국산재 합판을 코어재로 사용한 교차집성재(CLT) 적용 목조주택의 냉·난방에너지 요구량 분석 (Analysis of Cooling and Heating Energy Demands of Wooden Houses with Cross-laminated Timber (CLT) Using Domestic Plywood as Core Materials)

서지정보

· 발행기관 : 한국생활환경학회
· 수록지 정보 : 한국생활환경학회지 / 24권 / 6호 / 752 ~ 759페이지
· 저자명 : 장성진, 위승환, 이종기, 이화영, 조현미, 김수민

초록

Cross-laminated timber (CLT) is a structural timber developed for low-grade timber utilization. This studyanalyzed the thermal properties of Ply-lam CLT using Korean plywood as a core material of CLT and analyzed thecooling and heating energy demands of wooden house with Ply-lam CLT. The thermal conductivity of Ply-lam CLTwas measured by TCi thermal conductivity measurement equipment. The overall thermal conductivity of the five-layerPly-lam CLT was calculated using KS M ISO 6946. The cooling and heating energy demands of the wooden houseswith Ply-lam CLT were analyzed using Passive House Planning Package (PHPP), a building energy analysis programbased on ISO 13790. The thermal conductivity of Ply-lam CLT was lower than that of existing CLT consisting offive-layered larch. In addition, it was confirmed that the heat insulating performance of CLT can be further improvedaccording to the application site and thickness of the plywood board. The CLT applied wall reduces the cooling andheating energy demands because of reduce the thermal bridge and infiltration in the wall. Finally, considering both theamount of cooling and heating energy demand reduction and the wall thickness increase, it is considered that the wallwith the passive house level (0.15 W/m2K) applied the Ply-lam CLT board is most suitable among 7 wall cases.

영어초록

Cross-laminated timber (CLT) is a structural timber developed for low-grade timber utilization. This studyanalyzed the thermal properties of Ply-lam CLT using Korean plywood as a core material of CLT and analyzed thecooling and heating energy demands of wooden house with Ply-lam CLT. The thermal conductivity of Ply-lam CLTwas measured by TCi thermal conductivity measurement equipment. The overall thermal conductivity of the five-layerPly-lam CLT was calculated using KS M ISO 6946. The cooling and heating energy demands of the wooden houseswith Ply-lam CLT were analyzed using Passive House Planning Package (PHPP), a building energy analysis programbased on ISO 13790. The thermal conductivity of Ply-lam CLT was lower than that of existing CLT consisting offive-layered larch. In addition, it was confirmed that the heat insulating performance of CLT can be further improvedaccording to the application site and thickness of the plywood board. The CLT applied wall reduces the cooling andheating energy demands because of reduce the thermal bridge and infiltration in the wall. Finally, considering both theamount of cooling and heating energy demand reduction and the wall thickness increase, it is considered that the wallwith the passive house level (0.15 W/m2K) applied the Ply-lam CLT board is most suitable among 7 wall cases.

참고자료

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