A quality approach of the lighting installations

Mihaela Pop, Florin Pop, and Mircea Chindris, Lighting Engineering Center, Romania

Keywords

evaluation, quality, lighting, interior, computer program, toolkit, survey

Abstract

The paper is related to the evaluation of the interior lighting systems quality. A multi-criteria method provides the means to consider the lighting installation not only by its photometrics, but also by electric/economic parameters and human behavior. It is developed a working tool to analyse the quality of an interior lighting installation ILES – Interior Lighting Evaluation System –, with two components – an objective photometric and energetic analysis LQED – Lighting Quality & Economic Diagnose and a subjective survey ULCS – Users’ Lighting Comfort Survey.

The evaluation system ILES allows to estimate the degree on which the existing (or designed) lighting installation fulfills the required photometrical, electrical, economical and human standards, and to know whether the user’s needs and preferences are satisfied, and in what extent. A computer program supports the analysis of energy efficiency and quality of lighting systems.

Specific modules are related to the objectives of this study – the quality factor, the daylight availability, the energy savings expectations. A toolkit designed to allow the measurements or estimation of photometric parameters, electric energy metrics, energy savings opportunities and users’ opinions. It is presented with its components and using recommendations.

The survey of the user’s opinions to assess the electrical lighting in their work office was designed to match the local knowledge and education in lighting topics and the technical needs and state of the facts. Part of this research is based on the [2, 3, 15, 16] works.