Abstract
This paper introduces a Double Skin Façade (DSF) system that can be installed in existing apartments in South Korea as a replacement of poorly performing old balcony windows. The DSF system can bring thermal benefits, especially in heating dominant climate areas. The DSF system works as a thermal buffer area and passive heating system. The goal of this research is to evaluate the thermal performance of a DSF system installed in apartments at different floor levels. A typical 25-story apartment building is used as a case study to test the thermal performance of a DSF system in different floors. Heating energy savings are the focus since the location, Seoul, is a heating dominant climate area. The main parameters are temperature, wind speed, and pressure differences at different floor levels. A thermal simulation model for a Base-Case is developed and calibrated to measured data gathered from a real-scale DSF system physical model. Two other simulation models are developed on top of the Base-Case model to compare performances of the DSF system installed in apartments at different floor levels. Results show that the first floor apartment unit consumes the least heating energy and the 25th floor the most, as expected. The outside air temperature difference between the first floor and the 25th floor was about 0.4 °C. The results also show the largest heating energy savings of 30% in the 21st floor with the installation of the DSF system.
Original language | English |
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Article number | 100900 |
Journal | Journal of Building Engineering |
Volume | 26 |
DOIs | |
State | Published - Nov 2019 |
Externally published | Yes |
Funding
This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy ( MOTIE ) of the Republic of Korea ( No. 20172010000370 ).
Keywords
- Building simulation
- Double skin façade
- Floor levels
- High-rise apartment
- Retrofitting