| Summary: | The paper gives a general statement of the problem of choosing the structure of energy sources of urban heat supply systems to meet technical, economic and environmental constraints. One of the effective approaches to solve such a problem is the construction and optimization of redundant schemes of technological structures of energy sources. A model based on the theory of energy hubs is presented as one of the methods for constructing the redundant scheme. The application of the theory of energy hubs for selecting the types of energy sources allows, in an enlarged form, selecting the main equipment of energy sources, and evaluating technical and economic indices, and the degree of negative impact on the environment (at the level of gross emissions of harmful substances into the atmosphere). A case study of modeling a redundant system for selecting the optimal structure of energy sources, considering the minimum atmospheric pollution, is illustrated.
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