A Thermal Test System for Helmet Cooling Studies†
AbstractOne 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.
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Fitzgerald, S.; Atkins, H.; Leknys, R.; Kelso, R. A Thermal Test System for Helmet Cooling Studies. Proceedings 2018, 2, 272.
Fitzgerald S, Atkins H, Leknys R, Kelso R. A Thermal Test System for Helmet Cooling Studies. Proceedings. 2018; 2(6):272.Chicago/Turabian Style
Fitzgerald, Shaun; Atkins, Henry; Leknys, Ryan; Kelso, Richard. 2018. "A Thermal Test System for Helmet Cooling Studies." Proceedings 2, no. 6: 272.
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