Title Optimal Transmittance Selection of Office Window by Visual Amenity and The Analysis of Energy Performance
Authors Kim Byoung-Soo ; Yim Oh-Yon
Page pp.107-115
ISSN 12269093
Keywords Subjective Evaluation ; Optimal Transmittance ; Minimum Transmittance ; Visual Amenity ; Energy Performance
Abstract At present, with the development of using glass in building, visual amenity and energy saving were more concerned. However, it is found at glass performance evaluation that there is more consideration on energy saving than occupant visual amenity. Therefore, this study's aim is to select optimum and minimum transmittance by analysis visual amenity and energy performance used in office glass. The process of the study is as follows: 1)selected 6 transmittances as evaluated value from current film maker in office building window and analysis on construction case. 2) set up Mock-up model, then select 17 evaluated values. 3)analyzed cooling-heating load, light energy, daylight glare of office building with the different transmittance change. 4) selected proper transmittance of office building through subjective evaluation of Mock-up experiment, energy performance and glare analysis. As a result of subjective evaluation, the comfort transmittance is from 40% to 60% . cooling-heating load is about 50%, and on glare evaluation the proper transmittance is from 20% to 40%.