Simulation modeling of water supply systems in order to save energy
DOI:
https://doi.org/10.32347/2524-0021.2020.34.25-36Ключові слова:
water supply system, pumping station, water supply network, simulation modeling, energy savingАнотація
The water supply industry is one of the most energy-intensive, therefore, an urgent task today is to find methods for ensuring energy-efficient water supply to settlements and individual objects. Water supply systems are a complex of structures in interaction, therefore, a change in the operation of any one structure will certainly affect the performance of others and the entire water supply system as a whole. Nowadays, the majority of public utilities enterprises are characterized by high depreciation of fixed assets, primarily water supply networks, which is the cause of significant losses and secondary pollution of water. Changes in the norms and modes of water consumption in settlements lead to the creation of excessive pressures in the water supply system and an increase in its accident rate. At the same time, the operation of pumps is often outside the recommended application with low rates of efficiency, and therefore the specific power consumption for water supply in many regions of the country continues to remain at a high level. During operation, the characteristics of all structures of hydraulic interaction gradually change, which leads to the emergence of contradictions between the design and real operational indicators of the water supply system, the lack of supply of consumers with the required amount of water and pressure in the network. The situation can be improved by using rational schemes, energy-saving technologies and modern efficient equipment, materials and means on the way of transporting water from a water source to a consumer. It is possible to reduce the energy consumption in the system by applying the method of simulation modeling of the operation of hydraulically interacting structures, which allows one to study various options for supplying the estimated water flow rates, analyze the results obtained in terms of specific energy consumption and establish reasonable water supply schemes and energy-saving modes of operation of structures. The article provides an example of using this methodПосилання
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