| Title |
Energy Performance and Economic Feasibility Evaluation of Exterior Insulation and Finish System with Truss-shaped Insulation Frame Reflecting Thermal Bridging Effect |
| Authors |
최보혜(Choi, Bo-Hye) ; 송승영(Song, Seung-Yeong) |
| DOI |
https://doi.org/10.5659/JAIK.2022.38.2.153 |
| Keywords |
Truss-shaped Insulation Frame; Exterior Insulation and Finish; Thermal Bridge; Energy Use; Life Cycle Cost |
| Abstract |
This study aims is to compare the energy performance and economic feasibility of outer wall insulation systems using conventional
rectangular pipe frames as the base case with double and single truss-shaped insulation frames intended to reduce the thermal bridging effect
of alt 1 and alt 2. Annual heating and cooling energy use were estimated by performing a dynamic building energy simulation. The thermal
bridging effect was modeled by applying the linear thermal transmittance obtained from the three-dimensional steady-state heat transfer
simulation to the building energy simulation. The annual energy cost, construction cost, and life cycle cost for 30 years were estimated
together. The results indicated that the annual energy use of alt 1 and alt 2 decreased by 12.5% and 13.9%, the annual energy cost
decreased by 11.8% and 13.2%, the construction cost decreased by 1.4% and 6.8% and the life cycle cost of alt 1 and alt 2 decreased by
2.6% and 7.5% respectively. |