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J. KIMS Technol > Volume 22(5); 2019 > Article
Journal of the Korea Institute of Military Science and Technology 2019;22(5):644-653.
DOI: https://doi.org/10.9766/KIMST.2019.22.5.644   
Variation of Human Thermal Radiation Characteristics Applying Different Clothing Materials
Injoong Chang, Ji-Yeul Bae, Namkyu Lee, Hwykuen Kwak, Hyung Hee Cho
1Department of Mechanical Engineering, Yonsei University
2The 4th Research and Development Institute, Agency for Defense Development
3Hanwha Systems
의복 소재 변경에 따른 인체 열상신호 변화 특성
장인중, 배지열, 이남규, 곽휘권, 조형희
1연세대학교 기계공학부
2국방과학연구소 제4기술연구본부
3(주)한화시스템
Abstract
With the development of themal observatory device(TOD), thermal camouflage system has been applied not only to the weapon system but also to the combat suit for soldiers. In this paper, the characteristic of thermal radiation of human body depending on the clothing material properties was analyzed through numerical simulations. The bioheat equation with thermoregulatory model was solved to obtain the realistic surface temperature of human body and these results are combined with the emissivity of human skin and clothing in order to calculate the thermal signature from the human body. According to each thermal resistance of clothing, the optimal background radiance which makes contrast radiance intensity(CRI) be lowest is different. Also, the average CRI variation per thermal resistance change is about twice as much as the case of evaporative resistance change.
Key Words: Human Thermal Signature, Clothing Properties, Thermoregulation, Numerical Analysis


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