Journal Title : International Journal of Modern Trends in Engineering and Science
Paper Title : SIMULATION AND EXPERIMENTAL INVESTIGATION OF LIGHT WEIGHT HELMET
Volume 04 Issue 04 2017
ISSN no: 2348-3121
Page no: 14-17
Abstract – Human life is so precious and valuable, that it should not be compromised under any cost. In a latest survey conducted, it is mentioned that nearly 62% of mortality in road accidents occur due to head injury, where the rider has not worn the helmet. It is not that people are very negligent about their lives on road, but that they experience dozens of discomfort by wearing helmets. But the most common discomfort is that, heavy sweat occurs due to excessive heat formation. This project aims to increase the thermal comfort and to reduce the weight of motorcycle helmets. From the studies it was decided to provide thermal comfort through forced convective heat transfer. A new helmet model with vents for air flow was designed using CATIA V6 and analyzed with ANSYS FLUENT software packages. Domain for air flow was created and along with the helmet, the whole merged model is meshed in ANSYS ICEM CFD software package. By setting the atmospheric condition as 30 °C temperature, 60% relative humidity, and the inlet velocity of air into the domain as 40 km/h analysis was carried out in ANSYS FLUENT 15.0. The amount of air flow into the helmet through air vents, air flow around the helmet and amount of heat dissipation taken place by forced convective heat transfer is analyzed. Here, the thermal comfort inside the helmet will be suggested by the degree of heat dissipation.
Keywords— Helmet, Light Weight, CFD, Thermal Comfort, Heat Distribution
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