Optimalizace osvětlovacích soustav pro pěstování rostlin

Abstract

This bachelor’s thesis deals with the design and optimization of a multi-channel lighting system for an existing school grow box. The theoretical section describes radiant, photometric, and photosynthetic units, as well as the methodology for converting between them. It also explains the difference between how humans and plants perceive light and lists the quantitative and qualitative lighting requirements for plant cultivation. The practical section focuses on the design of a new multi-channel lighting system consisting of LED strips. Based on the findings from the theoretical section, red, blue, and existing white LED strips were selected. The spectral characteristics of the individual LED strips were determined using a spectrometer, and the optimal combination of three red, one blue, and one white LED strip was evaluated. Photosynthetic parameters for each variant were calculated from the measured data, and these variants were compared in terms of photosynthetic and energy efficiency. The thesis also includes a model created in the Building Design environment, in which illuminance and PPFD values on the growing area were simulated and compared, and the corresponding radiant and photometric parameters of the luminaires were calculated retrospectively. This work contributes to a better understanding of the influence of the spectral composition of radiation on plant growth and provides practical recommendations for the design of effective lighting systems.