Context Presentation
When it comes to identifying and measuring the quantifiable effects of products or services on the environment, Life Cycle Assessment (LCA) is probably the most powerful and recognized tool. Thanks to a multicriterion and a cradle-to-grave approach, LCA identifies and quantifies, throughout the life of products, the physical flows of matter and energy associated with human activities (extraction of raw materials required for the manufacture of the product, distribution, use, collection and disposal to end-of-life systems and all phases of transport). For each of its flows, there are impact indicators that establish the overall potential impact of the system on our environment.
During past years, smart lighting technologies allowed significant improvements regarding lamp efficiency during use phase (from 19% to 15% of global electricity consumption), nevertheless, there are direct or indirect impacts on our environment, health, well-being or productivity not taken into account into Life Cycle Assessment (LCA) studies, and we can’t no longer neglected them.
Figure 1: Impacts assessment of lighting systems
Scientific Goals
- How to extend LCA methodology in order to determine which lighting system is most performant regarding environmental, economic and social aspect?
- How using phase could impact on lamp overall performance (Light Loss Factor, Mean Time Before Failure and Maintenance Factor)?
- Which criteria should be used to reflect lighting impact on human health or ecosystems during use phase?
Keywords
Lighting systems, Life Cycle Assessment, Circadian effect, Life cycle Cost, Multicriterion analysis.
Contacts
kevbertin@gmail.com – bertin@laplace.univ-tlse.frEncadrants : georges.zissis@laplace.univ-tlse.fr , marc2.mequignon@free.fr
