Comparisons of Thermal Insulations between on Air-Cell Pack Embedded Jacket and Down Jackets

Abstract

Abstract This study investigated the thermal insulation of an air-cell pack embedded jacket and down jackets tounderstand the potential of air-cell pack as a filler for winter outdoor wear. A thermal manikin measuredthe thermal insulation of the following jackets: HD (heavy down jacket, total weight (Tw) 750g, goosedown weight (Dw) 350g), LD (light down jacket, Tw 560g, Dw 140g), AF (air-cell pack embedded jacket,Tw 490g, trunk goose down in LD was replaced to air cell), F (film jacket, Tw 469g, but removed the airin the air-cell pack from the AF), and Control (control jacket, Tw 438g, removed the air-cell pack film fromthe F). Thermal insulations of each experimental condition were measured in a static standing posture. To-tal thermal insulations (IT) were 1.29clo (HD), 1.23clo (LD), 1.16clo (AF), 1.20clo (F), and 1.08clo (Con-trol). Body regional thermal insulation was higher in the chest and back than in the abdomen and hip in allconditions. The results suggest that an economical and versatile outdoor jacket with superior thermal insula-tion will be feasible if the air volume is properly controlled in air-cell pack embedded jackets in considera-tion of regional different distribution and used in combination with film and down.Key words: Thermal insulation, Air-cell pack embedded jacket, Down jacket, Thermal manikin, Clo; 보온력, 공기주입형 재킷, 다운재킷, 써멀 마네킨, 클로