Provision of air humidity in a medium-sized greenhouse object

Any changes in air temperature and humidity have a negative impact on plant cultivation. The basis of microclimate control is the temperature and humidity inside the greenhouse. The purpose of this paper is to analyze the humidity changes in a mechanically ventilated greenhouse. For this purpose, a simplified model of a medium-sized greenhouse was developed. The modeling was performed for one day in the Kherson region (May 17, 2023). The greenhouse model was modeled without plants. The results of the study are the modeled distributions of air masses and air humidity in the greenhouse. Using the obtained air distribution data, the water consumption for spraying nozzles during the day was determined, which is the basis of the hydraulic humidification system of the greenhouse. The results of the study are suitable for use in control algorithms for the greenhouse mechatronic system to take into account cyclic daily changes in humidity parameters.