| Title |
A Study on the Energy Performance Improvement of Aluminum Curtain Wall Fastening Unit for Residential Complex by Insulation Coating |
| Authors |
Song Seung-Yeong ; Seok Ho-Tae ; Koo Bo-Kyoung ; Kim Youn-Jung |
| Keywords |
Curtain Wall ; Fastening Unit ; Insulation Coating ; Energy Performance |
| Abstract |
Aluminium curtain wall system is commonly used in high-rise residential complex. For the energy efficient curtain wall system, it is necessary to improve the insulation performance of fastening unit, which enjoins the curtain wall unit to the slab, because hot water pipes for radiant heating are installed on the slab in Korean residential building. However fastening unit becomes thermal bridge at which heat loss increases. It is attributable to the lack of insulation even though fastening unit is composed of metals with high thermal conductivity.
Thus, this study aims to suggest the efficient insulation method for fastening unit to improve the energy performance. Three alternatives of fasteners coated with insulation paint and urethane foam are selected in due consideration of construction convenience. Heating energy performance and economical efficiency of each alternative are analyzed by 3 dimensional annual transient heat transfer simulation and simple payback period method, respectively. |