| Title |
Development of Nomographs for the Evaluation of Lighting Energy Performance in a Small Office Space Fenestration |
| Authors |
Ko Dong-Hwan ; Kim Han-Sung ; Jo Dong-Woo ; Kim Kang-Soo |
| Keywords |
Daylight ; Lighting Energy ; Energy Saving ; Nomograph |
| Abstract |
The purpose of this study was to analyze daylighting performance in a small size office space fenestration for lighting energy conservation. DOE2.1E was used for simulations for the model space of 3×6×2.6m. Nomographs were developed which could simulate work plane illuminance, glare index, energy consumption and energy reduction rate for daylighting design. ????Major results of simulations are as follows ; 1) Simulation results show that 45∼48% of lighting energy can be saved by using daylight dimming systems. 2)??When blinds facing south were installed, 42% of workplane illuminance diminished, but the glare index didn't exceed the recommended max-glare value. 3) In the office space facing south, energy consumption rate in the case space of 500 lux workplane illuminance is larger than the case space of 300 lux workplane illuminance. Therefore, energy reduction rate is increased when the office faces south and maintains 300 lux workplane illuminance level. |