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Effect of steering wheel heating system on hand thermal sensation
Gwi Taek Kim,Joo Young Jung 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.7
A numerical study is conducted to verify the effect of the steering wheel heating system for enhancing the thermal sensation of the hand. First, a numerical study was conducted to quantify the sensory index called thermal sensation. A five-layer skin model was developed, and the reliability of the model was confirmed by comparing it to previous research results. The temperature and its rate of changes for skin layers were predicted by the numerical study, while the relationship between the numerical results and the hand thermal sensation data from ISO/TS 13732-2:2001 were quantitatively analyzed. A one-dimensional unsteady heat transfer model dealing with a steering wheel was designed and developed and it was determined whether the wheel heating system is effective as an auxiliary personal heating system for electric vehicles in the cold winter. Consequentially, even a small amount of electrical energy could provide a meaningful effect to hand thermal sensation.