, a heated plastic thermal headform has been developed. The construction consists of a 3D-printed headform of low thermal conductivity with an internal layer of high thermal mass that is heated to a constant uniform temperature by an electrical heating element. Testing is conducted in a wind tunnel where the heater power remains constant and the resulting surface temperature distribution is directly measured by 36 K-type thermocouples embedded within the surface of the head in conjunction with a thermal imaging camera. Using this new test system, four bicycle helmets were studied in order to measure their cooling abilities and to identify ‘hot spots’ where cooling performance is poor.
Keywords: thermal comfort; bicycle helmets; human mannequin; cycling thermal comfort; bicycle helmets; human mannequin; cycling
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Fitzgerald, S.; Atkins, H.; Leknys, R.; Kelso, R. A Thermal Test System for Helmet Cooling Studies. Proceedings 2018, 2, 272.

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