Development of environmentally sustainable solutions to provide greenhouse production with alternative energy

The paper presents scientific and technical solutions to improve the efficiency of greenhouse irradiators used in growing plants in the light culture of industrial greenhouses. The author's technology is described, which makes it possible to regulate the energy flows of the irradiation system during the growing process. The results are given that determine the rational temperature range of the air flow 32÷38°С, created by a greenhouse irradiator, for the needs of heating an industrial greenhouse. It has been established that a decrease in the lamp temperature in the voltage range on the greenhouse irradiator of 198÷220 V for every 1°C leads, on average, to an increase in the PAR value by 2.5 mW/cm 2 . Dependences of the radiation force distribution as a function of the air flow velocity and PAR as a function of the lamp temperature are obtained. The regularities of influence of network operation modes and lamp temperature on the efficiency of the irradiation system as a whole are determined. Taking into account the experimental data obtained, a technological scheme of irradiation in an industrial greenhouse was developed and the principle of its operation with a greenhouse irradiator with a forced cooling function was described.