Research of the Possibility of Automation of Geothermal Heat Supply of Greenhouses with a Surface Heat Exchanger

This article presents the results of modeling an automatic control system for heat supply of a greenhouse complex with a geothermal heat source, conducted in order to study the possibility of geothermal heat supply automation. For the implementation of modeling, a mathematical application package Scilab (version 6.0.1) is used. Reagentless treatment of geothermal water in the heat supply system with an acoustic-magnetic device can significantly reduce the intensity of scale formation in the heat exchanger and heat exchange equipment. It provides conditions for the automation of geothermal heat supply of greenhouses with a surface heat exchanger. Based on the results of the simulation, the optimal mode of operation of the heat exchanger automation system was developed. Using an automation system allow with greater accuracy and reliability to maintain the required temperature regime in the greenhouse, reduce the frequency of system shutdown for unplanned cleaning of the heat exchanger, reduce the complexity of manual operations of heat exchange equipment maintenance (removal of sludge, scale) and reduce the economic costs of transportation and heat consumption.