Browse > Article
http://dx.doi.org/10.5658/WOOD.2017.45.3.343

Thermal Bridge and Heat Transfer Analysis for Each Part in Residential Building According to Construction of Wood-based Finishing Material  

Seo, Jungki (Building Environment & Materials Lab, School of Architecture, Soongsil University)
Jeong, Su-Gwang (Building Environment & Materials Lab, School of Architecture, Soongsil University)
Kim, Sumin (Building Environment & Materials Lab, School of Architecture, Soongsil University)
Publication Information
Journal of the Korean Wood Science and Technology / v.45, no.3, 2017 , pp. 343-359 More about this Journal
Abstract
Many researches and policies have been carried out for saving energy in buildings. However, there are a few studies of thermal characteristics of wood-based materials that have been widely used as structural materials and finishing materials in buildings. In this study, thermal bridging areas were found to investigate thermal performance of residential building using non wood-based materials and wood-based materials. And heat transfer analysis of 16 case studies according to composition of structural materials and finishing materials was conducted. Also in this experiment, Physibel Trisco was used as the heat transfer analysis simulation tool, which conforms to the calculation method of ISO 10211. Analytical modeling was also carried out according to the ISO 10211, and the boundary temperature conditions were set at room temperature $20^{\circ}C$ and outdoor temperature $-11.3^{\circ}C$ (Seoul standard) according to the energy saving design standard in South Korea. Applied structures are classified according to the cases of concrete structure with non wood-based finishing materials, concrete structure with wood-based finishing materials and wood structure. Analyzed building elements were divided into a wall, a roof, an interlayer floor and a bottom floor. As a result, it can be confirmed that the thermal bridge of the concrete structure and wood structure were caused by the geometrical and material causes. In addition, the structural thermal bridge was caused in the discontinuity of the insulation in the concrete structure. Also it was confirmed that the linear heat transfer coefficient of the wall decreases when the wood-based materials are applied to the concrete structure.
Keywords
thermal bridge; heat transfer analysis; Physibel Trisco; wood-based materials; concrete; building elements;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Chang, K.-K. 2003. Environment-friendly Wood House Architectural Institute of Korea, Review of Architecture and Building Science 47(5): 33-36.
2 Energy Statistics Handbook, 2014, Korea Energy Management Corporation.
3 Forsberg, A., von Malmborg, F. 2004. Tools for environmental assessment of the built environment, Building and Environment 39: 223-228.   DOI
4 Frank, T. 2005. Climate change impacts on building heating and cooling energy demand in Switzerland, Energy and Buildings 37: 1175-1185.   DOI
5 Ngohe-Ekam, P.S., Meukam, P., Menguy, G., Girard, P. 2006. Thermophysical characterisation of tropical wood used as building materials: With respect to the basal density, Construction and Building materials 20: 929-938.   DOI
6 Seo, J., Wi, S., Kim, S. 2016. Evaluation and Analysis of The Building Energy Saving Performance by Component of Wood Products Using EnergyPlus, Journal of Korean Wood Science and Technology 44(5): 655-663.   DOI
7 Suleiman, B.M., Larfeldt, J., Leckner, B., Gustavsson, M. 1999. Thermal conductivity and diffusivity of wood, Wood Science and Technology 33: 465-473.   DOI
8 Kang, Y., Kim, S. 2016. Evaluation of The Hygrothermal Performance by Wall Layer Component of Wooden Houses Using WUFI Simulation Program, Journal of the Korean Wood Science and Technology 44(1): 75-84.   DOI
9 Urushizaki, N., Mizuno, M., Shimoda, Y. 2003. The study on life-cycle waste and CO2 emission from countermeasure of long-life building, Journal of Architecture and Planning (Transactions of AIJ) 563: 93-100.
10 Yu, S.-G., Kim, S., Seo, J., Kim, S. 2013. Analysis of Energy Efficiency of Light-Weigh Wood Frame House and Wooden Passive House Using PHPP, Journal of the Architectural Institute of Korea 29(8): 199-207.