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An Experimental Study on the Improvement of Insulation Performance in Old University Buildings and Economic Evaluation

노후화된 대학 건물의 단열성능 향상 실험 및 경제성 평가

  • Lee, Jeongmin (Department of Mechanical and Control Engineering, Handong Global University) ;
  • So, Wonho (Department of Mechanical and Control Engineering, Handong Global University) ;
  • Cho, Kyungchan (Department of Mechanical and Control Engineering, Handong Global University) ;
  • Choi, Dongnyeok (Department of Mechanical and Control Engineering, Handong Global University) ;
  • Lee, Kwon-yeong (Department of Mechanical and Control Engineering, Handong Global University)
  • 이정민 (한동대학교 기계제어공학과) ;
  • 소원호 (한동대학교 기계제어공학과) ;
  • 조경찬 (한동대학교 기계제어공학과) ;
  • 최동녁 (한동대학교 기계제어공학과) ;
  • 이권영 (한동대학교 기계제어공학과)
  • Received : 2020.05.15
  • Accepted : 2020.08.07
  • Published : 2020.08.31

Abstract

This study examined ways of improving the internal insulation performance of aging university buildings, and to enhance the convenience of occupants in university buildings and the insulation effect of aging buildings. This research was conducted to solve the problem of continuous requests for improving the insulation performance of office workers in the Nehemiah Hall building of Handong University. The results showed that the internal temperature of Nehemiah Hall was low compared to the internal temperature of the adjacent building. Considering the characteristics of the building, the university chose insulating materials under the theme of internal insulation. The experiment was conducted by installing internal wall insulation used in the market by producing a model room that miniaturized the university professor's office. Based on the experimental results, an economic evaluation was conducted to analyze the insulation effect by measuring the heating time and actual heat transmission coefficient. An economic evaluation was conducted by experiment and theory and on a winter and summer basis. According to the research, when an Isopink (30 T) was introduced as an internal insulation material in 60 offices of Nehemiah Hall, it could save up to 1,071,600 won in total during the winter season and 109,200 won during the summer season.

본 연구는 노후화된 대학 건물의 내부 단열 성능 향상에 대한 것으로, 대학교 건물 내 재실자의 생산성을 높이고 노후화된 건물의 단열효과를 높이기 위해 진행됐다. 본 논문은 한동대학교 느헤미야홀 건물 내 오피스 재실자의 단열 성능 향상에 대한 지속적인 요청에 응답하여 문제해결을 위해 진행된 연구라는 차별성을 가지고 있으며, 내부온도가 인접건물의 내부온도와 비교했을 때 낮음을 확인하여 연구 필요성에 대한 타당성을 검증하였다. 학교라는 건물의 특성을 고려해 내외부 단열 중 내부 단열을 주제로 단열재를 선택했다. 대학교 교수 오피스를 소형화시킨 모형 방을 만들어 시장에서 사용되는 내부 벽면 단열재를 설치해 실험을 진행했다. 실험 결과를 바탕으로 가열 시간과 실제 열전달 계수를 측정하여 단열효과를 분석하는 경제성 평가를 실시했다. 경제성 평가는 실험과 이론에 의해, 겨울철과 여름철 기준으로 각각 실시되었다. 연구결과, 느헤미야홀 60 개의 오피스에 아이소핑크(30 T)를 내 단열재로 도입하였을 때, 한 달에 겨울철에는 최대 총 1,071,600 원을 절약 할 수 있으며, 여름철에는 총 109,200 원을 절약할 수 있다.

Keywords

References

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