An Approach for Designing Mixed Light-Emitting Diodes to Match Greenhouse Plant Absorption Spectra

Latifa Bachouch, Neermalsing Sewraj, Pascal Dupuis, Laurent Canale, Georges Zissis, Lotfi Bouslimi and Lilia El Amraoui
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Latifa Bachouch: Research Laboratory Smart Electricity & ICT, SE & ICT Lab., LR18ES44, National Engineering School of Carthage, University of Carthage, 45, Rue des Entrepreneurs, Charguia II, 2035 Tunis, Tunisia
Neermalsing Sewraj: LAPLACE, UMR 5213 (CNRS, INPT, UPS), Université de Toulouse, 118 rte de Narbonne, 31062 Toulouse, France
Pascal Dupuis: LAPLACE, UMR 5213 (CNRS, INPT, UPS), Université de Toulouse, 118 rte de Narbonne, 31062 Toulouse, France
Laurent Canale: LAPLACE, UMR 5213 (CNRS, INPT, UPS), Université de Toulouse, 118 rte de Narbonne, 31062 Toulouse, France
Georges Zissis: LAPLACE, UMR 5213 (CNRS, INPT, UPS), Université de Toulouse, 118 rte de Narbonne, 31062 Toulouse, France
Lotfi Bouslimi: Research Laboratory Smart Electricity & ICT, SE & ICT Lab., LR18ES44, National Engineering School of Carthage, University of Carthage, 45, Rue des Entrepreneurs, Charguia II, 2035 Tunis, Tunisia
Lilia El Amraoui: Research Laboratory Smart Electricity & ICT, SE & ICT Lab., LR18ES44, National Engineering School of Carthage, University of Carthage, 45, Rue des Entrepreneurs, Charguia II, 2035 Tunis, Tunisia

Sustainability, 2021, vol. 13, issue 8, 1-16

Abstract: We report a methodological approach for simulating luminary output radiation, which is achieved by mixing light-emitting diodes (LEDs) in order to match any plant absorption spectrum. Various recorded narrow-band LED spectra of different colors were first characterized and then fitted with a multi-Gaussian model. An optimizing procedure computed the optimal weighting of the relevant parameters so as to minimize the discrepancy between the combined spectrum and the reference target curve. The particle swarm optimization (PSO) method was applied because it is the most suitable technique for mono-objective situations. Within the useful spectral interval, the worst relative standard deviation between the optimized curve and recorded LED spectral power distribution (SPD) was 3.4%. When combining different LED types, the simulated light output showed that we could limit ourselves to selecting only five colored sources. This work will help us to design an optimized 200 W laboratory luminaire with a pulse-width switched-mode power supply.

Keywords: LED; emission spectrum; optimization; PSO; photosynthesis; McCree (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:8:p:4329-:d:535356

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