Design of an integrated multigenerational energy system for clean hydrogen and oleic acid fuels production

This study designs and develops an innovative multigenerational integrated solar-geothermal system that seeks to address a wide range of energy needs, including power generation, cooling, hot water production, oleic acid synthesis, biomass production, and hydrogen production. The examination of energy and exergy is conducted to demonstrate the system's performance. A parametric study investigation is undertaken to examine the impact of operating circumstances and environmental parameters on the efficiency of the system. According to the energy study, the multigeneration system has an energy efficiency of 11%. The analysis of exergy provides significant insights into the system's functioning, indicating an exergy efficiency of 26.5%. The energy and exergy efficiencies of the organic Rankine cycle are obtained to be 21.14% and 18.07%, respectively. The energy efficiencies of the primary subsystems, such as steam Rankine cycle, organic Rankine cycle, gasification unit and electrolyzer unit, are found to be 21.14%, 18.5%, 37.42%, and 61.1%, respectively. The cost rate of the overall system is then calculated to be 123.3$/h while it is 31.3$/h for the parabolic trough collectors.