Spectrally Enhanced Lighting Program Implementation for Energy Savings: Field Evaluation

Gordon, Kelly L. ; Sullivan, Gregory P. ; Armstrong, Peter R. ; Richman, Eric E. ; Matzke, Brett D.

Pacific Northwest National Laboratory (U.S.)

关键词: Spectrally Enhanced Lighting;    Lighting Retrofit;    Energy Conservation Spectrally Enhanced Lighting;    Color;    Light Bulbs;   

DOI  :  10.2172/896348
RP-ID  :  PNNL-15784
RP-ID  :  AC05-76RL01830
RP-ID  :  896348

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report provides results from an evaluation PNNL conducted of a spectrally enhanced lighting demonstration project. PNNL performed field measurements and occupant surveys at three office buildings in California before and after lighting retrofits were made in August and December 2005. PNNL measured the following Overhead lighting electricity demand and consumption, Light levels in the workspace, Task lighting use, and Occupant ratings of satisfaction with the lighting. Existing lighting, which varied in each building, was replaced with lamps with correlated color temperature (CCT) of 5000 Kelvin, color rendering index (CRI) of 85, of varying wattages, and lower ballast factor electronic ballasts. The demonstrations were designed to decrease lighting power loads in the three buildings by 22-50 percent, depending on the existing installed lamps and ballasts. The project designers hypothesized that this reduction in electrical loads could be achieved by the change to higher CCT lamps without decreasing occupant satisfaction with the lighting.