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.
Original language | English |
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Title of host publication | Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) Volume VII |
Subtitle of host publication | Ergonomics in Design, Design for All, Activity Theories for Work Analysis and Design, Affective Design |
Editors | Sebastiano Bagnara, Riccardo Tartaglia, Sara Albolino, Thomas Alexander, Yushi Fujita |
Place of Publication | Cham |
Publisher | Springer |
Pages | 592-602 |
Number of pages | 11 |
Volume | VII |
ISBN (Electronic) | 978-3-319-96071-5 |
ISBN (Print) | 978-3-319-96070-8 |
DOIs | |
Publication status | Published - 2019 |
Event | IEA 2018: 20th Congress of the International Ergonomics Association - Florence, Italy Duration: 26 Aug 2018 → 30 Aug 2018 Conference number: 20 |
Publication series
Name | Advances in Intelligent Systems and Computing |
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Publisher | Springer |
Volume | 824 |
ISSN (Print) | 2194-5357 |
ISSN (Electronic) | 2194-5365 |
Conference
Conference | IEA 2018: 20th Congress of the International Ergonomics Association |
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Abbreviated title | IEA 2018 |
Country/Territory | Italy |
City | Florence |
Period | 26/08/18 → 30/08/18 |
Keywords
- Heat transfer
- Convective heat loss
- Radiative heat gain
- Thermal manikin head
- Wind tunnel
- Helmet thermal performance