| Abstrakt: |
Depletion of the world's fuel and energy resources, which causes an inevitable increase in energy prices, both on the world market and in Ukraine, has exacerbated the problem of the introduction of energysaving technologies and put research aimed at the effective use of renewable energy sources for the purposes of energy supply into a number of strategic tasks state. The paper analyzes existing heat supply systems and ways to increase the efficiency of using existing energy resources and reduce emissions of harmful substances into the environment. The expediency of a comprehensive approach to the implementation of energy-efficient technologies in the heat supply system, taking into account the peculiarities of the operating modes of buildings and engineering life support systems, is shown. Based on the analysis of existing mathematical models and methods of calculating the operating modes of various elements of the combined heat supply system using renewable energy sources (solar collectors, heat pumps, heat accumulators, etc.), mathematical models of the operating modes of the specified systems are given. On the example of a separate building of public purpose (educational building), the calculation of the operation modes of the microclimate engineering systems was carried out taking into account the operating modes of the building, and on the basis of the available pilot plant, a study of the operation of the combined heat supply system using renewable energy sources and the use of heat accumulators was carried out to coordinate the generation modes and heat consumption by the building. On the basis of the conducted research, the distribution of the shares of energy savings from each stage of modernization of microclimate engineering systems and general thermal modernization of the building using both external thermal insulation and internal shielding of massive walls was obtained. [ABSTRACT FROM AUTHOR] |
