Example of Grow Box Lighting System Designing

The increasing demand for plant cultivation in grow boxes using artificial light necessitates ensuring adequate lighting conditions to support plant growth and maturation. This paper presents a case study that focuses on optimizing the selection of LED light sources by examining the conversion between light technical, radiant, and photosynthetic units. This conversion process translates the photosynthetic requirements for plant growth into the necessary radiant and light technical requirements. By understanding these conversions, we can optimize the choice of LED light sources based on the relationship between electrical power input and photosynthetic photon flux (PPF) output. The ratio between luminous flux and PPF can then be employed for designing and sizing the grow box lighting system. This approach enables the use of standard lighting software to design the grow box lighting system. The study's outcome is a light-technical model that includes defined values for photosynthetic photon flux density (PPFD) at various distances (calculation horizontal planes) from the lighting system and power consumption data. Moreover, the energy balance of the lighting system is considered, accounting for heat losses due to the efficiency of the LED source in converting electrical power to radiant flux and the efficiency of the luminaires. This comprehensive analysis allows for the informed selection and implementation of LED light sources, ultimately contributing to more efficient and effective grow box systems.