열섬 효과 저감 및 건물 에너지 요구량 절감을 위한 PCM (Phase Change Material) 적용 쿨루프 시스템 축소 모형 실험 연구

• Published in: KIEAE Journal Vol. 19; no. 4; pp. 45 - 52
• Main Authors: 방선규(Sun Kyu Bang), 박진철(Jin Chul Park), 정민희(Min-Hee Chung)
• Format: Journal Article
• Language: Korean
• Published: 한국생태환경건축학회 01.08.2019
• Subjects: 건축공학; Urban Heat Island; Thermal Performance; 건물 에너지 절감; 쿨루프; 열성능; 상변화물질; Building Energy Saving; 도시열섬현상; Phase Change Material; Cool Roof
• ISSN: 2288-968X; 2288-9698
• DOI: 10.12813/kieae.2019.19.4.045

Purpose: To reduce GHG(Green House Gases) emissions and heat island effect, there are numerous studies have been conducted. The temperature on heat island is usually 3∼5℃ higher than in the surrounding rural areas and it causes additional cooling load and discomfort. For this reason, this study was a partial experiment of developing a roof system using phase change materials combined to wood-plastic combination plate. In this study, the purpose of the experiment was to verify the suitable condition of roof surface structure for using PCM cool roof system. Method: The experiment of six cases had proceeded with four-step artificial solar radiation system in artificial environment room. There are two different reflectance(Cool Roof Paint-0.47, Gray Paint-0.22) and three PCM(Melting point 24℃, 35℃, 44℃) for scale model test. Result: The temperature of three locations was measured to check the correlation between structures. The average temperature reduction according to surface reflectance was 14.8℃(surface) / 13.3℃(PCM) / 4.6℃(ceiling). Furthermore, the average peak load time-lag between surface to ceiling was 3hour 49min. KCI Citation Count: 1