Thermo-economic analysis of a combined flash-binary geothermal cycle with a transcritical CO₂ cycle to produce green hydrogen
by Mohammad Ali Sabbaghi; Mohammad Sefid
International Journal of Exergy (IJEX), Vol. 43, No. 2, 2024

Abstract: In recent years, the increasing trend of population has led to an increase in energy demand in the world. In this study, a combined cycle with two flash chambers is proposed to provide energy for a transcritical CO₂ cycle. The obtained results provide that the proposed cycle has energy and exergy efficiencies of 5.79% and 28.06%, respectively, and can produce 3.99 lit/s of hydrogen. The PEM electrolyser requires the most investment with a cost rate of $1.8/hr. Comparing the present cycle with previous studies reveals that the proposed cycle has better performance.

Online publication date: Thu, 29-Feb-2024

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