Algorithmization and software implementation for selecting operating parameters of pumping equipment in hydronic heating systems of residential buildings

Objective. The aim of the study is to develop and implement software algorithms for engineering calculations designed for the automated determination of the parameters of mixing, water-jet and circulation pumps used in water heating systems of residential buildings.

Method. The methodological foundation of the study is based on regulatory provisions in the fields of heating and heat supply, the heat balance equation, and the principles of hydraulic calculation for heating systems. The algorithms are implemented as three interrelated software modules, structured according to a block-logical scheme: input of initial data, thermal and hydraulic calculations, and output of parameters for pump selection. The calculations are performed with consideration of the steady-state thermal regime, outdoor and indoor air parameters, hydraulic losses in the system, and the design features of the pumping equipment.

Result. Three specialized software programs have been developed for selecting the operating parameters of mixing, jet, and circulation pumps used in hydronic heating systems of residential buildings. The automated determination of input and calculated parameters is provided, including maximum thermal load, mass flow rate of the heat carrier, flow mixing ratio, hydraulic head, and geometric characteristics. The structure of each software module is presented, with justification of the input data, intermediate computational results in the form of listings, and output parameters.

Conclusion. Algorithms simplify and accelerate the process of selecting pumping equipment operating parameters and minimize errors in engineering calculations. The software ensures that design solutions comply with regulatory requirements and takes into account external and internal climatic conditions and building performance characteristics. They also allow calculation algorithms to be adapted to heating supply conditions, including independent connections and closing sections of systems. Automated calculations facilitate the intensification of design work and are integrated into CAD and BIM technologies.

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