Earticle

초록

영어

In this study, an accelerated weathering test was performed to examine the variation of thermal insulation performance according to the service life. A widely used class 1 thermal screen (matt georgette + polyethylene (PE) foam + chemical cotton + felt + matt georgette) was selected as the target thermal screen. The ultraviolet irradiation that reached the target thermal screen specimen (60 x 60cm) was 5mW/cm2. Thus, the ultraviolet irradiance was set to 5mW/cm2, and the exposure periods of accelerated weathering conditions on the specimens were set to 0, 282, 847, and 1412h. The radiation exposure periods of the weathering conditions for 0, 282, 847, and 1412h indicate the amount of ultraviolet accumulation for 0, 1, 3, and 5years, respectively. In the accelerated weathering test, the target specimens that completed each exposure phase were subjected to the hotbox test to analyze their thermal insulation performances. Consequently, the thermal insulation performance of the multi-layer thermal screen was estimated to degrade rapidly after approximately two years. In the accelerated weathering condition, a quadratic function model was used to calculate the expected service life, since it adequately described the variation in thermal insulation of the thermal screen according to time. The results showed that when the thermal insulation performance degraded by 5, 10, 20, and 30%, the expected service lives were 2.5, 3.3, 4.5, and 5.5years, respectively.

목차

ABSTRACT
1. 서론
2. 촉진내후성시험
2.1 대상 다겹보온자재
2.2 촉진내후성시험장치 제작 및 구성
2.3 시험방법
2.4 다겹보온자재의 보온성능 측정
3. 사용기간에 따른 다겹보온자재의 보온성능 변화
3.1 광 노출시간별 다겹보온자재의 Hot box 내부 온도하강율
3.2 광 노출시간별 다겹보온자재의 열관류율
3.3 광 노출시간별 다겹보온자재의 열전도저항
4. 결론
후기
References

키워드

저자

• 윤성욱 [ Sung-Wook Yun | Agricultural Researcher, National Institute of Agricultural Science, RDA ]
• 최덕규 [ Duk-Kyu Choi | Agricultural Researcher, National Institute of Agricultural Science, RDA ]
• 이시영 [ Si-Young Lee | Member, Agricultural Researcher, National Institute of Agricultural Science, RDA ] Corresponding Author
• 권진경 [ Jin-Kyung Kwon | Agricultural Researcher, National Institute of Agricultural Science, RDA ]
• 김형권 [ Hyeong-Kwon Kim | Agricultural Researcher, National Institute of Agricultural Science, RDA ]
• 문종필 [ Jong-Pil Moon | Agricultural Researcher, National Institute of Agricultural Science, RDA ]
• 장재경 [ Jae-Kyoung Jang | Agricultural Researcher, National Institute of Agricultural Science, RDA ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620