Zhang L. Improving the environmental safety of urbanized areas through the rational implementation of energy-efficient and environmentally friendly technologies in the field of heat supply.

Ph.D. thesis: 257 p., 15 tables, 22 figures, 3 appendixes, 168 references. URBANIZED AREAS, FIELD OF HEAT SUPPLY, ENVIRONMENTAL SAFETY, ENERGY-EFFICIENT TECHNOLOGIES, ENVIRONMENTAL PROTECTION TECHNOLOGIES, METHOD OF RATIONAL IMPLEMENTATION. The dissertation sets and solves the current scientific and applied task of increasing the efficiency of greening municipal energy systems and improving the ecological state of urbanized areas by creating and verifying an improved method for the rational implementation of energy-saving technologies at objects that consume and produce thermal energy in the municipal sector. The object of the study: processes of environmental pollution by emissions of harmful substances and greenhouse gases from municipal boiler plants. The subject of the research: the method of rational implementation of energy-efficient and environmental protection technologies in the field of heat supply. The purpose of the work: increasing the environmental safety of urban areas by using the method of rational implementation of energy-efficient and environmental protection technologies at utility facilities that produce and consume thermal energy. The tasks of the work are: 1) analysis and systematization of modern energy-efficient and ecological technologies in the field of urban heat supply; 2) formation of theoretical foundations for ensuring sustainable development of municipal energy; 3) development of an improved method of rational introduction of energy-saving technologies at objects that consume and produce thermal energy; 4) analysis of international experience of state regulation in the field of heat supply; 5) systematization of technologies for ecological and energy modernization of building heating systems; 6) verification of the method for rational implementation of energy-saving technologies at a real facility - a building of an educational institution; 7) development of recommendations for using the results of the conducted research in solving municipal energy problems. The scientific novelty of the obtained results is as follows: 1) For the first time, the feasibility of using and developing an information map form for multi-criteria assessment of the effectiveness of various strategies for the rational implementation of environmental energy-saving technologies based on the criteria of the specific cost of achieved environmental, economic and generalized effects has been scientifically substantiated, which constitutes an information basis for making reasoned technical decisions regarding the choice of the most cost-effective procedures for realizing the energy-saving potential of buildings and heat supply systems; 2) The method of rational implementation of energy-saving technologies in the field of heat supply has been improved by introducing new ecological and economic criteria for assessing the effectiveness of energy modernization procedures for technical systems "producer-consumer of thermal energy", the introduction of which allows for a more complete assessment of the degree of rationality of the use of investment resources when carrying out energy-efficient measures and implementing programs to improve the energy and environmental security of urbanized areas; 3) A mathematical model for determining the parameters and assessing the effectiveness of procedures for the rational implementation of energy-saving technologies was further developed, which took into account the losses of the integral energy-saving potential of objects that produce and consume thermal energy in the initial and final periods of its phased implementation; this allows increasing the accuracy of this mathematical model and the reliability of the environmental and economic effects established on its basis.