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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Thermodynamic Modeling and Energy Analysis of Organic Rankine Cycle with a Power Capacity of 60 kWe
Author(s)
Serigne Thiao1, Awa Mar2, Omar Sylla1, Mamadou Sow1, Diouma Kobor1 and Issakha Youm3
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DOI:10.17265/1934-8975/2025.01.001
Affiliation(s)
1. Laboratory of Chemistry and Physics of Materials (LCPM), Department of Physics, Assane Seck Universty of Ziguinchor, BP 523 Ziguinchor, Senegal
2. Pole of Sciences and Technologies, Higher School of Engineering Sciences and Techniques, Amadou Moktar MBOW University of Dakar (UAM), BP 45927 Dakar, Senegal
3. Laboratory of Solar Energy, Materials and Systems, Departement of Physics, Cheikh Anta DIOP University, BP 5005 Dakar, Senegal
ABSTRACT
The objective of this study is to establish a thermodynamic model of an ORC (organic Rankine cycle) for power electricity. A case study was proposed in an area where direct solar irradiation is abundant. The number of heliostats used in the system as a function of the DNI (direct normal irradiation) was studied. The efficiencies of ORC and receiver, the power of turbine, pump, evaporator and receiver as a function of thermodynamic parameters such as temperature, pressure at the level of different components of the system are studied. The results obtained show that the number of heliostats used decreases when the DNI increases. For a DNI of 700 W/m2 to 500 W/m2, the number of heliostats goes from 280 to 60. ORC efficiency and turbine power increase respectively from 11% to 22% and from 20 kW to 50 kW when the condenser temperature decreases. Also it is noted an increase of receiver efficiency when evaporator temperature increases.
KEYWORDS
ORC, DNI, heliostat, receiver, turbine.
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