Development and assessment of a novel geothermal power-based multigenerational system with hydrogen and ammonia production options

In this study, a new geothermal energy-based multigeneration system for producing electricity, fresh water, drying air, hot water, hydrogen, and ammonia is proposed and studied in detail through system analysis and performance assessment. A detailed thermodynamic assessment is performed in order to investigate the whole plant performance and conduct parametric analyses to investigate how the plant effectiveness is affected by varying working conditions along with the state properties. The overall plant is analyzed and evaluated by utilizing the Engineering Equation Solver (EES) software program. According to the analysis outputs, the thermodynamic efficiencies of the multigeneration system are computed as 75.07% energetically and 72.26% exergetically. Furthermore, parametric analysis results indicate that geothermal inlet conditions are the most influential parameters on the energetic and exergetic performances of sub-plants and the whole plant.

Automated summary

This study introduces a new geothermal energy-based multigeneration system that can produce electricity, fresh water, hot water, dry air, hydrogen, and ammonia. Through system analysis and performance evaluation, it is found that geothermal inlet conditions have the most significant impact on the energy and conversion performance of the entire plant.