Simulation of strategic placement of luminaries for energy efficient lighting using daylight

Bangali Jayashri A¹*, Shaligram Arvind D²

1Kaveri College of Science and Commerce, Erandwane, Pune-411038

2Department of Electronic Science, University of Pune, Pune-411007

*Corresponding Author’s E-mail: jayashri789@yahoo.com

Accepted 23 February 2013

Abstract

Lighting simulation is increasingly gaining importance as a tool for energy optimization of modern buildings. Lighting simulation tools are used to see illumination distribution. This paper reviews lighting simulations tools available in market and presents an optimal procedure of obtaining strategic placement of Luminaries, for energy efficient lighting systems, taking advantage of daylight.  A ‘Room model’, accommodating the dynamic features of a daylighting project is built in lighting simulation software DIALux 4.10. Using this tool outputs such as 3D representation, energy evaluation, luminance distribution and table outputs are obtained. These are then used in evaluating the candidate illumination system designs for a room model. Results of three alternative candidate designs or arrangements of commercial available luminaire are presented. Some issues and challenges related to the simulation tools such as time complexity, challenges of sky models, real time control application, validation and time taken by simulation process are discussed in this paper.

Keywords: Daylighting, lighting simulation, DIALux, room model, energy efficient, CIE sky models