BASING THE EFFECTIVENESS OF UTILIZATION OF SEWAGE WATER HEAT BASED ON HEAT PUMP DEVICES IN AUTONOMOUS HEAT SUPPLY

Аннотация

In the world, there are strong trends in the use of renewable energy sources in the creation of energy-efficient systems of management of heat and fuel-energy resources. In this article, the authors used traditional methods such as technological parameters of heat pumps, experimental research, thermal engineering and calculation of the amount of sewage water and heat capacity to calculate the efficiency of utilization of sewage heat and its use in heat supply systems. As a result, it was determined that the overall efficiency of the system when heat pumps are used in autonomous heat supply systems is 4. Key words: heat supply systems, energy efficiency, technological parameters, heat pumps, autonomous heat supply systems. Introduction. Taking into account the picture of population growth, providing the population with quality and reliable energy units is a problem of human development. The use of energy is a sign of the strength of the scientific, technical, and economic management of society, which allows it to realize the level of its ventilation [1-5]. The energy needs of the countries of the world are increasing year by year. Currently, the development of energy supply and meeting the need for energy resources is mainly carried out at the expense of coal, oil, gas, and nuclear energy. The lack of relative reserves of organic resources (except for coal) now creates the problem of a stable, high-quality, and reliable supply of energy units to consumers. In particular, there are serious problems related to heating and hot water supply systems of objects in rural areas heating of residents’ homes, stable and reliable supply of natural organic fuels (natural gas, coal), and their savings. It is known that 40-45 percent of the energy produced in our Republic is spent on heating and lighting buildings. According to experts in the field, 360-450 kWh of energy is used on average for heating 1 m2 of buildings in Uzbekistan, where the climatic conditions are suitable for us, and 160-240 kWh of energy is used in developed countries. indicators increase with the improvement of the lifestyle of the population. Therefore, in several decrees and 34 MODELS AND METHODS IN MODERN SCIENCE International scientific-online conference decisions of the President of the Republic of Uzbekistan, the introduction of modern energy-efficient and energy-saving technologies, the development of renewable energy sources, and the provision of environmental stability are priorities and tasks defined [6-10]. Energy efficiency in heat supply systems through the use of geothermal, underground heat, and heat pumps in heat supply systems is one of the most promising innovations and is receiving great attention worldwide. Methods and materials. In this article, the authors determined the heat of sewage water and the technological parameters, quantities and heat capacities of heat pump devices using traditional methods such as experimental research, thermal engineering and calculation. An autonomous heat supply is a system that provides heat for heating and hot water supply in buildings and structures without connection to centralized heat sources. The main principles and elements of autonomous heat supply include the following aspects: Autonomous energy supply systems for consumers are becoming popular today. In autonomous heat and hot water supply systems, the following sources are the main sources of heat: Gas boilers: The most common heat source in stand-alone systems. They can be either wall-mounted or floor-standing. Solid fuel boilers: Use wood, coal, pellets and other solid fuels. They require more frequent maintenance, but can be more economical in some cases. Electric boilers: Easy to install and operate, but can be expensive to operate when electricity rates are high. Heat pumps: Use heat from the environment (air, ground, water) for heating. They have high energy efficiency, but the initial cost can be high. Heat pumps are devices that transfer heat from one source to another using the principle of thermal movement. They can effectively heat buildings and hot water by extracting heat from the environment (air, ground, or water) and transferring it to the heating system. Heating systems. Radiator systems: Radiators transfer heat to the rooms. They can be made of various materials, such as steel, aluminum or cast iron. Underfloor heating: Systems that provide an even distribution of heat over the floor surface. Can be water or electric. 35 MODELS AND METHODS IN MODERN SCIENCE International scientific-online conference Convectors and infrared heaters: Offer alternative heating methods that can be used depending on the requirements and characteristics of the room. Due to the decrease in the reserves of traditional energy sources all over the world, it is possible to achieve energy resource savings by using renewable energy sources and utilizing secondary energy resources, underground heat [10- 15]. Geothermal energy source temperature is