A 3D Printed Thermal Manikin Head for Evaluating Helmets for Convective and Radiative Heat Loss

TitleA 3D Printed Thermal Manikin Head for Evaluating Helmets for Convective and Radiative Heat Loss
Publication TypeConference Paper
Year of Publication2019
AuthorsMukunthan, S., J. Vleugels, T. Huysmans, T. Sotto Mayor, and G. De Bruyne
Conference NameProceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) Volume VII
VolumeVII
Pagination592–602
PublisherSpringer International Publishing
ISBN Number978-3-319-96070-8
KeywordsConvective heat loss, Heat transfer, Helmet thermal performance, Radiative heat gain, Thermal manikin head, Wind tunnel
Abstract

Thermal performance of three bicycle helmets for radiative and convective heat loss was evaluated through heat loss experiments in a wind tunnel. A 3D printed thermal manikin head of a 50th percentile western male population was developed. Thermal performance of a helmet was quantified by comparing the manikin head heat losses with and without helmet. Experiments were performed for two air velocities: 1.6 m/s and 6 m/s. An infrared heat lamp positioned above the manikin simulated the effect of solar load. The results from the experiments showed a convective cooling efficiency between 89{%} and 96{%} for open helmets and between 78{%} and 83{%} for closed helmets. The radiative heat gain ranged from 3.5 W to 4.5 W for open helmets and 5 W to 8 W for closed helmets.

DOI10.1007/978-3-319-96071-5_63
Research area: