Research of technological systems of steam supply and possible ways of increasing their energy efficiency on the example of devices for defrosting wagons

Steam supply systems of industrial enterprises in various fields of activity remain relevant primarily due to the thermophysical features of the use of phase transition energy of water vapor in the process of its condensation. In addition, in the countries of Eastern Europe, traditionally a significant number of existing boiler houses are steam and the choice of energy carrier is determined precisely by the presence of a characteristic source. At the same time, cargo logistics processes are provided today largely by sea transport, and delivery to ports is traditionally carried out by rail, which in turn requires the use of a defrosting system and transshipment of bulk products. The paper presents the results of studies of energy consumption of devices for defrosting wagons of port infrastructure and proposes circuit thermal and mechanical solutions for the modernization of the steam supply system of defrosting house. According to the results of the study, the values of heat energy consumption per unit of output in the existing scenario and after modernization are given. The characteristic technological and thermotechnical features of the existing scheme of devices for defrosting wagons of the port infrastructure of Ukraine and measures for the modernization of such systems, the introduction of which will achieve a significant reduction in the consumption of thermal energy in shunting non-stationary modes of operation of defrosting houses, are given. The feasibility of using an infrared wagon heating system using steam registers is substantiated.