Effects of clothing size and air ventilation rate on cooling performance of air ventilation clothing in a warm condition.

Effects of clothing size and air ventilation rate on cooling performance of air ventilation clothing in a warm condition. Int J Occup Saf Ergon. 2020 Apr 29;:1-29 Authors: Yang J, Wang F, Song G, Li R, Udayraj Abstract Effects of clothing size and air ventilation rate on cooling performance of three air ventilation jackets (size: S, M and L) were investigated. Two ventilation rates were chosen: low ventilation (LV, 12 L/min) and high ventilation (HV, 20 L/min). A significant difference in the dry heat loss at UBody (i.e., upper body excluding the head and hands) was noted among three sizes (p < 0.05). Ventilation rate significantly increased the total UBody heat loss and thereby reduced the UBody's apparent evaporative resistance (p < 0.05). Clothing size showed varied impact on the UBody heat loss and the impact varied with air ventilation rates. Air ventilation could greatly reduce predicted core temperatures, mean skin and UBody temperatures in both S and L. In contrast, clothing size had almost no impact on predicted thermophysiological responses in HV. This work may be useful for designing and improving high performance air ventilation clothing. PMID: 32345151 [PubMed - as supplied by publisher]
Source: International Journal of Occupational Safety and Ergonomics - Category: Occupational Health Tags: Int J Occup Saf Ergon Source Type: research