Kim, Daekeun, Urbanic, Jill et Carriveau, Rupp.
2025.
« Plant companion lighting system to enhance energy efficient agriculture in remote regions ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
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Résumé
This study presents an energy-efficient Plant Companion LED System designed for crops with low Daily Light Integral (DLI) requirements, such as lettuce and peas. The research focuses on optimizing LED lighting for vertical farming in northern Canada, where food security remains a challenge due to extreme climates and geographic isolation. Artificial lighting accounts for over 60% of energy consumption in vertical farms, making it a critical factor in improving sustainability.The proposed system enhances energy efficiency by dynamically maintaining an optimal light-to-crop distance, adjusting light intensity according to plant growth stages, and incorporating reflectors to minimize light loss. The system integrates an Arduino UNO-based control system, ultrasonic distance sensors, and servo motors to automate LED positioning. Additionally, a hinged LED panel mechanism ensures more effective light distribution, particularly at the edges, where light is often wasted.The research employs Response Surface Methodology (RSM) and Central Composite Design (CCD) to determine the optimal LED height, angle, and intensity for energy savings and uniform crop growth. Experiments are conducted using Butterhead lettuce in a hydroponic setup, and Photosynthetic Photon Flux Density (PPFD) is measured to evaluate lighting efficiency. Analysis of Variance (ANOVA) results indicate that LED intensity and distance significantly impact PPFD, while LED angle and reflectors have a smaller effect.The findings demonstrate that maintaining an optimal LED height of 50 mm, intensity of 15%, and an LED angle of 45 degrees, along with the use of four reflectors, achieves the best balance between energy efficiency and crop productivity. The optimized setup reduces energy consumption while maintaining target PPFD levels necessary for healthy plant growth.This study highlights the importance of adaptive LED systems for Controlled Environment Agriculture (CEA) in energy-constrained regions. By dynamically adjusting lighting parameters, the Plant Companion LED System addresses food insecurity in remote areas by enabling sustainable, year-round crop production. Future research will focus on implementing real-time adaptive lighting control and evaluating long-term energy savings in large-scale applications.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Date de dépôt: | 18 déc. 2025 15:15 |
| Dernière modification: | 18 déc. 2025 15:15 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32438 |
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