Abstract
This article recommended a new green hybrid poly-generation system driven by a geothermal source of energy and biomass to generate hydrogen via PEM electrolyzer, power, heating effect, and cooling effect, and also with a carbon dioxide capturing option. This hybrid poly-generation system is evaluated by applying energetic, exergetic, and exergoeconomic methods to assess the plant implementation. The results of these numerical investigations show that the system supplies net power of almost 22.23 MW, 34.13 MW of heating effect, a cooling effect of 96.40 MW, plus hydrogen generation of 124 kg/h. Also, the rate of CO2 capturing is 4.32 kg/s. The exergy efficiency and energy efficiency of the system have been estimated at 17.87% and 79.47%, sequentially. Besides, the plant has a total product cost rate of 1.162 $/s and a sustainability index of 1.218. Also, the parametric investigations are finding that altering ARC absorbent concentration has an approving impact on the system from an exergoeconomic standpoint while altering the geothermal temperature and turbine inlet pressure have a favorable role on the system efficiencies and sustainability improvements. Eventually, it is perceived that the CO2 capturing system and combustion chamber contribute most to the total destroyed exergy share of the system.
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