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Circular Economy Aspects Regarding LED Lighting Retrofit—from Case Studies to Vision

Author

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  • Dorin Beu

    (Building Services Faculty, Technical University of Cluj-Napoca, Cluj-Napoca 400114, Romania)

  • Calin Ciugudeanu

    (Building Services Faculty, Technical University of Cluj-Napoca, Cluj-Napoca 400114, Romania)

  • Mircea Buzdugan

    (Building Services Faculty, Technical University of Cluj-Napoca, Cluj-Napoca 400114, Romania)

Abstract

The lighting industry is still a linear economy, despite the extensive use of light-emitting diode (LED) and the ban of incandescent/halogen lamps, claiming to be greener and more human centered. Light-emitting diode has changed radically the whole lighting industry with an increased luminaire efficacy more than four times higher compared with fluorescent lamps and their new opportunities for modern control systems. In the years to come, millions of fluorescent luminaires will become waste and will be replaced by LED luminaires. According to the Cost European Cooperation in Science & Technology Program the next step will be from sustainability to regenerative (enabling social and ecological systems to maintain a healthy state and to evolve) and to get there, circular economy is essential. In order to reduce even further the carbon footprint, the retrofit of existing luminaires and additional modern control systems should be the solution. Circular economy aspects for the lighting area were identified using the university adopted lighting retrofit solutions as case studies. For an LED retrofitted recessed luminaire 4 × T8 18 W studies showed a major installed power reduction, a good lighting distribution, but also revealed some problems: the retrofit luminaire has no certification, necessity of qualified personnel, high labor costs, etc. A major issue is the fact that luminaire design did not take into consideration circular economy aspects like the possibility of future retrofit solutions. It is important that from now on a different approach should be foreseen for the LED luminaire design. There is a section about vision, which plays an important role in preparing new luminaire generations with circular economy in mind.

Suggested Citation

  • Dorin Beu & Calin Ciugudeanu & Mircea Buzdugan, 2018. "Circular Economy Aspects Regarding LED Lighting Retrofit—from Case Studies to Vision," Sustainability, MDPI, vol. 10(10), pages 1-14, October.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:10:p:3674-:d:175542
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    References listed on IDEAS

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    1. Julia L. K. Nußholz, 2017. "Circular Business Models: Defining a Concept and Framing an Emerging Research Field," Sustainability, MDPI, vol. 9(10), pages 1-16, October.
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    Cited by:

    1. Rocío González-Sánchez & Davide Settembre-Blundo & Anna Maria Ferrari & Fernando E. García-Muiña, 2020. "Main Dimensions in the Building of the Circular Supply Chain: A Literature Review," Sustainability, MDPI, vol. 12(6), pages 1-25, March.
    2. Calin Ciugudeanu & Mircea Buzdugan & Dorin Beu & Angel Campianu & Catalin Daniel Galatanu, 2019. "Sustainable Lighting-Retrofit Versus Dedicated Luminaires-Light Versus Power Quality," Sustainability, MDPI, vol. 11(24), pages 1-15, December.
    3. Pode, Ramchandra, 2020. "Organic light emitting diode devices: An energy efficient solid state lighting for applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    4. Nona Schulte-Römer & Josiane Meier & Max Söding & Etta Dannemann, 2019. "The LED Paradox: How Light Pollution Challenges Experts to Reconsider Sustainable Lighting," Sustainability, MDPI, vol. 11(21), pages 1-17, November.
    5. Lambros T. Doulos & Aris Tsangrassoulis & Evangelos-Nikolaos Madias & Spyros Niavis & Antonios Kontadakis & Panagiotis A. Kontaxis & Vassiliki T. Kontargyri & Katerina Skalkou & Frangiskos Topalis & E, 2020. "Examining the Impact of Daylighting and the Corresponding Lighting Controls to the Users of Office Buildings," Energies, MDPI, vol. 13(15), pages 1-25, August.

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