Analysis of the effectiveness of solar systems use in the university centralized heat supply systems

Abstract

The paper analyzes the current state of solar energy for communal needs and the possibility of using it as part of centralized heat supply systems. Helio systems are widely used in the southern region for a number of reasons. The use of solar collectors allows you to significantly reduce the heat consumption of buildings in the summer, and sometimes to reduce the use of traditional energy sources to zero. However, in other periods of the year, the share of replacement by traditional solar energy is much lower. In such cases, the question arises as to which heat supply load the system will be designed for - for summer, winter or demi-season. To fulfill the main tasks of the research, an analysis of the main operating methods and software complexes for calculating the operation of the solar system as part of combined heat supply systems was carried out. The main indicators that affect the efficiency of the solar system and recommendations for their selection when calculating the annual heat output are also given. For the centralized heat supply system of the university's buildings, a simulation of the operation of the solar plant throughout the year was carried out. For buildings of different types, storeys, area, purpose, an analysis of the effectiveness of solar systems using different types of solar collectors was carried out with the help of a specialized software complex. The share of heat replacement by solar collectors is shown, which shows the expediency of using solar collectors on a number of buildings.