Study of the Effectiveness of the Transition from an Open Heat Supply Systems to a Closed One

Abstract

Abstract A promising direction in terms of improving heating networks is the transition from an open heating system to a closed one, which meets modern requirements fixed at the legislative level. However, the effectiveness of such measures is ambiguous. Despite the fact that closed systems maintain high quality water for hot water supply, stable hydraulic mode, automatic regulation of heat supply, their advantages are questioned. At the same time, open systems have significant advantages that, in some cases, give preference to: low corrosion rate of metal in pipelines and equipment due to the use of boiler-quality heat transfer agent that has been processed at a heat source, low cost of ITP, due to the lack of heat exchange devices that increase the cost of thermomechanical equipment, the use of exhaust steam from turbines of thermal power plants and thermal power plants, which increases the efficiency of heat supply. The disadvantage is the low quality of water for hot water supply systems and the need to replenish open heating networks with large volumes of prepared and treated water. A comparative analysis of costs in the transition from an open heating system to a closed one is devoted.