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논문 기본 정보

자료유형
학술저널
저자정보
김재영 (서울대학교) 최정화 (서울대학교)
저널정보
한국생활환경학회 한국생활환경학회지 한국생활환경학회지 제16권 제6호
발행연도
2009.12
수록면
648 - 657 (10page)

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The purpose of this study was to develop and evaluate the efficiency of jumper-style uniform for the workers in freezer storages. The experimental environment was simulated as ?20±1℃ in freezer storage and +13±1℃ in rest room. Five males participated as subjects, and the thermo-physiological responses were measured in three jumpertype uniform experiments: 1) Control jumper: breathable water proof fabric + PET padding + PET lining, 2) Developed Jumper A: breathable water proof fabric + Hollow Fiber padding + PCM coated PET lining, 3) Developed Jumper B: breathable water proof fabric + Hollow Fiber padding + PCM coated and Aluminium quilted lining. As a result of the tests, rectal temperature (T<SUB>re</SUB>) became lower as the experimental times went by, T<SUB>re</SUB> became higher in freezer storage and became lower in rest room. T<SUB>re</SUB> in Jumper A had gentler down slope than in Control and B jumper. Mean skin temperature (T<SUB>sk</SUB>) also became lower as the experimental times went by, and Tsk was directly influenced by the environment temperatures. Tsk in Jumper A had gentler down slope than in Control and B jumpers. Clothing microclimate temperatures (T<SUB>clo</SUB> of the chest, back, jumper) were higher in jumper A, but, Clothing microclimate Humidity (H<SUB>clo</SUB> of the chest, back, jumper) were higher in jumper B. Heart rate (HR) became lower as the experimental times went by, HR of Jumper A had the gentler down slope than those of Control and B jumpers. From the subjective responses on thermal sensation, degree of satisfaction and thermal comfort, in most of the parts, jumper B generated the lowest degree, that meant colder feeling than those in other two jumpers. It can be concluded that the jumper A was more effective in freezer storage than Jumper B. It is estimated that aluminium quilted lining of jumper B had two negative aspects for protecting against the cold. 1) Freezing the insensible perspiration in the jumper in the condition of below zero (℃), 2) the higher thermal conductivity of aluminium than those of air and water.

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UCI(KEPA) : I410-ECN-0101-2010-590-001663670