Abstract
The relevance of the work is due to the implementation of the Federal law “on energy saving and energy efficiency and on amendments to certain legislative acts of the Russian Federation” and is aimed at reducing environmental pollution from the production of electricity and heat at the CHP. The aim of the work is to increase the energy efficiency of electric energy generation by upgrading the coal thermal power plant, reducing environmental pollution from the enterprise by reducing the amount of fuel burned at the same capacity. Research methods are Analysis of existing technologies for utilization of low-potential thermal energy in the energy sector; Thermal, technical and economic analysis of technologies that allow converting low potential thermal energy into electrical energy; Simulation of installation parameters based on the organic Rankine cycle using the Smoweb software package; Analysis of modern manufacturers of organic Rankine cycle technology in order to select the most suitable. Results are a comparative analysis of existing technologies for utilization of low-potential heat energy was carried out and the most effective option for energy efficiency was chosen. Heat and techno-economic analysis of the application of technologies to convert low-grade thermal energy into electrical energy was performed; modeling installation using the principle of organic Rankine cycle utilizing heat energy from the boiler BKZ-420-140-PT1 was designed
Highlights
The rapid growth of electricity needs in the XXI century, the crisis state of the environment, technological problems that need to be addressed to meet these needs, based on modern criteria for a sharp increase in energy efficiency, reducing costs and minimizing the impact on the environment, require a significant expansion of research and development in the power industry
Design and design work in the heat power industry should be aimed at the creation of highly efficient and environmentally friendly thermal power plants using advanced technologies and power equipment, providing solutions to the following tasks: improving the efficiency of energy supply by increasing its reliability and reducing the cost of electricity production; maximum reduction of harmful emissions of thermal power plants into the environment; increasing productivity and improving working conditions; reducing the cost of repair and restoration work
The city is located in Siberia where the temperature difference varies from -40 °C to +40 °C, so the rejection of the existing source of generation of thermal power plants is impossible
Summary
The rapid growth of electricity needs in the XXI century, the crisis state of the environment, technological problems that need to be addressed to meet these needs, based on modern criteria for a sharp increase in energy efficiency, reducing costs and minimizing the impact on the environment, require a significant expansion of research and development in the power industry. To reduce the environmental impact of CHP is possible by reducing the burned fuel, by improving the efficiency of production of electricity and heat in the utilization of heat of the exhaust gases. There are two types of ORC installations, the classical Rankine cycle and the regenerative one with the addition of a heat exchanger transferring heat from steam after the turbine to the condensate after the condenser.
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