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A binary cycle is a method for generating electrical power from geothermal resources and employs two separate fluid cycles, hence binary cycle. The primary cycle extracts the geothermal energy from the reservoir, and secondary cycle converts the heat into work to drive the generator and generate electricity. [1]
15 wrz 2017 · Results show that the binary power plant has the best performance and lowest cost compared with other geothermal power plants analyzed, and there is a reduction in the total power generation cost when using renewable energy sources.
12 maj 2024 · According to Weber et al. , this explains why geothermal electricity generation in Germany is based on binary cycle systems, including both ORC and Kalina cycle power plants, which makes it possible to use geothermal fluids even at temperatures of 100 °C.
In the binary cycle, heat from the geothermal fluid is transferred to a secondary working fluid circulated in a closed loop. This heat is used to vaporize the working fluid that is subsequently expanded in a turbine coupled to an electrical generator.
Binary geothermal power plants are closed cycles that converts heat from the geothermal fluid into electricity by transferring the heat to another low boiling point working fluid to generate electricity (DiPippo, 2012; Saleh et al., 2007; Bliem and Mines, 1991).
24 mar 2017 · A vast majority of the existing binary power plants recovers heat of geothermal fluid in the range of 100–200°C. Binary cycle power plants have an average unit capacity of 6.3 MW, 30.4 MW at single-flash power plants, 37.4 MW at double-flash plants, and 45.4 MW at power plants working on superheated steam.
A geothermal binary power plant consists of a closed power cycle; most commonly, a Rankine cycle adopting an organic fluid (ORC) as working fluid is selected. The cycle is typically designed and optimized considering only the surface equipment of the plant.
