Andrii N. The control system of heat consumption of buildings with a combined heating and solar energy

The thesis is devoted to the development and improvement of systems and methods to control heat consumption in order to increase the energy efficiency of heat consumption of buildings with partial use of renewable energy sources (solar collectors). The existing heat consumption circuit (circuit connection, technical solutions using equipment, daily and seasonal schedules of thermal load characteristics for different types of buildings) using heat from solar collectors. According to the characteristics of heat supply buildings implemented a number control systems of heat consumption, indicating the advantages and disadvantages of these systems and energy efficiency indicators deductible. The management methods of systems heat consumption have been classified and ranking. The priorities of their application have been identified. Modes of supply of thermal energy from an external power source, mode of SCT and heat consumption of heat energy is illustrated by the graphs. The results of the thesis found practical application in the design and implementation of the five heat consumption control systems of various buildings (administrative, residential, industrial). According to the results of mathematical modeling of SCT the new control unit for heat consumption with additional features that allow you to realize the minimax criterion to select optimum modes of buildings heat consumption, depending on the available potential sources of heat, was established. Developed block scheme of basic processing and control systems of heat consumption algorithms and related software. The paper decided the actual task of determining the most efficient modes of automated control system of heat consumption that provides energy savings through automation of heat consumption without disruption of the consumer, networking and heat source. Inverse problem to determine the thermal characteristics of the building were solved. Verification model heat consumption control system at the experimental stand was conducted. The first time proposed and implemented a method of using solar energy for heating buildings by mixing a battery coolant from the solar collector in the return pipe. The calculation and experimental data of the solar heating system were made for support the heating of the building. Calculation of solar installations includes determining the available amount of solar energy, solar collector and heat generating installation as a whole, the thermal load on the heating energy and geometric characteristics of the solar system, including collector surface area, battery volume of heat energy, the annual fuel savings and payback period. Experimental stand of SCT building with the combined use of district heating and solar energy for heat supply, showed the effectiveness and future prospects of its application. Materials thesis found practical application in the design and implementation of a number of heat consumption of control systems, five buildings in the city Kyiv and Kyiv region, which is confirmed by relevant acts implementation. The period of payback for implementation is 1 ... 2 heating seasons, and reduction of thermal energy to 20-32%. Savings through the use of solar energy was 4%