NUMERICAL ANALYSIS OF THE HELMET EFFECT ON SOLAR RADIATION AND TEMPERATURE REDUCTION TO AVOID BRAIN STROKE

The research explores the link between solar radiation exposure, brain temperatures, and stroke risk. It highlights the importance of understanding the effects of solar radiation on human health, particularly neurological well-being, due to rising global temperatures. The materials manufactured for the helmet are taken from two layers to improve the thermal insulation of the brain by wearing a helmet. The first layer-representing fiberglass, which is where the value of the conduction coefficient for this layer is 0.363 W/m∙ ℃ . The second layer represents the cotton wrapped for the inner layer of the helmet, which has a thermal conductivity value of 0.026 W/m∙℃, which is a good heat insulator. Human hair is also an insulator for the heat applied to it, as a layer of hair was made simulating the real state with a thermal conductivity coefficient of 0.37 W/m∙℃, and the height of the hair is 1 cm. The human head’s back region experiences higher temperatures, reaching 49.31 ℃ due to heat transfer between the head and brain surface. This affects facial bones and internal organs. Helmets help reduce head temperatures by reflecting and dissipating solar radiation. © School of Engineering,

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Ass.Prof.Dr.Wajeeh Kamal Hasan

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