Study on the Performance Evaluation of Internally-Built and Blind-Type Triple Glazing Window Based on Office Environment

Recently there has been growing concern about the increase in the amount of energy consumed in the field of architecture. Especially, in Korea and U.S., the amount of energy consumed through air-conditioning and heating accounts for 36% and 34%, respectively, of the total amount of energy used in buildings. In order to address this energy issue, various studies and technological developments are in progress. Among them, studies have been actively conducted to investigate the dual blind and triple glazing window. However, the external blind is vulnerable to the risk of damage, while dual windows are problematic in terms of to what extent they can help reduce energy consumption. In order to solve such issues, the Venetian blind internal type triple glazing window is suggested in this study. A test bed was established before the assessment in order to evaluate the performance of internally-built and blind type triple glazing window based on an office environment. Performance evaluation of the suggested internally-built and blind type triple glazing window was compared with the dual window, and the amount of electricity used and pattern for electricity use were derived on the basis of air-conditioning and heating devices to maintain the indoor temperature at 29.6℃. The conclusion of the performance evaluation of the internally-built and blind type triple glazing window is as follows. First of all, the reduction rate in the amount of electricity used with the internally-built and blind type triple glazing window was from 11.6% to 16.3% compared to the dual window. Secondly, when installing the blind, the reduction rate in the amount of electricity used turned out to be higher than reduction amount achieved when not installing the blind. The reduction rate in the amount of electricity used when installing the blind was from 12.6% to 16.3% depending on the slat angle. Third, the reduction rate in the amount of electricity used for the internally-built and blind type triple glazing window tuned out to be the highest when the slat angle was 90 degree. Fourth, the frequency of operating air-conditioning and heating devices with the internally-built and blind type triple glazing window revealed an increasing trend compared to the dual window, while the pure electricity value was reduced in half. A follow-up study will be conducted in order to assess the performance evaluation of triple glazing window during the winter solstice and interim period and to examine the economic efficiency of the triple glazing window suggested in this study.