Energetic and Exergetic Insights into Geothermal Sourced ORC and Supercritical CO2 Systems
Source abstract
Abstract
This study investigates the thermodynamic performance of two power-generation systems driven by a geothermal heat resource. The first configuration is an organic Rankine cycle (ORC) employing cyclopentane, R152a, and R1233zd as working fluids, while the second utilizes a supercritical carbon dioxide (s-CO2) Rankine cycle. Detailed energy and exergy analyses for each working fluid were carried out using the EBSILON® Professional simulation. Among the ORC fluids, cyclopentane demonstrated the most favorable performance. In the ORC system, thermal and exergy efficiencies reached up to 29.58% and 70.51%, respectively. However, in the s-CO2 Rankine cycle, thermal and exergy efficiencies were found to be 20.29% and 47.77%, respectively. Also, it was determined that the ORC and s-CO2 Rankine were economically viable for investment, with payback periods of 4.2 years and 2.26 years, respectively.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Thermodynamic and Exergetic Analyses of Power and Cooling Systems · Geothermal Energy Systems and Applications · Refrigeration and Air Conditioning Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Iskenderun Technical University, 31200 İskenderun, Türkiye
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