Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Predicting Influence of Changes in Indoor Air Temperature and Humidity of Wooden Cultural Heritages by Door Opening on Their Conservation Environment

개방에 따른 실내 온습도 변화가 목조문화재 보존환경에 미치는 영향 예측

  • Kim, Min-Ji (BK21 Plus Eco-Leader Education Center, Korea University) ;
  • Shin, Hyun-Kyeong (Division of Wood Engineering, Department of Forest Products, Korea Forest Research Institute) ;
  • Choi, Yong-Seok (Division of Wood Engineering, Department of Forest Products, Korea Forest Research Institute) ;
  • Kim, Gwang-Chul (Department of Housing Environmental Design, College of Human Ecology, Chonbuk National University) ;
  • Kim, Gyu-Hyeok (Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University)
  • 김민지 (BK21 Plus 기후환경변화 적응을 위한 에코리더 양성사업단) ;
  • 신현경 (국립산림과학원 임산공학부 재료공학과) ;
  • 최용석 (국립산림과학원 임산공학부 재료공학과) ;
  • 김광철 (전북대학교 생활과학대학 주거환경학과) ;
  • 김규혁 (고려대학교 생명과학대학 환경생태공학부)
  • Received : 2015.06.22
  • Accepted : 2015.11.02
  • Published : 2015.11.25
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Abstract

This study was conducted to predict the effect of door opening in wooden cultural heritages (WCHs) on their conservation environment. For this prediction, measured relative humidity (RH) and surface wood moisture content (MC) of inner part of wood columns in open wooden building and neighboring closed wooden building were compared with minimum RH, including the duration of minimum RH, and MC required for spore germination and resultant growth of wood-degrading fungi reported in some literatures. Moisture conditions, namely RH of inside wooden building and MC of wood was unsuitable for decay and sap-stain fungi all the year round; however, moisture conditions during summer season was suitable for spore germination and resultant growth of surface mold fungi, regardless of door opening. When compared, the duration of minimum (75%) or higher RH and the number of wood columns with MC level greater than the minimum MC (15%) during summer season, the surface mold related to the conservation environment of inside wooden building was somewhat better in open building than in closed building. Rather, doors should be opened in closed building for reducing indoor RH as a necessary measure during summer season when outdoor RH is high.

1년간 측정된 개방 및 인접 비개방 전각의 실내 온습도 및 목재 기둥 내측의 표면함수율을 문헌조사를 통해 확인된 목재 가해균류 포자 발아와 생육이 가능한 최소 온습도(최소 습도의 지속기간 포함)와 목재 함수율과 비교하는 간접적인 방법으로 전각 개방이 전각 내부 보존환경에 미치는 영향을 예측하였다. 개방 여부에 관계없이 연중 전각 내부의 온습도 및 목재 함수율 조건은 부후균과 변재변색균의 생육에는 부적절하였으나 장마철이 포함된 여름철 전각 내부의 온습도 및 목재 함수율 조건은 표면오염균의 생육에 적절하였다. 표면오염균 생육을 위한 상대습도 및 목재 함수율 조건, 즉 실내 상대습도가 75% 이상으로 상승한 후 지속되는 기간과 목재 기둥 내측의 표면함수율이 15% 이상으로 상승되는 총 일수를 비교할 때, 전각 내부의 표면오염균 관련 보존환경은 개방 전각이 비개방 전각에 비해 다소 우수하다고 할 수 있다. 오히려 비개방 전각의 경우, 외기 상대습도가 높아지는 여름철에는 전각 내부의 상대습도를 낮추기 위해 문을 개방할 필요가 있다고 사료된다.

Keywords

References

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