Experimental Studies on the Cooling of Helmet Retrofitted with a Phase Change Material Fabric

Experimental Studies on the Cooling of Helmet Retrofitted with a Phase Change Material Fabric

Tso C.P. Tan F.L. 

Nanyang Technological University, School of Mechanical and Aerospace Engineering, 50 Nanyang Avenue, Singapore 639798, Singapore

Page: 
57-62
|
DOI: 
https://doi.org/10.18280/ijht.310108
Received: 
N/A
|
Accepted: 
N/A
|
Published: 
30 June 2013
| Citation

OPEN ACCESS

Abstract: 

A novel design of a phase change material (PCM) helmet is reported where a PCM-polyurethane foam fabric is used. The fabric, comprising 37% of paraffinic PCM with melting temperature at 35°C, is lined on the interior walls of a motorcycle helmet directly in contact with the head. The experimental tests on the performance of the PCM helmet to cool the head are carried out in a wind tunnel at different speeds of air flow over the helmet. A heating mat is used to simulate the heat generation of the head. Results show that air flow has insignificant effects to the helmet cooling, whereas the heat generation rate has a large impact on the cooling performance. The helmet is also tested with different number of PCM fabric layers. The PCM fabric can be retro-fitted to existing helmets.

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