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A comprehensive thermodynamic assessment of an innovative solar-geothermal driven multigeneration system for sustainable production of energy, hydrogen, freshwater, heating and cooling

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  • Toker, Serpil Celik

Abstract

In the present research, an innovative solar and geothermal energy-assisted multigeneration plant for electricity, cooling, hydrogen, fresh water, and heating is developed and analyzed. The suggested energy system consists of a single flash geothermal (SFG) energy plant, a parabolic trough solar collector (PTSC), a supercritical carbon dioxide (sCO2) Brayton cycle (BC), an organic Rankine cycle (ORC), a Kalina cycle (KC), an absorption refrigerant cycle (ARC), a proton exchange membrane (PEM) electrolyzer, reverse osmosis (RO) desalination unit, and a heating thermal unit (HTU). The multigeneration system's performance is examined from energy, exergy, and exergoenvironmental viewpoints. In addition, the impacts of various parameters on the multigeneration system's performance are investigated. According to the analysis results, it is found that the designed polygeneration plant can generate 2479.67, 14487.5, and 23.5 kW of power, heating, and cooling, respectively. Moreover, the developed plant can generate 11.26 kg/h of hydrogen and 13.78 m3/h of freshwater. Furthermore, the overall outcomes show that an innovation plant can achieve energetic and exergetic efficiencies of 0.526 and 0.499, correspondingly. Besides, the SFG power plant has the highest exergy irreversibility. Finally, an exergoenvironmental impact factor and sustainability index of the overall system are calculated as 0.53 and 0.35, respectively.

Suggested Citation

  • Toker, Serpil Celik, 2025. "A comprehensive thermodynamic assessment of an innovative solar-geothermal driven multigeneration system for sustainable production of energy, hydrogen, freshwater, heating and cooling," Renewable Energy, Elsevier, vol. 252(C).
    • Handle: RePEc:eee:renene:v:252:y:2025:i:c:s0960148125012339
    DOI: 10.1016/j.renene.2025.123571
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