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Advanced monitoring of geothermal Organic Rankine Cycles

Author

Listed:
  • Irl, Matthäus
  • Schifflechner, Christopher
  • Wieland, Christoph
  • Spliethoff, Hartmut

Abstract

Geothermal Organic Rankine Cycle (ORC) power plants have tremendous worldwide potential for the utilization of low- and medium-temperature geothermal resources. However, monitoring of such a system is associated with special challenges for plant operators since the generated electrical power fluctuates strongly, which is caused by mainly two reasons: Firstly, due to the changing condensation conditions caused by air-cooled condensers, and secondly, due to the formation of scaling and fouling. Therefore, the process parameters of a geothermal ORC plant are highly variable, both in terms of diurnal and seasonal fluctuations. Considering the currently applied control software in commercial ORC plants, these fluctuations result in challenges regarding a reliable identification of potential degradation processes within the ORC process.

Suggested Citation

  • Irl, Matthäus & Schifflechner, Christopher & Wieland, Christoph & Spliethoff, Hartmut, 2023. "Advanced monitoring of geothermal Organic Rankine Cycles," Renewable Energy, Elsevier, vol. 217(C).
    • Handle: RePEc:eee:renene:v:217:y:2023:i:c:s0960148123010388
    DOI: 10.1016/j.renene.2023.119124
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