Title Prediction Analysis of Condensation on the Interior Curtain-wall Surface of the High-rise Apartment Unit
Authors Lim Jeong-Hee ; Choi Seok-Kyoo ; Kim Kwang-Ho ; Kim Byung-Seon
Page pp.205-214
ISSN 12269093
Keywords High-rise Apartment ; Curtain Wall ; Condensation ; Ventilation Performance ; Simulation
Abstract Recently, the condensation of walls often occurring in domestic high-rise apartment buildings is an important problem.
The main purpose of this study is to develop the prediction method for the surface condensation on curtain wall in high-rise apartment buildings. Therefore, in this study, we first analyzed exterior climate factors through the analysis of the Seoul climate data and predicted the change of indoor temperature by using Apache program to find the cause of the condensation state and to prevent condensation. Also, according to this result, exterior climate factors and interior factors, which caused the condensation, was examined. The thermal performance of the curtain wall and the range of potential condensation were analyzed to focus on high-rise apartment buildings through computer simulation programs. The results are as follows; 1) The frame edge of curtain wall has a higher U-value than in the center by 30%. 2) Because of stack effect, the rooms on the higher floor have a lower external ventilation rate resulting to a higher relative humidity. 3) Installing a ventilation system(20 ㎥/h?person) makes it possible to have a higher external ventilation rate, resulting to a lower relative humidity.