Simple Tool for Energy Analysis of Day Lighting and Artificial Lighting for a Typical Office Building Lighting System Design

Today, energy shortage and carbon emission are the major challenges faced by all countries. There are many ways to tackle this issue by saving energy in many sectors. Lighting is used in many applications and it is one of the areas to be addressed for imp roving the energy efficiency thereby reducing the energy consumption. In this paper, a typical office building in Dubai is considered for analysis. The first section of the paper reports an efficient use of natural lighting into an office building to improve the energy efficiency. This study is carried out using Simulation software VELUX Daylight Visualizer 2 and simu lation results are discussed in detail. The study showed that an ideal office space in Dubai has amp le potential to harvest natural light to reduce the need for art ificial lighting. In the second section, artificial lighting is used to complement natural lighting to meet the required illu mination criteria. DIA Lu x 4.1 Lighting Wizard software is used to design and evaluate artificial lighting scheme with similar illu mination abilities for the same office space through the use of different types of lamps and the simulation results are highlighted. Its cost effectiveness is also studied. The impact of use of natural lighting and artificial lighting on HVA C system is examined and highlighted.