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End-of-life Design: Lighting Sustainability

Posted in Research by Kate Archdeacon on March 19th, 2010

Source: IOP Science via  Environmental Research Web

Reducing environmental burdens of solid-state lighting through end-of-life design, C T Hendrickson, D H Matthews, M Ashe, P Jaramillo and F C McMichael; Green Design Institute, Carnegie Mellon University, USA

Abstract:

With 20% of US electricity used for lighting, energy efficient solid-state lighting technology could have significant benefits. While energy efficiency in use is important, the life cycle cost, energy and environmental impacts of light-emitting diode (LED) solid-state lighting could be reduced by reusing, remanufacturing or recycling components of the end products. Design decisions at this time for the nascent technology can reduce material and manufacturing burdens by considering the ease of disassembly, potential for remanufacturing, and recovery of parts and materials for reuse and recycling. We use teardowns of three commercial solid-state lighting products designed to fit in conventional Edison light bulb sockets to analyze potential end-of-life reuse strategies for solid-state lighting and recommend strategies for the industry. Current lamp designs would benefit from standardization of part connections to facilitate disassembly and remanufacturing of components, and fewer material types in structural pieces to maximize homogeneous materials recovery. The lighting industry should also start now to develop an effective product take-back system for collecting future end-of-life products.

Contents

1. Introduction

2. Current state of design for LED SSL products

3. Product life cycles and green design principles

4. Green design of LED lamps and luminaires

4.1. Design for reuse and servicing

4.2. Design for disassembly

4.3. Design for product and component remanufacturing

4.4. Design for materials recovery

4.5. Establishing product take-back

5. Conclusions

Acknowledgments

References

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