CYCLE DIAGRAM OF GEOTHERMAL ENERGY

Link for citation: Yankovsky S.A., Lavrinenko S.V., Tsibulskiy Yankovskaya N.S., Gamov D.L. Cycle diagram of geothermal energy. Bulletin the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 7, рр. 122-136. In Rus. The relevance research is caused by need to develop alternative and environmentally friendly energy sources in conditions global warming. development will make it possible produce thermal electric without emissions CO2 into environment reduce dependence sector on hydrocarbon raw materials. main aim this study a comprehensive analysis features power plants, including existing technologies converting provide consumers Objects: diagrams plants operating different geographical climatic conditions, as well their working fluids. Methods: analytical review thematic publications using materials databases RSCI, Scopus Web Science, comparative effectiveness various indicators. Results. Currently, there are about 400 world. active environmental friendliness, low cost produced, minimal costs, lack atmospheric influences, absence burn fuel, etc. At same time, most world's use source with water temperature 100–200 °C. Among thermodynamic cycles schemes implemented, single out direct cycle one-stage two-stage separation source, supply dry steam turbine, binary combined versions. shows that have lowest installed electrical due relative simplicity high efficiency, but require parameters source. On other hand, highest unit cost, can be implemented relatively parameters, which was reason greatest spread implementation plant Organic Rankine сycle has number advantages compared Kalina, Stirling Brighton, among ones ease adaptation application, maintenance costs.