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2021 Vol.15, Issue 1 Preview Page

Research Article

Investigation of Heating Energy Reduction Performance by Supplementary Insulation for Condensation Prevention in Apartment Buildings

공동주택 결로 방지 보조 단열재의 난방 에너지 저감 성능 분석

Mi-Su Shin1
,
Kyu-Nam Rhee2†
신 미수1
,
이 규남2†
1Lecturer, Department of Architectural Engineering, Pukyong National University, Busan, Korea
2Associate Professor, Department of Architectural Engineering, Pukyong National University, Busan, Korea
1부경대학교 건축공학과 강사
2부경대학교 건축공학과 부교수
*knrhee@pknu.ac.kr
28 February 2021. pp. 52-62
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Abstract

In apartment buildings, supplementary insulation is usually applied to the indoor side of wall-wall or wall-slab junctions to prevent condensation at thermal bridges. Although it is well known that the supplementary insulation is effective for the condensation prevention, few studies were conducted to investigate the impact of the supplementary insulation on the heating energy. In the present study, THERM and TRNSYS simulations were performed to analyze the impact of the width of supplementary insulation and the thickness of exterior wall insulation on heating energy as well as condensation prevention. Simulation results showed that the supplementary insulation of 300 mm-width is enough for the condensation prevention. It was found that the supplementary insulation can reduce the heating energy demand by 4.1%, 4.3%, and 5.5% for Central 1, Central 2, and Southern region, respectively. The width of supplementary insulation needs to be determined to achieve the sufficient energy saving while avoiding excessive addition of the supplementary insulation.

Keywords
Supplementary insulation
Condensation prevention
Temperature difference ratio
Linear thermal transmittance
Heating energy
키워드
보조 단열재
결로 방지
온도차이비율
선형 열관류율
난방 에너지
References
1
Kim, K.S., Lee, D.B., Lee, J.H., Park, H.S. (2000). A Study on Evaluation of Insulation and Condensation Performance in Corners of Building Envelops. Journal of the Architectural Institute of Korea, 16(9), 163-168.
2
Koo, B.K., Lim, J.H., Song, S.Y. (2011). Statistical Analysis on the Prediction of Linear Thermal Transmittances for Wall-Slab Joints in Internally and Externally-Insulated Apartment Buildings. Journal of the Architectural Institute of Korea, 27(8), 305-312.
3
Lee, S.H., Chung, M.H. (2019). A Design Improvement for Insulation and Condensation Prevention by the Case Studies in Apartment Buildings - Focused on The Viewpoint of The Designer. Journal of Korea Institute of Ecological Architecture and Environment, 19(4), 61-66. 10.12813/kieae.2019.19.4.061
4
Song, S.Y., Koo, B.K., Choi, B.H. (2008). Insulation Performances of the Typical Floor's Front Wall-slab and Side Wall-slab Joints of Apartment Buildings with Internal and External Insulation Systems. Journal of the Architectural Institute of Korea, 24(8), 277-284.
5
Park, S.H., Lee, H.H., Kim, M.H., Lim, J.H., Song, S.Y. (2015). Condensation Resistance Performance Evaluation of Internal and External Insulation System on Apartment Buildings. Proceedings of AIK 2015 Spring annual conference, 35(1), 259-260.
6
Rhee, K.N. (2020). Analysis of Temperature Difference Ratio and Linear Thermal Transmittance at Wall Joints with Insulation Category in Apartment Buildings. Proceedings of AIK 2020 Spring annual Conference, 40(1), 317.
7
Rhee, K.N., Yu, J.Y. (2020). Energy Saving Effect of Supplementary Insulation for Condensation Prevention in Apartment Buildings. Proceedings of AIK 2020 Spring annual conference, 40(1), 312-313.
8
LH. (2013). Construction Work Handbook - Architecture. Geonsuldoseo: Korea, 255.
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Ministry of Land, Infrastructure and Transport (MOLIT). (2014). Detailed Guidelines for Preventing Condensation in Apartment Houses, 3.
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Ministry of Land, Infrastructure and Transport (MOLIT). (2016). Design Criteria for Preventing Condensation in Apartment Houses, MOLIT Notice No. 2016-835.
11
Ministry of Land, Infrastructure and Transport (MOLIT). (2018). Energy Conservation Design Standards for Buildings. MOLIT Notice No. 2017-881.
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Solar Energy Laboratory (SEL). (2017). TRNSYS 18 a TRaNsient SYstem Simulation program - Volume 5 Multizone Building Modeling with Type 56 and TRNBuild.
Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 15
  • No :1
  • Pages :52-62
  • Received Date : 2021-01-11
  • Revised Date : 2021-02-17
  • Accepted Date : 2021-02-17
  • DOI :https://doi.org/10.22696/jkiaebs.20210005
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