Life cycle assessment of LED luminaire and impact on lighting installation – A case study

Abstract

In the presented study the Life Cycle Assessment of a LED suspended luminaire manufactured in Romania was performed, with the use of One Click LCA software. The results of the calculations show that the main environmental impact of the LED luminaire is generated by the operational energy use (96.046 % percent of the total global warming potential fossil kg CO2e). The environmental impact at the manufacturing stage is determined mainly by the aluminium, found in higher percentage in the LED luminaire body, fixing clips, LED module and LED driver. The analysis was extended for a lighting installation composed of the studied LED suspended luminaire. At first, using DIALux evo 11 software, the correct number and position of the LED luminaires was established, while respecting the EN 12464-1 standard regulations. Different cases were considered, taking into consideration the solution of implementing daylight system control in educational rooms of the Building Services Engineering Faculty, Technical University of Cluj-Napoca, with effect in reduction of the operational energy use. By implementing the daylight control for the considered educational rooms, the global warming potential fossil due to the operational energy use can be reduced up to approx. 10 %.

Keywords

• Life cycle assessment
• Lighting
• Energy efficiency
• LED luminaire