Mathematical model of flow distribution in an individual heating station

Mathematical modeling of thermal and hydraulic conditions in individual heating substations (IHS) is a priority task for the design, adjustment, and dispatching of heat supply systems as a whole. IHSs serve as the link between heating networks and building engineering systems, so their reliability and safety largely depend on correct design decisions, which are impossible without the development of adequate mathematical models. Solutions are needed that will significantly improve the quality of heat supply regulation at IHSs. The use of a mathematical model of IHSs will also enable planning of measures for the rational use of energy resources. The reliability of IHS pipeline networks requires closer attention to design decisions. Thus, refined mathematical models of heating substations allow for both capital savings and reliable transportation of heat energy.

Objective: To develop a mathematical model of flow distribution in an individual heating substation to ensure the reliability and safety of district heating systems in real time. Methods: Computer modeling of flow distribution at individual heating substations (IHSs) with various characteristics and connection schemes to district heating networks. Results: A mathematical model of an IHS is proposed, enabling the assessment of its operational reliability through the use of computer and software technologies. Software was developed for taking measurements in real time. It is shown that regulation of heat flows does not always correspond to the actual needs of buildings, which can lead to an incorrect assessment of specific heat losses. Conclusions: The constructed mathematical model of a heating substation allows a sufficiently complete picture of the flow distribution state in an IHS to be obtained and an assessment of the reliability of heat supply to buildings and structures.

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